Algebra

Problem 2201

45. 11+i11i\frac{1}{1+i}-\frac{1}{1-i}

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Problem 2202

Find the domain of the given function. F(x)=x9x3+7xF(x)=\frac{x-9}{x^{3}+7 x}

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Problem 2203

Determine whether the equation defines yy as a function of xx. y2=9x2y^{2}=9-x^{2}

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Problem 2204

Question 5 of 10 This quiz: 10 point(s) possible This question: 1 point(s) possible Submit quiz
A telephone company offers a monthly cellular phone plan for $39.99\$ 39.99. It includes 350 anytime minutes plus $0.25\$ 0.25 per minute for additional minutes. The following function is used to compute the monthly cost for a subscriber, where x is the number of anytime minutes used. C(x)={39.99 if 0<x3500.25x47.51 if x>350C(x)=\left\{\begin{array}{ll} 39.99 & \text { if } 0<x \leq 350 \\ 0.25 x-47.51 & \text { if } x>350 \end{array}\right.
Compute the monthly cost of the cellular phone for use of the following anytime minutes. (a) 235 (b) 375 (c) 351

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Problem 2205

Parte 2: Factoriales en Expre- Parte 3: Problemas Aplicados siones Numéricas
Ejercicio 5: Simplifica la siguiente expresión: (5+2)!5!\frac{(5+2)!}{5!}
Opciones: - a) 42 - b) 56 - c) 30 - d) 20
Ejercicio 6: Simplifica la siguiente expresión: 8!(83)!\frac{8!}{(8-3)!}
Opciones: - a) 336 - b) 1120 - c) 672 - d) 40320
Ejercicio 7: Simplifica la siguiente expresión: 11!4!9!6!\frac{11!\cdot 4!}{9!\cdot 6!}
Opciones: - a) 2 - b) 16 - c) 48 - d) 64 Ejercicio 8: Simplifica la siguiente expresión: 12!(124)!4!\frac{12!}{(12-4)!\cdot 4!} ¿Qué representa esta expresión en términos de combinaciones?
Opciones: - a) 12345 - b) 20 - c) 135 - d) 148
Ejercicio 9: Simplifica la siguiente expresión: 10!6!8!8!\frac{10!\cdot 6!}{8!\cdot 8!}
Opciones: - a) 72 - b) 16 - c) 15 - d) 21
Ejercicio 10: Simplifica la siguiente expresión y calcula su valor: (4+3)!(41)!3!\frac{(4+3)!}{(4-1)!\cdot 3!}
Opciones: - a) 40 - b) 56 - c) 70 - d) 21

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Problem 2206

Write the function whose graph is the graph of y=x3\mathrm{y}=\mathrm{x}^{3}, but is vertically stretched by a factor of 3 .

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Problem 2207

Let f(x)=(x+5)2f(x)=(x+5)^{2} Find a domain on which ff is one-to-one and non-decreasing. \square Find the inverse of ff restricted to this domain. f1(x)=f^{-1}(x)= \square Question Help: Video

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Problem 2208

Solve x82|x-8| \leq 2 State your answer as a compound inequality AxBA \leq x \leq B :
State your answer in interval notation [A,B][A, B] : \square

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Problem 2209

Solve: 4x+8<1|4 x+8|<1 Give your answer using interval notation. \square

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Problem 2210

Write an equation for the relationship in the table. \begin{tabular}{|c|c|c|c|c|} \hlinexx & 1 & 2 & 3 & 4 \\ \hlineyy & 5 & 10 & 15 & 20 \\ \hline \end{tabular}
Enter the correct answer in the box. \square Back 1 2 3 Done

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Problem 2211

Q1. (5 points) Consider the open sentence Q(a,b)Q(a, b) There exists a natural number mm such that am2a+3ba m \leq-2 a+3 b.
For each of the following, determine whether it is an open sentence or a statement. If it is an open sentence, indicate the variable(s) it depends on. If it is a statement, give its truth value. No justification is necessary. (a) Q(1,1)Q(1,-1). (b) For all negative integers a,Q(a,b)a, Q(a, b). (c) For all negative integers aa and all positive integers b,Q(a,b)b, Q(a, b).

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Problem 2212

Solve: 4x25|4 x-2| \geq 5 Give your answer as an interval using whole numbers, proper fractions or improper fractions. \square

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Problem 2213

Finding the asymptotes of a rational function: Constant over linear
Graph all vertical and horizontal asymptotes of the rational function. f(x)=54x10f(x)=\frac{5}{4 x-10}

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Problem 2214

8=x+112-8=\frac{x+11}{-2}

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Problem 2215

813x=168-\frac{1}{3} x=16

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Problem 2216

Solve the inequality. Then graph the solution and give interval notation. 118x+5<37-11 \leq-8 x+5<37
Clear All \square Draw: \square - 0
Interval notation for the above graph and inequality is \square

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Problem 2217

At the beginning of the year, Adrian's savings account balance was $28\$ 28. Each week, he deposits another $15\$ 15 into that account, and he doesn't spend any of his savings. Is his savings account balance proportional to the number of weeks since the start of the year?
Choose 1 answer: (A) Yes (B) No

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Problem 2218

1332x=3713-\frac{3}{2} x=37

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Problem 2219

Natasha has a job putting letters in envelopes to be mailed. In 1 hour she put 42 letters in envelopes.
Which equation best represents yy, the total number of letters Natasha puts in envelopes in xx hours if she continues at this rate?
F x=y+42x=y+42 G y=x+42y=x+42 H x=42yx=42 y J y=42xy=42 x

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Problem 2220

At the gas station, gas usually costs $3\$ 3. This month, there's a sale: for every drink you purchase you save $0.20\$ 0.20 on gas.
Assuming your sale savings are less than the cost of your gas, are your total savings on gas proportional to the number of drinks you purchase?
Choose 1 answer: (A) Yes (B) No

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Problem 2221

Find the sum of the given vectors. a=(2,3,4),b=(0,0,6)a+b=\begin{aligned} & a=(2,3,-4), \quad b=(0,0,6) \\ a+b= & \end{aligned}
Illustrate geometrically: ZZ

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Problem 2222

Which equation represents the relationship between the xx-values and the yy-values in the table? \begin{tabular}{|r|c|} \hlinexx & yy \\ \hline 0 & 4 \\ \hline 2 & 16 \\ \hline 4 & 28 \\ \hline 6 & 40 \\ \hline 10 & 64 \\ \hline \end{tabular}
A y=2x+12y=2 x+12 B y=4x+6y=4 x+6 C y=2x+4y=2 x+4 D y=6x+4y=6 x+4 Hint: Find the slope, then find the yy intercept.

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Problem 2223

Maël mixes 15 milliliters (mL)(\mathrm{mL}) of bleach with 3.75 liters (L)(\mathrm{L}) of water to make a sanitizing solution for a daycare. The amounts of bleach and water always have to be proportional when he makes sanitizing solution.
Which of the following could be combinations of volumes of bleach and water for Maël's sanitizing solution?
Choose 3 answers: A 12 mL bleach and 3 L water B 6 mL bleach and 1.5 L water c. 3 mL bleach and 0.75 L water (D) 20 mL bleach and 5.5 L water
E 11 mL bleach and 3.75 L water

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Problem 2224

7(x2)=427(x-2)=42

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Problem 2225

2(2y10)=202(2 y-10)=20

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Problem 2226

4(z2)=204(z-2)=20

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Problem 2227

Co nortice Complete this assessment to review what you've learned. It will not count tow
Rewrite the expression 3x+(2y+z)3 x+(2 y+z) using the Associative Property of Addition. (1 point) \square
Check answer Romaining Attempts : 3

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Problem 2228

Question
Which equation has the solution x=7x=7 ?
Answer 4x3=254 x-3=-25 5x4=315 x-4=31 8x+8=1048 x+8=104 6x4=56 x-4=5

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Problem 2229

5y+10=455 y+10=45

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Problem 2230

Which equation has the solution x=3x=3 ?
Answer 2x2=42 x-2=4 7x7=147 x-7=-14 6x4=866 x-4=86 8x+2=468 x+2=46

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Problem 2231

10w4=8610 w-4=86

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Problem 2232

5x5=3x+5-5 x-5=-3 x+5
Attempt 1 out of 2

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Problem 2233

Copperbelt Universit School of Built Environm Test 1 (2024) ES 150 Mathematics
1. Resolve 5x2x(x+2)\frac{5 x-2}{x(x+2)} into partial fractions
2. Expand (4+x)(3+x)5(4+\mathrm{x})(3+x)^{5} (Use binomial theorem)
3. Solve the inequality (x1)(3x+2)<0(x-1)(3 x+2)<0
4. Find the value of x , if 32x+1=4x33^{2 x+1}=4^{x-3}

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Problem 2234

Assume that between 2007 and 2010, 'messaging' became increasingly popular. The number of messages (in thousands) reported by a microblogging company can be modeled by T(x)=16,622x120,632T(x)=16,622 x-120,632, where xx is the number of years after 2000 . a. What is the slope of the graph of this function? b. Interpret the slope as a rate of change. a. The slope of the graph of this function is \square (Simplify your answer.)

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Problem 2235

Identify an algebraic equation you can use to find the measure of each angle based on the given description. Then find the measure of each angle.
The measure of one angle is 33^{\circ} more than 12\frac{1}{2} the measure of its supplement. x+(12x+3)=180x+\left(\frac{1}{2} x+3\right)=180 x+(12x+3)=90x+\left(\frac{1}{2} x+3\right)=90 x+(12x3)=180x+\left(\frac{1}{2} x-3\right)=180 x+(12x3)=90x+\left(\frac{1}{2} x-3\right)=90
The measure of the smaller angle is \square .
The measure of the larger angle is \square .

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Problem 2236

A motorboat can maintain a constant speed of 27 miles per hour relative to the water. The boat makes a trip upstream to a certain point in 44 minutes; the return trip takes 22 minutes. What is the speed of the current?

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Problem 2237

[1] 5. True or False: 2a=2a\sqrt{2 a}=2 \sqrt{a} for all a,b>0a, b>0. (a) TRUE. (b) FALSE

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Problem 2238

The percent of births to teenage mothers that are out-of-wedlock can be approximated by a linear function of the number of years after 1954. The percent was 19 in 1974 and 76 in 2010. Complete parts (a) through (c). (a) What is the slope of the line joining the points (20,19)(20,19) and (56,76)(56,76) ?
The slope of the line is \square . (Simplify your answer. Round to two decimal places as needed.)

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Problem 2239

A company will need $25,000\$ 25,000 in 8 years for a new addition. To meet this goal, the company deposits money in an account today that pays 9%9 \% annual interest compounded quarterly. Find the amount that should be invested to total $25,000\$ 25,000 in 8 years.
The company should invest \ \square$ (Do not round until the final answer. Then round to the nearest dollar as needed.)

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Problem 2240

The length of a rectangle is 5 meters less than twice the width. If the area of the rectangle is 375 square meters, find the dimensions.

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Problem 2241

18. a2bb3a^{2} b-b^{3}
19. 98+2x2-98+2 x^{2}

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Problem 2242

skipped part.
Tutorial Exercise each profit (in dollars). (a) What is the cost function? (b) What is the revenue function? (c) What is the profit function? (d) Compute the profit (loss) corresponding to production levels of 9,000 and 12,000 units. Click here to begin! Submit Answer

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Problem 2243

Sketch a graph of: f(x)=2x+1+2f(x)=-2|x+1|+2

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Problem 2244

Solve the equation. 5.62t=1.38t8.485.62 t=1.38 t-8.48
The solution is t=t= \square \square. (Simplify your answer.)

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Problem 2245

Score: 15.33/56 Answered: 11/38 3 Question 18
Solve x=6|x|=6 x=x=
To give multiple answers, list your answers separated by a[comma Question Help: \square Video Submit Question

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Problem 2246

Question 8: (2 points)
Given f(x)=4x2+2x3f(x)=4 x^{2}+2 x-3, find a simplifed expression for each of the following: f(a)=f(a)= \qquad f(a1)=f(a-1)= \qquad f(a+h)=f(a+h)= \qquad f(a+h)f(a)h=\frac{f(a+h)-f(a)}{h}= \qquad
Question 9: (1 point) Given g(x)=x1+2g(x)=|x-1|+2, evaluate each of the following: g(9)=g(-9)= \qquad g(8)=g(-8)= \qquad
Question 10: (2 points) Given g(x)=x+5x3g(x)=\frac{x+5}{x-3}, write a simplified expression for each of the following: g(t)=g(t)= \qquad g(t1)=g(t-1)= \qquad g(s+h)=g(s+h)= \qquad

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Problem 2247

57. (2+1)(33)(2+\sqrt{-1})(3-\sqrt{-3})

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Problem 2248

Consider the following functions. f(x)=1x10;g(x)=x2+10f(x)=\frac{1}{x-10} ; g(x)=x^{2}+10
Complete the following statement, given that h=(gf)h=(g \circ f). h(11)= ? ( ? (11))= ? (=\begin{aligned} h(11) & =\text { ? }(\text { ? }(11)) \\ & =\text { ? }( \\ & = \end{aligned}

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Problem 2249

A butcher shop knows that it must buy a new machine in 6 years. The machine costs $13,000\$ 13,000. In order to accumulate enough money for the machine, the shop owner decides to deposit a sum of money at the end of each 6 months in an account paying 4%4 \% compounded semiannually. How much should each payment be?
The deposits form an \square because the deposits are made at the \square Each payment should be $\$ (Do not round until the final answer. Then round to the nearest cent as needed.) \square of each period. Therefore, the formula \square should be used

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Problem 2250

(z4)27(z4)+6=0(z-4)^{2}-7(z-4)+6=0

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Problem 2251

(x23)2+3(x23)4=0\left(x^{2}-3\right)^{2}+3\left(x^{2}-3\right)-4=0

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Problem 2252

Find the domain of the function. f(x)=6x48f(x)=\sqrt{6 x-48}
The domain is \square . (Type your answer in interval notation.)

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Problem 2253

8y31=08 y^{3}-1=0

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Problem 2254

In one town the annual consumption, bb, of beef (in pounds per person) can be estimated by b=320.5b=32-0.5, where tt is the number of years since 1975. What is the slope of the graph of this function? Write a sentence interpreting this value. A. The slope is 32 which means that the average consumption of beef in this town is decreasing by 32 pounds per person per year. B. The slope is -0.5 which means that the average consumption of beef in this town is decreasing by 0.5 pounds per person per year. C. The slope is 32 which means that the average consumption of beef in this town is increasing by 32 pounds per person per year. D. The slope is -0.5 which means that the average consumption of beef in this town is increasing by 0.5 pounds per person per year.

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Problem 2255

3x1459x95+6x45=03 x^{\frac{14}{5}}-9 x^{\frac{9}{5}}+6 x^{\frac{4}{5}}=0

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Problem 2256

Apply elimination and back substitution to solve: 2x2y1z=34x+2y+3z=52x+2y4z=2\begin{array}{r} 2 x-2 y-1 z=3 \\ -4 x+2 y+3 z=-5 \\ 2 x+2 y-4 z=2 \end{array}
The three pivots are: \square \square \square . The three multipliers are: 21=\ell_{21}= \square ,31=\ell_{31}= \square ,32=\ell_{32}= \square . The solution is (x,y,z)=((x, y, z)=( \square ,\square, \square ).

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Problem 2257

x+103=3x+185\frac{-x+10}{3}=\frac{-3 x+18}{5}

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Problem 2258

x2+4=36\frac{x}{2}+4=-36

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Problem 2259

y3+125=0y^{3}+125=0

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Problem 2260

x127x14+10=0x^{\frac{1}{2}}-7 x^{\frac{1}{4}}+10=0

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Problem 2261

59. 2+81+2\frac{2+\sqrt{-8}}{1+\sqrt{-2}}

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Problem 2262

Two linear functions, y1y_{1} and y2y_{2} are graphed in a viewing window with the point of intersection of the graphs given in the display at the bottom. Use the intersection method to solve the equation y1=y2\mathrm{y}_{1}=\mathrm{y}_{2}. A. -1 B. 52-\frac{5}{2} C. 1 D. -2

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Problem 2263

7z3+30z2=25z7 z^{3}+30 z^{2}=25 z

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Problem 2264

5y12512y75+4y25=05 y^{\frac{12}{5}}-12 y^{\frac{7}{5}}+4 y^{\frac{2}{5}}=0

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Problem 2265

"The sum of 5 and xx is multiplied by 2 . The result is then taken away from 18. ." Write an algebraic expression to represent this description.
You don't need to simplify the expression.

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Problem 2266

Modules Question 3 0/50 / 5 pts irades 13 iscussions eople Ilaborations A polynomial of degree 5,P(x)5, P(x) has leading coefficient 2 , and has roots of multiplicity 3 at x=1x=-1, multiplicity 1 at x=6x=6, and multiplicity 1 at x=5x=5.
Find a possible formula for P(x)P(x). You can leave your answer in factor form. P(x)=P(x)= \square Calculator Submit Question norlock dia Gallery Media

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Problem 2267

(7x5)235(7x5)13=0(7 x-5)^{\frac{2}{3}}-5(7 x-5)^{\frac{-1}{3}}=0

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Problem 2268

ons list Determine the slope, if it exists, of the graph of the linear equation. y=2xy=2-x
Select the correct choice below and fill in any answer boxes within your choice. 11 A. The slope is \square (Type an integer or a decimal.)

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Problem 2269

d) 6a(37a)5(37a)6 a(3-7 a)-5(3-7 a)

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Problem 2270

Calculate the compound amount from the given data. principal =$650=\$ 650, compounded monthly, 11 years, annual rate =6%=6 \%

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Problem 2271

Calculate the compound amount from the given data. principal =$750=\$ 750, compounded monthly, 10 years, annual rate =7%=7 \%
The compound amount is \ \square$ (Do not round until the final answer. Then round to the nearest cent as needed.)

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Problem 2272

Challenge \#17: Factor 6M27M56 M^{2}-7 M-5 three different ways.

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Problem 2273

Solve the compound inequality: 62x8<166 \leq 2 x-8<16.
Enter the exact answer in interval notation.
To enter \infty, type infinity. To enter \cup, type UU.

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Problem 2274

Solve for kk. 103=k9k=\begin{array}{l} \frac{10}{3}=\frac{k}{9} \\ k=\square \end{array}

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Problem 2275

Solve for kk. 87=12kk=\begin{array}{l} \frac{8}{7}=\frac{12}{k} \\ k=\square \end{array}

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Problem 2276

Solve the inequality involving absolute value. x3+411|x-3|+4 \geq 11
Enter the exact answer in interval notation.
To enter \infty, type infinity. To enter \cup, type UU. \square
Show your work and explain, in your own words, how you arrived at your answers. Words: 0

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Problem 2277

Solve for yy. 611=y3y=\begin{array}{l} \frac{6}{11}=\frac{y}{3} \\ y= \end{array} \square

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Problem 2278

6 erasers cost $6.60\$ 6.60. Which equation would help determine the cost of 3 erasers? Choose 1 answer: (A) 3x=$6.606\frac{3}{x}=\frac{\$ 6.60}{6} (B) 36=$6.60x\frac{3}{6}=\frac{\$ 6.60}{x} (C) x3=6$6.60\frac{x}{3}=\frac{6}{\$ 6.60} (D) x3=$6.606\frac{x}{3}=\frac{\$ 6.60}{6} (E) None of the above

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Problem 2279

4 markers cost $7.04\$ 7.04.
Which equation would help determine the cost of 7 markers? Choose 1 answer: (A) 47=$7.04x\frac{4}{7}=\frac{\$ 7.04}{x} (B) x7=4$7.04\frac{x}{7}=\frac{4}{\$ 7.04} (C) 7x=$7.044\frac{7}{x}=\frac{\$ 7.04}{4} (D) 47=x$7.04\frac{4}{7}=\frac{x}{\$ 7.04} (E) None of the above

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Problem 2280

A culture contains 15,000 bacteria, with the population increasing exponentially the culture contains 25,000 bacteria after 12 hours. a. Write a function in the form y=y0ekt y=y_{0} e^{\text {kt }} giving the number of bacteria after thours b. Write the function from part a in the form y=y0aty=y_{0} a^{t} c. How long will it be until there are 50,000 bacteria? a. The exponential equation is \square \square (Round to three decimal places as needed.)

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Problem 2281

Use the graph of the function ff shown to answer parts (a)-( n ). (a) Find f(21)f(-21) and f(6)f(-6). f(21)=f(6)=\begin{array}{r} f(-21)=\square \\ f(-6)=\square \end{array}

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Problem 2282

The following table shows a proportional relationship between ww and zz. \begin{tabular}{ll} ww & zz \\ \hline 18 & 2 \\ 45 & 5 \\ 81 & 9 \end{tabular}
Write an equation to describe the relationship between ww and zz. Equations may include exact decimals, proper fractions, or improper fractions. Please do NOT round or use mixed numbers. \square

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Problem 2283

Solve the inequality involving absolute value. x44<4\left|\frac{x-4}{4}\right|<4
Enter the exact answer in interval notation.
To enter \infty, type infinity. To enter UU, type UU.

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Problem 2284

A total of 560 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold. How many adult tickets were sold? adult tickets

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Problem 2285

Alexandra paid $7\$ 7 to park her car for 3 hours at the parking garage. The garage charges a constant hourly parking rate.
Write an equation that shows the relationship between pp, the number of hours parked, and cc, the cost in dollars. Do NOT use a mixed number. \square

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Problem 2286

Justin runs at a constant rate, traveling 17 km in 2 hours. Write an equation that shows the relationship between dd, the distance he runs in kilometers, and hh, the time he spends running in hours. Do NOT ise a mixed number. \square

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Problem 2287

Find the xx - and yy-intercepts for the function. f(x)=x+1x2+9f(x)=\frac{x+1}{x^{2}+9}
Enter your answers as points, (a,b)(a, b).
The xx-intercept is \square 田.
The yy-intercept is \square
Show your work and explain, in your own words, how you arrived at your answers.

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Problem 2288

Wangari plants trees at a constant rate of 12 trees every 3 hours. Write an equation that relates pp, the number of trees Wangari plants, and hh, the time she spends planting them in hours. \square

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Problem 2289

Solve for vv. v6=48\frac{v}{6}=\frac{4}{8}
Simplify your answer as much as possible. v=v=

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Problem 2290

Use the graph of the function f shown to answer parts (a)-( n ). Negative Positive (e) For what value(s) of xx is f(x)=0f(x)=0 ? x=18,3,12x=-18,-3,12 (Use a comma to separate answers as needed.) (f) For what values of xx is f(x)>0f(x)>0 ? 18<x<3,12<x18-18<x<-3,12<x \leq 18 (Type a compound inequality. Use a comma to separate answers as needed.) (g) What is the domain of ff ?
The domain of f is {x21x18}\{x \mid-21 \leq x \leq 18\}. (Type a compound inequality.) (h) What is the range of ff ?
The range of ff is {y\{y \mid \square (Type a compound inequality.)

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Problem 2291

a1/lnaa^{1 / \ln a} using base ee, for a>0a1a>0 \notin a \neq 1

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Problem 2292

Alice can wash and wax her car in 3 hour and 30 minutes. If Bernice helped her, Alice could do the job in 2 hours. How long would it take Bernice working alone?

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Problem 2293

1. The equation of a demand function is given by Q=855PQ=85-5 P where QQ is the number of buses demand to travel to Monze daily. PP is the price per Bus fare in K. a) What is the change in demand QQ when the PP increases by 1 unit? b) What is the demand when P=0P=0 ? c) What is the price P when Q=0Q=0 ?

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Problem 2294

6. 256a34\sqrt[4]{256 a^{3}}

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Problem 2295

It takes 338. kJ/mol\mathrm{kJ} / \mathrm{mol} to break an carbon-chlorine single bond. Calculate the maximum wavelength of light for which an carbon-chlorine single bond could be broken by absorbing a single photon.
Be sure your answer has the correct number of significant digits. \square nm

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Problem 2296

Tell whether the order pair is a solution to the given equation
38. y=3x;(4,13)y=-3 x ;(4,-13)
39. y=3x2;(1,5)y=3 x-2 ;(-1,-5)

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Problem 2297

Solve for xx. 8x=59x=\begin{array}{l} \frac{8}{x}=\frac{5}{9} \\ x= \end{array}

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Problem 2298

2. The equation of the demand function is given by P=170P=170 where PP is the price of 10 kg bag of sugar in kwacha. a) What is the slope of this demand function? Describe what this means. b) Plot the graph of this demand function.

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Problem 2299

3. Maggie spent $4.05\$ 4.05 on cheese and fruit at the farmer's market. She bought 18\frac{1}{8} pound of apples, 14\frac{1}{4} pound of pears, and 1.25 pounds of bananas. If fruit cost $0.80\$ 0.80 per pound, how much did Maggie spend on cheese?

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Problem 2300

Part A
Rolls of foil are 308 mm wide and 0.013 mm thick. (The density of foil is 2.7 g/cm32.7 \mathrm{~g} / \mathrm{cm}^{3}.) What maximum length of foil can be made from 1.26 kg of foil? Express the length to two significant figures and include the appropriate units.

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