Math

Problem 401

Elizabeth needs 92/392/3 feet of packaging tape. Each roll has 45/645/6 feet of tape. How many rolls should Elizabeth buy?

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Problem 402

Multiply the two binomials (3x9)(4x7)(3x-9)(4x-7) using the FOIL or BOX method.

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Problem 403

Graph the interval {xRx>8}\{x \in \mathbb{R} | x > 8\} on the number line.

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Problem 404

Calculate simple interest for given principal, rate, and time values.
10001000 at 7%7\% for 33 years 25002500 at 4.5%4.5\% for 3030 months 750750 at 2.8%2.8\% for 7878 weeks

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Problem 405

Given congruent triangles ABCDEF\triangle ABC \cong \triangle DEF with AB=4x5AB=4x-5, DE=67DE=67, C=5y+7\angle C=5y+7, and F=57\angle F=57, find xx and yy.

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Problem 406

Solve for the value of jj that satisfies the equation (7j9)(8j+9)=0(7j-9)(8j+9)=0.

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Problem 407

Find the algebraic expression for the sum of 5 and xx multiplied by 2, then subtracted from 13.

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Problem 408

Express k28k+20k^2 - 8k + 20 as a(k+b)2+ca(k+b)^2 + c. Prove the equation x2kx+2k=5x^2 - kx + 2k = 5 has real, distinct roots for all real kk.

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Problem 409

Solve the equation 74=8x74=8x and select the correct answer from the options provided.

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Problem 410

Identify the scalar quantity among force, mass, displacement, and velocity.

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Problem 411

After 100 hours, the fractional part of the battery BB still operating is 50.01100=0.3685^{-0.01 \cdot 100} = 0.368.

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Problem 412

Solve for xx and yy in the linear equation 12y=8x48312y = \frac{8x - 48}{3}.

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Problem 413

Calculate the following expressions: a) 21/40.751/6+221 / 4-0.75-1 / 6+2, b) 61/6+8+73/461 / 6+8+73 / 4, c) 81/23/41.7581 / 2-3 / 4-1.75, d) 0.65+5/29/20.65+5 / 2-9 / 2.

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Problem 414

Find the value of mm given the equation n=6+mn=6+m.

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Problem 415

Solve the quadratic equation 49x228x=449 x^{2} - 28 x = -4.

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Problem 416

Solve the quadratic equation z210z=50z^2 - 10z = -50.

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Problem 417

Solve for qq by completing the square: q223q=21q^{2} - 23q = 21. Write the solution as an integer, proper/improper fraction in simplest form, or decimal rounded to the nearest hundredth.

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Problem 418

Rewrite the power 343^{4} as repeated multiplication, then evaluate the expression.

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Problem 419

Find the zeros of the polynomial f(x)=x3x+2x22f(x) = x^{3} - x + 2x^{2} - 2 given that (x1)(x - 1) is a factor.

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Problem 420

Solve for xx in the equation 2(x+2)=9x+112(x+2)=9x+11.

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Problem 421

Identify the property that justifies each statement: a) If 2x=y2x=y and y=7y=7, then 2x=72x=7. b) If XP\angle X \cong \angle P and PD\angle P \cong \angle D, then XD\angle X \cong \angle D. c) mDEF=mDEFm \angle DEF=m \angle DEF. d) If ST=XYST=XY, then XY=STXY=ST.

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Problem 422

Solve for xx in the quadratic equation (x+7)249=0(x+7)^2 - 49 = 0. The solutions are x=14,0x = -14, 0.

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Problem 423

Simplify the expression 0.3(3g0.2)+0.4(0.8g+10)-0.3(3g-0.2)+0.4(-0.8g+10).

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Problem 424

Solve the system of equations: 12x=1821=y7\frac{12}{x}=\frac{18}{21}=\frac{y}{7}

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Problem 425

Solve for xx in the equation ln(x2)3=9\frac{\ln (x-2)}{3}=9.

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Problem 426

Solve the linear equation y+2=16(x4)y + 2 = \frac{1}{6}(x - 4) for the value of yy.

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Problem 427

An art teacher has 701270 \frac{1}{2} pounds of clay for 20 students. How much clay does each student get? Write the answer as a mixed number.

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Problem 428

Solve for the value of WW given the equation 28=49W28 = -\frac{4}{9}W.

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Problem 429

Solve the equation 13=4.6(142p)-13=-4.6(14-2p), and round the answer to the nearest hundredth.

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Problem 430

Evaluate the expression (5+4)(5+33)(5+4) \cdot (5+3 \cdot 3) using the correct order of operations.

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Problem 431

Solve for ww in the equation 3+5w=273+5w=-27. Simplify the solution for ww.

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Problem 432

Solve the system of linear equations x2y=4x - 2y = 4 and 2x4y=42x - 4y = -4.

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Problem 433

Solve the inequality x2+5x8x3x^{2} + 5x - 8 \geq x - 3 and express the solution set in interval notation.

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Problem 434

Shawna needs to make cupcakes and muffins using at least 460g of sugar and at most 970g of flour. A cupcake requires 3535g of sugar and 5050g of flour, while a muffin requires 3030g of sugar and 6565g of flour. Write inequalities to represent the conditions based on sugar and flour.

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Problem 435

Find the value of 1.6×1050.2×102\frac{1.6 \times 10^{5}}{0.2 \times 10^{2}}. Options: A) 0.8×1030.8 \times 10^{3} B) 8×1038 \times 10^{3} C) 0.8×1070.8 \times 10^{7} D) 8×1078 \times 10^{7}

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Problem 436

Find the general term of an arithmetic sequence given the 50th term is 238 and the 93rd term is 539.

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Problem 437

Solve the inequality 2(3c+3)<6c+92(3c+3)<6c+9 where c>1c>1. Determine the solution set.

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Problem 438

Solve a system of linear equations with coordinates for the solutions.

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Problem 439

Find the height hh of a triangle given its area AA and base bb, where A=12bhA = \frac{1}{2} b h. Choose the correct formula for hh.

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Problem 440

Solve the equation x3x+5+6xx+3=x2+35x+16x2+8x+15\frac{x-3}{x+5}+\frac{6x}{x+3}=\frac{x^2+35x+16}{x^2+8x+15} and state the excluded values of xx.

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Problem 441

Solve for tt in the equation 9=t+4s-9=t+4s. Options: a) t=94st=-9-4s, b) t=9+s4t=\frac{-9+s}{4}, c) t=9s4t=\frac{-9-s}{4}, d) t=9s4t=-9-s-4.

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Problem 442

Priya's equation 5+0.5w=4+0.75w5+0.5w=4+0.75w represents a situation. Find the meaning of the solution w=4w=4.

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Problem 443

Find the value of xx in the equation 82x1=168^{2x-1}=16, rounded to the nearest hundredth.

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Problem 444

Find equivalent fractions, decimals, and percents. Simplify fractions. 11 has decimal 1.251.25 and percent ??. 35\frac{3}{5} has decimal ?? and percent ??. ?? has decimal ?? and percent 5%5\%.

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Problem 445

Find the value of ss that solves the equation 30=6(s5)6-30=6(s-5)-6. The solutions are s=0s=0 and s=1s=1.

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Problem 446

Find the solution points for the equation X+Y=6X + Y = 6 and select the correct plot that passes through them.

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Problem 447

Select the best volume of a cord of wood in cubic feet. 4 ft ×4 ft ×8 ft =128 cu. ft.4 \text{ ft } \times 4 \text{ ft } \times 8 \text{ ft } = 128 \text{ cu. ft.}

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Problem 448

Anton watched xx movies in 2019. If Michael watched 14\frac{1}{4} as many movies as Anton, which approximates Michael's movies?

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Problem 449

Differentiate e3x(sinx+2cosx)e^{3x}(\sin x + 2\cos x) with respect to xx.

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Problem 450

Solve the linear equation 25n+13=2725n + 13 = -27 for the unknown variable nn.

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Problem 451

Solve for yy in the equation 4=y+234=\frac{y+2}{3}.

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Problem 452

Solve for ww in the equation 4.5=1.5w4.5 = 1.5w, then check your solution.

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Problem 453

Find the value of 935493 - 54.

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Problem 454

Determine if the linear function f(x)=29xf(x) = 2 - 9x is increasing, decreasing, or constant.

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Problem 455

Solve the expression (144)×2(14-4) \times 2 and identify the correct answer among 14414-4, 4×24 \times 2, and 14×214 \times 2.

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Problem 456

Find the values of xx that satisfy x3=6|x-3|=6.

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Problem 457

Solve the exponential equation 3x=813^{x}=81.

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Problem 458

Solve the linear equation 34z+1=40-\frac{3}{4} z + 1 = -40 for the variable zz.

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Problem 459

Find the value of yy when x=1x=1 in the equation y=3x+2.5y=-3x+2.5.

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Problem 460

Find the equation of the line passing through the points (6,20)(6, 20) and (8,42)(8, 42).

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Problem 461

Evaluate the quadratic expression a2+5a+1a^{2} + 5a + 1 when a=4a = -4.

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Problem 462

Find the probability that a random sample of size n=61n=61 drawn from a normal distribution with μ=176.7\mu=176.7 and σ=57.5\sigma=57.5 has a mean between 166.4166.4 and 187.7187.7.

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Problem 463

Solve for xx using addition and multiplication principles, given 73x+13=9-\frac{7}{3} x+\frac{1}{3}=-9.

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Problem 464

Eliminate x-terms in system: 3x+5y=53x+5y=5, multiply by ? on both sides; 2x8y=6-2x-8y=-6, multiply by ? on both sides.

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Problem 465

Find the sum 7,167+4,1077,167 + 4,107 and difference 7,1674,1077,167 - 4,107 of two numbers.

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Problem 466

Find the least common denominator (LCD) of the set of fractions 12,23,34\frac{1}{2}, \frac{2}{3}, \frac{3}{4}.

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Problem 467

A machine makes 4 toy cars every 1/3 hour. How many toy cars does it make per hour? Draw a model to represent this.

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Problem 468

How many times is 8×1058 \times 10^{5} larger than 4×1034 \times 10^{3}? 2,000

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Problem 469

Find the issue with the equation 4+(10/5)=624+(10 / 5)=6-2. The correct answer is (C) The two sides do not evaluate to the same value.

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Problem 470

Find the rational numbers in the set {157,2,1,49,1,3,3.25}\left\{-\frac{15}{7},-\sqrt{2}, \sqrt{1}, \sqrt{\frac{4}{9}}, 1, \sqrt{3}, 3.25\right\}.

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Problem 471

Find the value of xx that satisfies the equation x12=4x-12=-4.

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Problem 472

Calculate the percentage decrease in a town's population, given the population was 15600 in 1990 and is now 11420.

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Problem 473

Solve for ff where f+26f+2 \geq 6.

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Problem 474

How many pieces of candy were in a bag divided evenly among 23 students, if each student received 4 pieces? Let pp represent the total pieces.

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Problem 475

Evaluate the expression 35x3 \cdot 5^{x} when x=2x = 2.

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Problem 476

Solve the linear equation 3x+7y=153x + 7y = 15 for either xx or yy.

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Problem 477

Solve for xx in the equation 1+65x=31 + \frac{6}{5x} = 3.

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Problem 478

Find the lengths of PNPN and QPQP where PP is the centroid of LMN\triangle LMN and QN=9QN=9.

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Problem 479

An online store awards the same number of reward points per purchase. Kevin made 5 purchases and earned 8.5 points. Find the number of points per purchase. (a) Let nn be the points per purchase. The equation is: 5n=8.55n = 8.5 (b) Solve for nn to find the points per purchase.

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Problem 480

Find the linear equation y=mx+by = mx + b describing a baby's weight, where the baby weighs 7 lbs at birth and gains 5 lbs every 2 months.

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Problem 481

Solve for uu in the equation 6u28=2(u6)-6 u-28=-2(u-6). Simplify the solution.

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Problem 482

Find the product of 4.12 and 2.52.5.

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Problem 483

Fill in the missing values in the matrix equation [100010001][000]=[???]\begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} 0 \\ 0 \\ 0 \end{bmatrix} = \begin{bmatrix} ? \\ ? \\ ? \end{bmatrix}.

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Problem 484

Find the correct number line for the expression 31.5-3-1.5.

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Problem 485

Find the value of xx if the numbers 13, 18, and xx have a mean of 18.

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Problem 486

Solve for xx when g(x)=5x+2=7g(x) = 5x + 2 = 7.

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Problem 487

Solve the exponential equations. Verify solutions using graphing technology. a) 43x=8x34^{3x} = 8^{x-3} b) 27x=92x327^{x} = 9^{2x-3} c) 1252y1=25y+4125^{2y-1} = 25^{y+4} d) 162k3=32k+316^{2k-3} = 32^{k+3}

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Problem 488

Find the polynomials in standard form. Choose all correct options. 5x5+4x4+12x323x+155x^5 + 4x^4 + 12x^3 - 23x + 15, 2x412x2+5x92x^4 - 12x^2 + 5x - 9, 53x5 - 3x, 4x2+12x13x34x^2 + 12x - 13x^3.

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Problem 489

Find the value of dd given the equation d2=21d^{2}=21. Express the solution in simplest radical form.

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Problem 490

Find the equation of the parabola that passes through the points (3,5),(4,7)(3,5), (4,7), and (5,5)(5,5).

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Problem 491

Plot -5.5 on number line and find the sum of -5.5 and 3.7.
5.5+3.7=-5.5 + 3.7 =

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Problem 492

Find the derivative of ln(x2)\ln \left(\frac{x}{2}\right).

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Problem 493

The oven's temperature, FF (in ^{\circ}F), increases by 3030 per minute according to the line of best fit F=30t+70F=30t+70. What does the slope of 3030 represent?

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Problem 494

Solve absolute value equations: 1) 4x=x25|4x| = x^2 - 5, 2) 2x2=5x+32x^2 = |5x + 3|, 3) 2(x4)25=3|2(x-4)^2 - 5| = 3, 4) 0=x22x340 = |x^2 - 2x - 3| - 4.

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Problem 495

Find the error interval for a number xx rounded to 1 significant figure as 0.080.08.

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Problem 496

Find the exact value of sin2x\sin 2x given cosx=35\cos x = \frac{3}{5} and 0<x<π20 < x < \frac{\pi}{2}.

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Problem 497

Solve the linear equation 7(m12)=5m7(m-12)=5m for the value of mm.

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Problem 498

Find the derivative k(x)k'(x) of k(x)=4x2+10x36(4x37x2)k(x) = \sqrt[6]{-4 x^{2} + 10 x^{3}} \cdot (4 x^{3} - 7 x^{2}).

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Problem 499

Find the best decimal approximation for 62\sqrt{62}.

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Problem 500

Rewrite 134451 \frac{3}{4} - \frac{4}{5} using twentieths and simplify.

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