Browse Equation problems Studdy Solved!

Problem 301

2) $92 \times 75=$

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Problem 302

(7) Halla el término que falta para que fracciones sean equivalentes. $\begin{array}{ll} \frac{2}{3}=\frac{8}{19} & \cdot \frac{5}{7}=\frac{\square}{35} \\ \cdot \frac{2}{9}=\frac{10}{45} & \cdot \frac{4}{\square}=\frac{28}{49} \end{array}$

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Problem 303

The line $x+5 y+22=0$ intersects the circle $x^{2}+y^{2}+4 x+8 y-6=0$ at the point $A$ and $B$ . Find the coordinates of $A$ and $B$ . Answer a. $A(7,-3), B(3,5)$ b. $A(7,-3), B(3,-5)$ c. $A(6,-3), B(3,-7)$ d. $A(6,-3), B(3,-7)$

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Problem 304

A line passes through the points $(1,2)$ and $(5,10)$ . Find its gradient.

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Problem 305

Perform the indicated multiplication. $\begin{array}{c} 6(-9) \\ 6(-9)= \end{array}$

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Problem 306

Find the centre whose equation is : $2 x^{2}+2 y^{2}-3 x+2 y+1=0$

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Problem 307

Tatenda has a circle with an equation $x^{2}+y^{2}-8 x+4 y+4=0$ . Find the coordinates of the centre of this circle.

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Problem 308

Show that the line passing through the points $A(6,4)$ and $B(7,11)$ is parallel to the line passing through $P(0,0)$ and $Q(2,14)$ .

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Problem 309

Solve the Absolute Value Equation T2ES1
Solve each equation. 1) $|x-3|=5$ 2) $|x+7|=2$ 3) $\left|\frac{2}{3}-x\right|=1$
Solution $=$ Solution $=$ Solution $=$

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Problem 310

A line passes through the points $(1,2)$ and $(5,10)$ . Find its gradient.

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Problem 311

5) $|-x+9|=3$
Solution $=$

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Problem 312

Find the coordinates of $P$ that represent the weighted average for the given set of points with the given weights. - A has a weight of 3 . - $B$ has a weight of 2 .

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Problem 313

The point $K$ is the midpoint of $\overline{J L}$ . Find the location of $J$ .
Location of $J$ $\square$

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Problem 314

Solve for $y$ . $4+3 y=10$
Simplify your answer as much as possible. $y=$ $\square$

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Problem 315

Find the real roots of the equation by factorin $x^{2}+x-56=0$

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Problem 316

The point $X$ is the midpoint of $\overline{W Y}$ . Find the location of $Y$ .
Location of $Y$ : $\square$

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Problem 317

Solve for $y$ . $2(3 y+7)=68$
Simplify your answer as much as possible. $y=$

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Problem 318

Solve for $x$ $\frac{3 x+14}{4}=2$
Simplify your answer as much as possible. $x=$ $\square$

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Problem 319

4. $\$ 327.45$ subtracted from $\$ 572.98$ is closest to which of the following? a. $\$ 240.99$ b. $\$ 245.57$ c. $\$ 247.18$ d. $\$ 248.99$ Mark to review later...

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Problem 320

5. Solve the following equation: $(-175+136)+(64-21)=$ a. -82 b. -4 c. 4 d. 82 Mark to review later...

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Problem 321

SChool. Rodrigo paints the is the area of the triangle shown. What is the area of the triangle? You can use a formula to find the area. Use the side labeled 4 ft as the base. Then the height is 3 ft . $\begin{aligned} A & =\frac{1}{2} b h \\ & =\frac{1}{2}(4)(3) \\ & =\frac{1}{2}(12) \\ & =6 \end{aligned}$
The area of the triangle is $6 \mathrm{ft}^{2}$ .
1. Suppose the height of Rodrigo's triangle in the Example is doubled. Will the area of the triangle also double? Explain how you know.

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Problem 322

2. A package of crackers weighing 8.2 ounces costs $\$ 2.87$ . What is the cost per ounce of crackers?

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Problem 323

2. There are 12 inches in 1 foot and 5,280 feet in 1 mile. Elena ran $2 \frac{1}{2}$ miles. a. How many feet is that? b. How many inches is that?

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Problem 324

Question 4 Use the modified Euler's method to obtain the numerical solution of the initial value problem (IVP), $\frac{d y}{d x}=x+y$ , considering that $y(0)=0$ and step size of 0.05 for $y(0.2)$ . 8 marks Compare your results with the analytical/exact solution, $y(x)=e^{x}-x-1$ , and hence evaluate the absolute percentage error (all answers in 3d.p). $\quad 7$ marks

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Problem 325

A virus is thought to spread through a chicken farm according to the equation $N \cdot=\frac{800}{1+790 e^{-0,1 t}}$ where $\mathbb{N}$ is the number of infected chicken and $t$ is in days. How many chickens are infected at time $t=0 ?$ A. 1 chicken B. 800 chickens C. 0 chickens D. NONE of the above

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Problem 326

EJERCICIO 1: Un tubo de acero que está empotrado en la parte superior soporta una carga de PA $=22300 \mathrm{Lb}$ , la cual está distribuida de manera uniforme alrededor de un casquete circular que se encuentra en la parte superior del tubo mas bajo (tubo inferior). En la parte inferior se aplica una carga PB. los diámetros asociados al tubo superior son: $\mathrm{d} 1=2$ pulg (diámetro interno), $d z=2.375$ Pulg (diámetro externo). la longitud del tubo superior es: $L=14$ in (Pulgadas).
Los diámetros asociados al tubo inferior son: $\mathrm{d} 3=2.25$ pulg (diámetro interno), $d 4=2.5$ Pulg (diámetro externo). la longitud del tubo inferior es: L2 $=16$ in (Pulgadas).
NOTA 1: Omitir el peso propio de los tubos. NOTA 2: Escriba el procedimiento y ecuaciones usadas para obtener la respuesta. a) ¿El cilindro de acero superior está soportando un esfuerzo de que tipo? Explique b) ¿El cilindro de acero inferior está soportando un esfuerzo de que tipo? Explique c) ¿Si se retira la carga o fuerza PB, el cilindro inferior que tipo de esfuerzo está soportando? Explique d) Encuentre el valor de la carga o fuerza PB tal que el esfuerzo en la parte superior sea de 25000 psi. e) ¿Cuál o que valor tiene el esfuerzo resultante en la parte inferior? f) Si la carga PA permanece constante, encuentre el nuevo valor de PB de manera que las partes superior e inferior estén sometidas al mismo esfuerzo de tensión. g) Del numeral anterior comente en que magnitud la fuerza se aumenta con respecto a PA. h) Calcule las deformaciones unitarias por tracción correspondientes a los segmentos superior e inferior del tubo para las cargas del numeral f) si se conoce que el alargamiento de segmento superior del tubo es de 0.168 pulg. $Y$ el desplazamiento hacia debajo de la parte inferior del tubo es de 0.420 pulg.

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Problem 327

$-4|8-5 n|=13$

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Problem 328

Lucas, who is single, received $\$ 8,000$ of social security benefits. His AGI before the social security benefits was $\$ 15,000$ . He also had $\$ 200$ of tax-exempt interest. What is the amount of taxable social security benefits?

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Problem 329

6)The region bounded by the curves $y=x^{2}+1, y=3-x^{2}$ , is revolved about the x -axis , the volume of the generated solid is : a) $\int_{-1}^{1} \pi\left(3-x^{2}\right)-\left(x^{2}+1\right)^{2} d x$ b) $2 \int_{-\sqrt{2}}^{\sqrt{2}} x\left(\left(x^{2}+1\right)-\left(3-x^{2}\right)\right) d x$ c) $\int_{-\sqrt{2}}^{\sqrt{2}} \pi\left(\left(x^{2}+1\right)^{2}-\left(3-x^{2}\right)^{2}\right) d x$ d) $\int_{-1}^{1} \pi\left(\left(x^{2}+1\right)^{2}-\left(3-x^{2}\right)^{2}\right) d x$

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Problem 330

Find the sum or difference. Simplify if necessary, * $\frac{5}{9}-\frac{1}{2}=$ $6 / 7$ $4 / 7$ $4 / 18$ $1 / 18$ None of the above

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Problem 331

Solve the following problem It was $13^{\circ} \mathrm{C}$ yesterday, but the temperature changed by $-18.6^{\circ}$ overnight. What is the temperature now? (1 point) $\square$ C

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Problem 332

What is the first step when solving the equation below for $x$ ? $4 x-0.2=1.9$

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Problem 333

Use PMT $=$ $M T=\frac{P\left(\frac{r}{n}\right)}{1-\left(1+\frac{r}{n}\right)^{-n t}} t o$ to determine the regular payment amount, rounded to the nearest dollar. Your credit card has a balance of $\$ 6200$ and an annual interest rate of $17 \%$ . With no further purchases charged to the card and the balance being paid off over three years, the monthly payment is $\$ 221$ , and the total interest paid is $\$ 1756$ . You can get a bank loan at $9.5 \%$ with a term of four years. Complete parts (a) and (b) below. a. now mucn will you pay eacn monun now aves unis compare win tne crealt-cara payment eacn montn select me correct choice below and fill in the answer boxes to complete your choice. (Do not round until the final answer. Then round to the nearest dollar as needed.) A. The monthly payments for the bank loan are approximately $\$ 156$ . This is $\$ 65$ less than the monthly credit-card payments. B. The monthly payments for the bank loan are approximately $\$$ . This is $\$$ more than the monthly credit-card payments. b. How much total interest will you pay? How thes compare with the total credit-card interest? Select the correct choice below and fill in the answer boxes to complete your choice. (Use the answer from part a to find this answer. Round to the nearest dollar as needed.) A. The total interest paid over 4 years for the bank loan is approximately $\$$ $\qquad$ This is $\$$ $\qquad$ more than the total credit-card interest. B. The total interest paid over 4 years for the bank loan is approximately $\$$ $\qquad$ ]. This is $\$$ $\square$ less than the total credit-card interest.

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Problem 334

Escriba la ecuación de la línea en forma pendiente-intersección totalmente simplificada.

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Problem 335

$x-5=-2$

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Problem 336

Graph the equation by plotting points. $y=6 x-9$
Use the graphing tool on the right to graph the equation. Click to enlarge graph

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Problem 337

( 417 mintiat) hn $\begin{array}{l} \text { shen } x\left(y^{\prime \prime}(t)\right)= \\ \text { hn } \\ \text { b) } x^{2} Y(x)+3 x-2 \end{array}$ ch $x^{2} \times(4)-26+3$ $4)^{3} x(x)+2 x^{2}-3$

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Problem 338

4) There are 2 apples to every 1 banana in the bowl. How many apples for 7 bananas?

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Problem 339

There are 4 jacks in a deck of 52 cards. What is the probability of drawing a Jack from a deck of cards, putting it aside, and then drawing another Jack?

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Problem 340

5) If $\sum_{n=2}^{\infty}(n+2)(n+1) a_{n} x^{n-1}+\sum_{n=1}^{\infty}(n+1) a_{e^{n+1}} x^{n+1}=0$ , then a) $a_{n+1}=\frac{-a_{n-1}}{(n+3)}, n \geq 2$ c) $a_{n+1}=\frac{-n a_{n-1}}{(n+3)(n+2)}, n \geq 2$ b) $a_{n+1}=\frac{-a_{n-1}}{(n-1)}, n \geq 2$ d) $a_{n+1}=\frac{-a_{n-1}}{(n+3)}, n \geq 2$

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Problem 341

7) For every one sweot 1 eat you cat three. We both ate a total of 32 sweets. How many sweets did I eat?

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Problem 342

Leveled Practice for 1-3, use the multiplicatior
1. $27 \div 3=$ ? $3 x=27$
2. $63 \div 9=$ ?
So, $27 \div 3=$ $9 x=63$ So. $63 \div 9=$

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Problem 343

Solve for all values of $x$ by factoring. $x^{2}-2 x-5=-5$

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Problem 344

Nasir has an annual salary of $\$ 64,000$ , and his company pays him iwice a month. What is the gross income per paycheck that Nasir receives? A. $\$ 1230.77$ B. $\$ 10,666.67$ C. $\$ 2666.67$ D. $\$ 5333.33$

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Problem 345

$-10(8.511)=$

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Problem 346

5. $4 x^{2}-15=85$

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Problem 347

Milena's take-home pay is $\$ 1200$ a month. $12 \%$ of her take-home pay is spent on her cable bill. How much is Milena's monthly cable bill? A. $\$ 120$ B. $\$ 144$ C. $\$ 104$ D. $\$ 14.4$

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Problem 348

What is the difference? $-43-(-15)$
Enter your answer in the box. $\square$

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Problem 349

Darius lives in Ohio and pays $5.5 \%$ in sales tax. If he just bought a sweatshirt that cost $\$ 24$ , what was the total amount he paid for the sweatshirt, including sales tax? A. $\$ 25.32$ B. $\$ 22.68$ C. $\$ 37.20$ D. $\$ 13.20$

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Problem 350

Skill Practice 3 Write an equation of the line passing through the point $(-3,2)$ and parallel to the line defined by $x+3 y=6$ . Write the answer in slope-intercept form and in standard form. Answer $y=-\frac{1}{3} x+1 ; x+3 y=3$

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Problem 351

Hemodialysis is a process by which a machine is used to filter urea and other waste products from an individual's blood when the kidneys fail. The concentration of urea in the blood is often modeled as exponential decay. If $K$ is the mass transfer coefficient (in $\mathrm{mL} / \mathrm{min}), c(t)$ is the urea concentration in the blood at time $t$ (in $\mathrm{mg} / \mathrm{mL}$ ) and $V$ is the blood volume, then $c(t)=c_{0} e^{-K t / V}$ where $c_{0}$ is the initial concentration at time $t=0$ . (a) How long should a patient be put on dialysis to reduce the blood urea concentration from an initial value of $1.67 \mathrm{mg} / \mathrm{mL}$ to $0.81 \mathrm{mg} / \mathrm{mL}$ , given that $K=340 \mathrm{~mL} / \mathrm{min}$ and $V=32,935 \mathrm{~mL}$ ? Round your answer to one decimal place. $\square$ min (b) Derive a general formula for the dialysis time $T$ in terms of blood volume $V$ , mass transfer coefficient $K$ , the initial urea concentration $c_{0}$ , and the target urea concentration $c$ . $T=$ $\square$

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Problem 352

A technical machinist is asked to build a cubical steel tank that will hold 525 L of water. Calculate in meters the smallest possible inside length of the tank. Round your answer to the nearest 0.01 m . $\square$ m

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Problem 353

Question 1 of 14, Step 1 of 2 Correct
Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards without replacement from a standard deck. If both cards are diamonds, your friend will pay you $\$ 801$ . Otherwise, you have to pay your friend $\$ 48$ .
Step 1 of 2: What is the expected value of your bet? Round your answer to two decimal places. Losses must be expressed as negative values.
Answer How to enter your answer (opens in new window) Tables Keyboard Shortcuts \$

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Problem 354

牙病的学生人数占全校人数的 $12 \%$ , 豌豆学院共有 700 名学生, 有牙病的学生有 $\square$ 名。

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Problem 355

芝麻的出油率约为 $45 \%$ ，豌豆芝麻厂椎出 675 kg 芝麻油，用了 $\square$ kg芝麻。

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Problem 356

Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards without replacement from a standard deck. If both cards are clubs, your friend will pay you $\$ 659$ . Otherwise, you have to pay your friend $\$ 40$ .
Step 1 of 2 : What is the expected value of your bet? Round your answer to two decimal places. Losses must be expressed as negative values.
Answer How to enter your answer (opens in new window) Tables Keypad Keyboard Shortcuts

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Problem 357

The Remainder Theorem states the following for any polynomial $f(x)$ : $\frac{f(x)}{(x-a)}=q(x)+\frac{f(a)}{(x-a)}$
Suppose $(x-b)$ is a factor of $f(x)$ . Then $f(b)$ is $\square$ Suppose $f(x)$ is divided by $(x-d)$ . Then the remainder is $f(d) \vee 0^{8}$

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Problem 358

Examine the paragraph proof. Which theorem does it offer proof for?
Prove: $\angle X V Z \cong \angle W V Y$ We are given an image of $\overline{W Z}$ and $\overline{X Y}$ , which intersect at point $V . m \angle X V Z+m \angle Z V Y=180^{\circ}$ by the Definition of Supplementary Angles. $m \angle Z V Y+m \angle W V Y=180^{\circ}$ by the Definition of Supplementary Angles. Since the sum of $m \angle X V Z+m \angle Z V Y=m \angle Z V Y+m \angle W V Y$ by the Transitive Property of Equality, $m \angle Z V Y$ can be subtracted from both sides of the equation because of the Subtraction Property of Equality. Therefore, $m \angle X V Z=m \angle W V Y$ and $\angle X V Z \cong \angle W V Y$ by the definition of congruent angles. Alternate Interior Angles Theorem Corresponding Angles Theorem Vertical Angles Theorem Same-Side Interior Angles Theorem

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Problem 359

Solve for $u$ . $-\frac{1}{2} u-\frac{6}{7}=-\frac{4}{5}$
Simplify your answer as much as possible.

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Problem 360

Evaluate the limit, if it exists. If a limit does not exist, type "DNE". $\lim _{t \rightarrow-1}(t+2)^{3}\left(t^{2}+1\right)^{5}$
Limit: $\square$ $\square$
Submit answer Next item

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Problem 361

$2 \frac{3}{8}+7 \frac{5}{12}=$

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Problem 362

Consider the area between the graphs $x+4 y=16$ and $x+5=y^{2}$ . This area can be computed in two different ways using integrals. First of all it can be computed as a sum of two integrals $\int_{a}^{b} f(x) d x+\int_{b}^{c} g(x) d x$ where $a=$ $\square$ , $b=$ $\square$ , $c=$ $\square$ and $f(x)=$ $\square$ $g(x)=$ $\square$ Alternatively this area can be computed as a single integral $\int_{\alpha}^{\beta} h(y) d y$ where $\alpha=$ $\square$ , $\beta=$ $\square$ and $\square$ Either way we find that the area is $\square$

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Problem 363

0/1 point
A CRNA placed 4.8 cc of a medication into an IV bag. The stock from which the CRNA took the medication from was in vial having a label that says: 122 mg per 14 mL . Given this information, how many cg of medication are inside IV bag? Report the answer to the nearest tenth.

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Problem 364

Write the standard form of the equation of the specified circle. Center: $(5,-8)$ ; tangent to the $y$ -axis $\square$

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Problem 365

(7) USE SEPERRAION OF JARIABLES TO SOLVE $\frac{d y}{d t}=\frac{2}{3 t y+y} \quad y(1)=-5$
AT THE FIRST STEP, TIEE SOLUTION IS GIVEN BY $f(y)=g(t)+C$ WHERE $f(y)$ anD $g(t)$ DO NOT CONTANN ANY CONSTANS TERCMS AND F HAS a LEAding COEFFICLENT $1 / 2$ . ENTER TIIESE FUNCTIOWS, THE CONSTANT C FOR WIHCLH THE INITIAL CONOTION IS SATISTIED AND THES SLLUTION. $\begin{array}{l} f(y)= \\ g(t)= \\ C= \\ y(t)= \end{array}$

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Problem 366

Question 8 - of 30 Step 2 of 2
Customer account "numbers" for a certain company consist of 3 letters followed by 4 numbers. Step 2 of 2 : How many different account numbers are possible if repetitions of letters and digits are not allowed?
AnswerHow to enter your onswer (opens in new window) 2 Points Tables Keypad Keyboard Shortcuts

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Problem 367

The point $(-10,22)$ is on the terminal side of the angle and $x=-10, y=22$ . First find the value of $r$ . $\begin{aligned} r & =\sqrt{x^{2}+y^{2}} \\ & =\sqrt{ }+484 \\ & =\sqrt{ } \end{aligned}$

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Problem 368

Find the limit, if it exists. (If an answer does not exist, enter DNE.) $\lim _{x \rightarrow \infty} \frac{\sqrt{x+5 x^{2}}}{3 x-1}$

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Problem 369

Out of 423 applicants for a job, 229 have over 10 years of experience and 62 have over 10 years of experience and have a graduate degree. Step 1 of 2 : What is the probability that a randomly chosen applicant has a graduate degree, given that they have over 10 years of experience? Enter a fraction or round your answer to 4 decimal places, if necessary.

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Problem 370

In a sociology class there are 14 sociology majors and 10 non-sociology majors. 3 students are randomly selected to present a topic. What is the probability that at least 2 of the 3 students selected are sociology majors? Express your answer as a fraction or a decimal number rounded to four decimal places.
AnswerHow to enter your answer (opens in new window) 4 Points Tables Keypad

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Problem 371

There are 69 students in a nutrition class. The instructor must choose two students at random. \begin{tabular}{|c|c|c|} \hline \multicolumn{3}{|c|}{ Students in a Nutrition Class } \\ \hline Academic Year & Nutrition majors & non-Nutrition majors \\ \hline Freshmen & 13 & 11 \\ \hline Sophomores & 3 & 8 \\ \hline Juniors & 8 & 13 \\ \hline Seniors & 6 & 7 \\ \hline \end{tabular} Copy Data What is the probability that a freshman non-Nutrition major and then a sophomore non-Nutrition major are chosen at random? Express your answer as a fraction or a decimal number rounded to four decimal places.

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Problem 372

3. If $x^{2}+4=29$ , then $x^{2}-4=8$ A. 5 B. $\sqrt{21}$ C. 21 D. 25 I. 33

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Problem 373

بين ضرايب معادله برقرار باشد، كدام گَينه، يكى از ريشههاى معادله |است؟ $\begin{array}{rr} \frac{c}{a} & 1 \\ \frac{c}{\mu a} & \mu \\ -\frac{c}{\mu a} & \mu \\ -\frac{c}{a} & \kappa \end{array}$

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Problem 374

اگَر $\alpha$ و $\beta$ جوابهاى معادلهُ ه مقدار
IV 1 १ 11 $\square$ 19 $\mu$

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Problem 375

The following table shows mean annual earnings for women and men by their highest achieved level of education. As a percentage, how much more does a man with a master's degree earn than a woman with a master's degree? Assuming the difference remains constant over a 40 -year career, how much more does the man earn than the woman? \begin{tabular}{|l|c|c|c|c|} \hline & \begin{tabular}{c} High \\ School \end{tabular} & \begin{tabular}{c} Associate's \\ degree \end{tabular} & \begin{tabular}{c} Bachelor's \\ degree \end{tabular} & \begin{tabular}{c} Master's \\ Degree \end{tabular} \\ \hline Women & $\$ 31,677$ & $\$ 39,604$ & $\$ 59,402$ & $\$ 76,106$ \\ \hline Men & $\$ 45,390$ & $\$ 59,250$ & $\$ 87,343$ & $\$ 114,652$ \\ \hline \end{tabular}
A man with a master's degree earns $\square$ $\%$ more annually than a woman with a master's degree. (Round to the nearest whole number as needed.)

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Problem 376

f $(p-q)^{2}=25$ and $p q=14$ , what is the value of $(p+q)^{2}$ ? (A) 25 (B) 36 (C) 53 (D) 81

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Problem 377

اكرَ $\alpha$ و $\beta$ ريشههاى معادلهُ $\Lambda$ (rm+1) $x^{\boldsymbol{r}}-(\boldsymbol{\kappa} m+\boldsymbol{r}) x+(m+\mathbf{1})=。$ رابطة مىتواند باشد؟ $-r$ $\mu$ 1 $\mu$ $-1$ F

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Problem 378

Calculate the compound amount from the given data. principal $=\$ 750$ , compounded monthly; 11 years, annual rate $=4 \%$

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Problem 379

Calculate the compound amount from the given data. principal $=\$ 500$ , compounded monthly, 9 years, annual rate $=4 \%$

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Problem 380

In a business class there are 6 business majors and 9 non-business majors. 3 students are randomly selected to present a topic. What is the probability that at least 2 of the 3 students selected are business majors? Express your answer as a fraction or a decimal number rounded to four decimal places.
AnswerHow to enter your answer (opens in new window) 4 Points Tables Keypad Keyboard Shortcuts

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Problem 381

استخرجت البيانات التالية من دفاتر احدى الشركات \begin{tabular}{|c|c|c|c|} \hline تكاليف التحويل & | & الإجمالي & | البيان \\ \hline 42400 & 22500 & 64900 & \begin{tabular}{l} |اول الميد انتاج تحت التشغيل \end{tabular} \\ \hline 185600 & 60000 & 245600 & تكاليف الفترة الجارية \\ \hline 228000 & 82500 & 310500 & |اجمالي التكاليف \\ \hline \end{tabular}
وبلغت عدد الوحدات المكافئة من المواد 20000 وحدة ومن تكاليف التحويل 1900
فان تكلفة الوحدة المكافئة من تكالبف التحويل تبلغ
Select one: $\square$ a. 9 b. 7 دنانير 7 c. 3 دنانير 3 d. دينار12

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Problem 382

$0=-2 x^{2}+12 x-3$

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Problem 383

If $\alpha$ and $\beta$ are the roots of the quadratic gquation $x^{2}-9 x+2=0$ , find the quadratic equation ane $\alpha^{3}$ and $\beta^{3}$

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Problem 384

The Changs updated their bedroom by purchasing a new lamp for $\$ 89.95$ and a comforter set for $\$ 239.99$ . They pai $6 \frac{3}{5} \%$ sales tax on their purchases. If the Changs paid $\$ 351.72$ total, determine if they paid the correct amount. a. The Changs family paid $\$ 0.33$ too much for their purchases. b. The Changs family paid $\$ 0.99$ too much for their purchases. c. The Changs family paid $\$ 5.94$ too much for their purchases. d. The Changs family paid the correct amount for their purchases.
Please select the best answer from the choices provided

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Problem 385

$x^{2}-675 x+8=0$
If $A$ and $\beta$ are the roots of the quadratic equation $4 x^{2}+x-12=0$ , find the quadratic equation whose root are $a^{3} \beta$ and $a p^{3}$

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Problem 386

An urn contains 10 orange balls and 4 red balls. If Juan chooses 7 balls at random from the urn, what is the probability that he will select 4 orange balls and 3 red balls? Round your answer to 3 decimal places. (If necessary, consult a list of formulas.)

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Problem 387

Question 5 Not yet answered Marked out of 2.00
Flag question Given the following FIR filter: the nonzero $y(n)=0.1 x(n)+0.25 x(n-1)+0.2 x(n-2)$ coeficicients are $b_{0}=0.1 b_{1}=0.25 \text { and } b_{2}=0.2$
Select one: True False

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Problem 388

The marked price of a ceiling fan is 1600 and the shop keeper allows a discount of $6 \%$ on it. Find its selling price.

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Problem 389

TB MC Qu. 4-18 Unquiet Hands, Incorporated borrowed $\$ 30,000$ on...
Unquiet Hands, Incorporated borrowed \ $30,000 on October 1, 2022 at$ 6 \%$ interest with both principal and interest due on September 30, 2023. How much should be in Unquiet Hands, Incorporated's interest payable account at December 31, 2022?
Multiple Choice $\$ 450$ \ $1,800$ \ $0$ $\$ 1,350$

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Problem 390

Check: If $x=-6$ , and $\frac{x}{4}+3=\frac{1}{2}\left(1-\frac{x}{3}\right)$ , then $\begin{aligned} \frac{-6}{4}+3 & =\frac{1}{2}\left(1-\frac{-6}{3}\right) \\ \frac{-6+12}{4} & =\frac{1}{2}+\frac{6}{6} \\ \frac{6}{4} & =\frac{3+6}{6} \\ \frac{3}{2} & =\frac{9}{6} \end{aligned}$ $\frac{3}{2}=\frac{3}{2} \quad($ True statement $)$ ce, $x=-6$ is the solution of $\frac{x}{4}+3=\frac{1}{2}\left(1-\frac{x}{3}\right)$

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Problem 391

3.(a)Simplify $(3+2 i)(2-i)^{\prime}$ (b) If $f(x)=\left\{\begin{array}{cc}x+2, & x<0 \\ 5 & 0 \leq x<5 \\ e^{x} & 5 \leq x<8\end{array} \quad\right.$ Find $\frac{f(0)-f(2)}{f(6)}$ (c) Solve $\ln (x+1)-2 \ln (x-2)=\ln 1$ (d) Find the sum to infinity of $6+2+2 / 3+\ldots$
4. (a) Solve the inequality $\frac{3 x+2}{x-1}<0$ (b)lf $f(x)=\sqrt{\left(\frac{3 x-2}{x}\right)}$ find $\quad f^{-1}(2)$ (c)Solve by Cramer's rule $\begin{array}{l} x-2 y+z=3 \\ 3 x+2 y+z=-3 \\ 2 x-3 y-3 z=-5 \end{array}$ (d) if $\sin \alpha=-4 / 3$ and $\alpha$ is in $3^{\text {rd }}$ quadrant, find $\frac{3 \cos \alpha-\tan \alpha}{\sin ^{2} \alpha}$

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Problem 392

Rational Equation with checking $\text { 1. } \frac{4 x-3 x}{6}=\frac{3 x-4}{4}$

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Problem 393

Use trigonometric substitution to evaluate $I=\int \frac{2}{\sqrt{1-4 x^{2}}} d x$ A. None of the options B. $\frac{1}{4} \sin ^{-1}(2 x)+C$ C. $-\sin ^{-1}(2 x)-3 x+C$ D. $\sin ^{-1}(2 x)+C$ E. $-\sin ^{-1}(2 x)+C$

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Problem 394

ciora College of teacher's education department of natural science electricity and magnetism course SeSc-335) Final exam for summer III degree students out of $50 \%$ in 2016 E.C (use scientific calculator) TIME ALLOWED: $1: 40$ II. Write true if the statement is correct and false if it is incorrect ( 3 point) nse. -1 . The direction of the magnetic field is tangent to the field line at any point in space thle 2 . In series circuit, the total resistance is always less than the smallest resistance in the group. false 3. Magnetic flux through the plane is a maximum when the magnetic field is perpendicular to the plane. false-4. Ohm's law states that both potential difference and current are constant. fase - A single magnetic pole has never been isolated. Iuse -6.The force is attractive the current carrying conductor are opposite direction. THte - 7.Magnetic fields are produced by current-carrying conductors. II. Choose the best answer from the given alternative ( 2 point each) - 4 - 8 .A battery has an emf of 12 v and an internal resistance $0.05 \Omega$ , its terminals are connected to the II. a load resistance of 3 . What is the current circuit? A. $3.1 A$ B. 3.93 C. 9.3 A D. 4.3 A
D-9. Which of the following is true statement? A. Magnetic field has only magnitude. B. Magnetic field $\mathbf{B}$ is inversely proportional to the distance $r$ . C. The force is repulsive if the current carrying wires are parallel. D. The force is attractive if the currents carrying wires are anti parallel. !.total resistance of $80 \Omega$ . What is the power raitingof the heater? C. A. 15 W B. $1.8 \times 10^{3} \mathrm{~W}$ C. 280 W D. $1.5 \times 10^{3} \mathrm{~W}$
11. Which of the following is correct statement, when the direction of current is upward? A. the magnetic field is clockwise C. The magnetic force is into the page - C. - B. the magnetic field is anti clockwise D. all -12. Platinum has a resistance of $50 \Omega$ at $20^{\circ} \mathrm{C}$ . When immersed in a vessel containing melting indium, its resistance increases to $76.8 \Omega$ . What is the melting point of the indium? (Use $\alpha=3.92 \times 10^{-3} \mathrm{C}^{-1}$ ) A. $1 \times 10^{30 C}$ B. $1 \times 10^{2}{ }^{0} \mathrm{C}$ C. $0.1 \times 10^{40} \mathrm{C}$ D. $1 \times 10^{40} \mathrm{C}$
D-13. If the average current flow in a conductor is 4 A and the potential difference is 20 V . What is the average power? A. 50 Watt B. 60 Watt C. 80Watt D. 70 Watt
D-14. When the magnetic forces on moving charges are; A. the force is perpendicular to velocity and magnetic field B. the force is parallel to velocity and magnetic field C. the force is tangential with velocity and magnetic field
D-15. Which of the following is correct statement? A. Magnetic field lines can never cross. C. Magnetic field lines make close loop. B. Magnetic field lines are continuous. D. all $B_{1}$
16. What is the resistance per unit length a 22 gauge Nichrome wire has a radius of 0.321 mm ? (use resistivity of Nichrome $=1.5 \times 10^{-6} \Omega . \mathrm{m}$ ).
Bi A. $3.6 \Omega / m$ B. $4.8 \Omega / \mathrm{m}$ C. $5.6 \Omega / \mathrm{m}$ D. $6.5 \Omega / \mathrm{m}$ A. $-3.2 \times 10^{-13} \mathrm{~N}$ B. $-3.2 \times 10^{-15} \mathrm{~N}$ C. $-3.2 \times 10^{-14} \mathrm{~N}$ I D. $-3.4 \times 10^{-13} \mathrm{~N}$

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Problem 395

The number of days to recapture the project initial outlay if you were given that the payback period equals 1.2 and the days of the year $=360$
Select one: a. 380 days b. None of the above c. 432 days d. 482 days

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Problem 396

If the total cash flows $=22,000$ and the cash flow at the end of the period $=200,000$ then the cash flow at the beginning of the period equals :-
Select one: a. 420,000 b. 178,000 c. None of the above d. 222,000

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Problem 397

If the present value of an investment $=20,000$ . And the Net Present Value $=15,000$ . Then the Profitability Index = Select one: a. None of the above b. 4 c. 1.3 d. 3

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Problem 398

$\qquad$ A. Magnetic field has only magnitude. B. Magnetic field $B$ is inversely proportional to the distance $r$ . C. The force is repulsive if the current carrying wires are parallel. D. The force is attractive if the currents carrying wires are anti parallel.
10. An electric heater is constructed by applying potential difference of 120 V to Nichrome wire has a total resistance of $80 \Omega$ . What is the power raiting of the heater? A. 15 W B. $1.8 \times 10^{3} \mathrm{~W}$ C. 280 W D. $1.5 \times 10^{3} \mathrm{~W}$ $\qquad$
11. Which of the following is correct statement, when the direction of current is upward? A. the magnetic field is clockwise A. Which C. The magnetic force is into the page - 9. B. the magnetic field is anti clockwise D. all $\qquad$ B. the magnetic field is and intersed in a vessel containing melting indium, $50 \Omega$ at $20^{\circ} \mathrm{C}$ . When immersed its resistance increases to $76.8 \Omega$ . What is the melting point of the indium? (Use $\alpha=3.92 \times 10^{-3} \mathrm{C}^{-1}$ ) D. $1 \times 10^{40} \mathrm{C}$

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Problem 399

Solve for $x$ where $x \epsilon[0,2 \pi],,, 2 \cos ^{2} x+\cos x=1$ :Select one $x=\pi / 6,5 \pi / 6, \pi / 2$ non of them $\begin{array}{r} x=\pi / 3, \pi, 5 \pi / 3 \\ x=\pi / 6,5 \pi / 6,3 \pi / 2 \end{array}$

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Problem 400

Use Desmos.com to determine the monthly mortgage payment on a $\$ 500,000$ home with a 30 -year mortgage with $3 \%$ annual interest compounded monthly.

See Solution

Equation

Problem 301

2) 92×75=92 \times 75=92×75=

Problem 302

Problem 303

Problem 304

A line passes through the points (1,2)(1,2)(1,2) and (5,10)(5,10)(5,10). Find its gradient.

Problem 305

Perform the indicated multiplication. 6(−9)6(−9)=\begin{array}{c} 6(-9) \\ 6(-9)= \end{array}6(−9)6(−9)=​

Problem 306

Find the centre whose equation is : 2x2+2y2−3x+2y+1=02 x^{2}+2 y^{2}-3 x+2 y+1=02x2+2y2−3x+2y+1=0

Problem 307

Tatenda has a circle with an equation x2+y2−8x+4y+4=0x^{2}+y^{2}-8 x+4 y+4=0x2+y2−8x+4y+4=0. Find the coordinates of the centre of this circle.

Problem 308

Show that the line passing through the points A(6,4)A(6,4)A(6,4) and B(7,11)B(7,11)B(7,11) is parallel to the line passing through P(0,0)P(0,0)P(0,0) and Q(2,14)Q(2,14)Q(2,14).

Problem 309

Solve the Absolute Value Equation T2ES1Solve each equation. 1) ∣x−3∣=5|x-3|=5∣x−3∣=5 2) ∣x+7∣=2|x+7|=2∣x+7∣=2 3) ∣23−x∣=1\left|\frac{2}{3}-x\right|=1∣∣​32​−x∣∣​=1Solution === Solution === Solution ===

Problem 310

A line passes through the points (1,2)(1,2)(1,2) and (5,10)(5,10)(5,10). Find its gradient.

Problem 311

5) ∣−x+9∣=3|-x+9|=3∣−x+9∣=3Solution ===

Problem 312

Find the coordinates of PPP that represent the weighted average for the given set of points with the given weights. - A has a weight of 3 . - BBB has a weight of 2 .

Problem 313

The point KKK is the midpoint of JL‾\overline{J L}JL. Find the location of JJJ.Location of JJJ □\square□

Problem 314

Solve for yyy. 4+3y=104+3 y=104+3y=10Simplify your answer as much as possible. y=y=y= □\square□

Problem 315

Find the real roots of the equation by factorin x2+x−56=0x^{2}+x-56=0x2+x−56=0

Problem 316

The point XXX is the midpoint of WY‾\overline{W Y}WY. Find the location of YYY.Location of YYY : □\square□

Problem 317

Solve for yyy. 2(3y+7)=682(3 y+7)=682(3y+7)=68Simplify your answer as much as possible. y=y=y=

Problem 318

Solve for xxx 3x+144=2\frac{3 x+14}{4}=243x+14​=2Simplify your answer as much as possible. x=x=x= □\square□

Problem 319

4. $327.45\$ 327.45$327.45 subtracted from $572.98\$ 572.98$572.98 is closest to which of the following? a. $240.99\$ 240.99$240.99 b. $245.57\$ 245.57$245.57 c. $247.18\$ 247.18$247.18 d. $248.99\$ 248.99$248.99 Mark to review later...

Problem 320

5. Solve the following equation: (−175+136)+(64−21)=(-175+136)+(64-21)=(−175+136)+(64−21)= a. -82 b. -4 c. 4 d. 82 Mark to review later...

Problem 321

Problem 322

2. A package of crackers weighing 8.2 ounces costs $2.87\$ 2.87$2.87. What is the cost per ounce of crackers?

Problem 323

2. There are 12 inches in 1 foot and 5,280 feet in 1 mile. Elena ran 2122 \frac{1}{2}221​ miles. a. How many feet is that? b. How many inches is that?

Problem 324

Problem 325

Problem 326

Problem 327

−4∣8−5n∣=13-4|8-5 n|=13−4∣8−5n∣=13

Problem 328

Lucas, who is single, received $8,000\$ 8,000$8,000 of social security benefits. His AGI before the social security benefits was $15,000\$ 15,000$15,000. He also had $200\$ 200$200 of tax-exempt interest. What is the amount of taxable social security benefits?

Problem 329

Problem 330

Find the sum or difference. Simplify if necessary, * 59−12=\frac{5}{9}-\frac{1}{2}=95​−21​= 6/76 / 76/7 4/74 / 74/7 4/184 / 184/18 1/181 / 181/18 None of the above

Problem 331

Solve the following problem It was 13∘C13^{\circ} \mathrm{C}13∘C yesterday, but the temperature changed by −18.6∘-18.6^{\circ}−18.6∘ overnight. What is the temperature now? (1 point) □\square□ C

Problem 332

What is the first step when solving the equation below for xxx ? 4x−0.2=1.94 x-0.2=1.94x−0.2=1.9

Problem 333

Problem 334

Escriba la ecuación de la línea en forma pendiente-intersección totalmente simplificada.

Problem 335

x−5=−2x-5=-2x−5=−2

Problem 336

Graph the equation by plotting points. y=6x−9y=6 x-9y=6x−9Use the graphing tool on the right to graph the equation. Click to enlarge graph

Problem 337

Problem 338

4) There are 2 apples to every 1 banana in the bowl. How many apples for 7 bananas?

Problem 339

There are 4 jacks in a deck of 52 cards. What is the probability of drawing a Jack from a deck of cards, putting it aside, and then drawing another Jack?

Problem 340

Problem 341

7) For every one sweot 1 eat you cat three. We both ate a total of 32 sweets. How many sweets did I eat?

Problem 342

Leveled Practice for 1-3, use the multiplicatior1. 27÷3=27 \div 3=27÷3= ? 3x=273 x=273x=272. 63÷9=63 \div 9=63÷9= ?So, 27÷3=27 \div 3=27÷3= 9x=639 x=639x=63 So. 63÷9=63 \div 9=63÷9=

Problem 343

Solve for all values of xxx by factoring. x2−2x−5=−5x^{2}-2 x-5=-5x2−2x−5=−5

Problem 344

Nasir has an annual salary of $64,000\$ 64,000$64,000, and his company pays him iwice a month. What is the gross income per paycheck that Nasir receives? A. $1230.77\$ 1230.77$1230.77 B. $10,666.67\$ 10,666.67$10,666.67 C. $2666.67\$ 2666.67$2666.67 D. $5333.33\$ 5333.33$5333.33

Problem 345

2) $92 \times 75=$

A line passes through the points $(1,2)$ and $(5,10)$ . Find its gradient.

Perform the indicated multiplication. $\begin{array}{c} 6(-9) \\ 6(-9)= \end{array}$

Find the centre whose equation is : $2 x^{2}+2 y^{2}-3 x+2 y+1=0$

Tatenda has a circle with an equation $x^{2}+y^{2}-8 x+4 y+4=0$ . Find the coordinates of the centre of this circle.

Show that the line passing through the points $A(6,4)$ and $B(7,11)$ is parallel to the line passing through $P(0,0)$ and $Q(2,14)$ .

Solve the Absolute Value Equation T2ES1
Solve each equation. 1) $|x-3|=5$ 2) $|x+7|=2$ 3) $\left|\frac{2}{3}-x\right|=1$
Solution $=$ Solution $=$ Solution $=$

A line passes through the points $(1,2)$ and $(5,10)$ . Find its gradient.

5) $|-x+9|=3$
Solution $=$

Find the coordinates of $P$ that represent the weighted average for the given set of points with the given weights. - A has a weight of 3 . - $B$ has a weight of 2 .

The point $K$ is the midpoint of $\overline{J L}$ . Find the location of $J$ .
Location of $J$ $\square$

Solve for $y$ . $4+3 y=10$
Simplify your answer as much as possible. $y=$ $\square$

Find the real roots of the equation by factorin $x^{2}+x-56=0$

The point $X$ is the midpoint of $\overline{W Y}$ . Find the location of $Y$ .
Location of $Y$ : $\square$

Solve for $y$ . $2(3 y+7)=68$
Simplify your answer as much as possible. $y=$

Solve for $x$ $\frac{3 x+14}{4}=2$
Simplify your answer as much as possible. $x=$ $\square$

4. $\$ 327.45$ subtracted from $\$ 572.98$ is closest to which of the following? a. $\$ 240.99$ b. $\$ 245.57$ c. $\$ 247.18$ d. $\$ 248.99$ Mark to review later...

5. Solve the following equation: $(-175+136)+(64-21)=$ a. -82 b. -4 c. 4 d. 82 Mark to review later...

2. A package of crackers weighing 8.2 ounces costs $\$ 2.87$ . What is the cost per ounce of crackers?

2. There are 12 inches in 1 foot and 5,280 feet in 1 mile. Elena ran $2 \frac{1}{2}$ miles. a. How many feet is that? b. How many inches is that?

$-4|8-5 n|=13$

Lucas, who is single, received $\$ 8,000$ of social security benefits. His AGI before the social security benefits was $\$ 15,000$ . He also had $\$ 200$ of tax-exempt interest. What is the amount of taxable social security benefits?

Find the sum or difference. Simplify if necessary, * $\frac{5}{9}-\frac{1}{2}=$ $6 / 7$ $4 / 7$ $4 / 18$ $1 / 18$ None of the above

Solve the following problem It was $13^{\circ} \mathrm{C}$ yesterday, but the temperature changed by $-18.6^{\circ}$ overnight. What is the temperature now? (1 point) $\square$ C

What is the first step when solving the equation below for $x$ ? $4 x-0.2=1.9$

$x-5=-2$

Graph the equation by plotting points. $y=6 x-9$
Use the graphing tool on the right to graph the equation. Click to enlarge graph

Leveled Practice for 1-3, use the multiplicatior
1. $27 \div 3=$ ? $3 x=27$
2. $63 \div 9=$ ?
So, $27 \div 3=$ $9 x=63$ So. $63 \div 9=$

Solve for all values of $x$ by factoring. $x^{2}-2 x-5=-5$

Nasir has an annual salary of $\$ 64,000$ , and his company pays him iwice a month. What is the gross income per paycheck that Nasir receives? A. $\$ 1230.77$ B. $\$ 10,666.67$ C. $\$ 2666.67$ D. $\$ 5333.33$

$-10(8.511)=$

5. $4 x^{2}-15=85$

Milena's take-home pay is $\$ 1200$ a month. $12 \%$ of her take-home pay is spent on her cable bill. How much is Milena's monthly cable bill? A. $\$ 120$ B. $\$ 144$ C. $\$ 104$ D. $\$ 14.4$

What is the difference? $-43-(-15)$
Enter your answer in the box. $\square$

Darius lives in Ohio and pays $5.5 \%$ in sales tax. If he just bought a sweatshirt that cost $\$ 24$ , what was the total amount he paid for the sweatshirt, including sales tax? A. $\$ 25.32$ B. $\$ 22.68$ C. $\$ 37.20$ D. $\$ 13.20$

Skill Practice 3 Write an equation of the line passing through the point $(-3,2)$ and parallel to the line defined by $x+3 y=6$ . Write the answer in slope-intercept form and in standard form. Answer $y=-\frac{1}{3} x+1 ; x+3 y=3$

A technical machinist is asked to build a cubical steel tank that will hold 525 L of water. Calculate in meters the smallest possible inside length of the tank. Round your answer to the nearest 0.01 m . $\square$ m

牙病的学生人数占全校人数的 $12 \%$ , 豌豆学院共有 700 名学生, 有牙病的学生有 $\square$ 名。

芝麻的出油率约为 $45 \%$ ，豌豆芝麻厂椎出 675 kg 芝麻油，用了 $\square$ kg芝麻。

Solve for $u$ . $-\frac{1}{2} u-\frac{6}{7}=-\frac{4}{5}$
Simplify your answer as much as possible.

Evaluate the limit, if it exists. If a limit does not exist, type "DNE". $\lim _{t \rightarrow-1}(t+2)^{3}\left(t^{2}+1\right)^{5}$
Limit: $\square$ $\square$
Submit answer Next item

$2 \frac{3}{8}+7 \frac{5}{12}=$

0/1 point
A CRNA placed 4.8 cc of a medication into an IV bag. The stock from which the CRNA took the medication from was in vial having a label that says: 122 mg per 14 mL . Given this information, how many cg of medication are inside IV bag? Report the answer to the nearest tenth.

Write the standard form of the equation of the specified circle. Center: $(5,-8)$ ; tangent to the $y$ -axis $\square$

The point $(-10,22)$ is on the terminal side of the angle and $x=-10, y=22$ . First find the value of $r$ . $\begin{aligned} r & =\sqrt{x^{2}+y^{2}} \\ & =\sqrt{ }+484 \\ & =\sqrt{ } \end{aligned}$

Find the limit, if it exists. (If an answer does not exist, enter DNE.) $\lim _{x \rightarrow \infty} \frac{\sqrt{x+5 x^{2}}}{3 x-1}$

3. If $x^{2}+4=29$ , then $x^{2}-4=8$ A. 5 B. $\sqrt{21}$ C. 21 D. 25 I. 33

اگَر $\alpha$ و $\beta$ جوابهاى معادلهُ ه مقدار
IV 1 १ 11 $\square$ 19 $\mu$