# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 605-
## Math

Use the compound interest formula A=P(1+r)^t and the given information to solve for r. A=9,000,000 P=80,000 t=40 I have done this problem over a over and still get the wrong answer.

*asked by crazy8 on October 23, 2011* -
## physics

A force of 50.0N is used to stretch an elastic so that it had 40.0 J of elastic potential energy. Through what distance was the elastic stretched? F= 50.0N ?? how do i solve.. ugh!

*asked by chyanne on April 29, 2008* -
## Math

The tornadoes have won 75% of their games. If they their next 4 games, their win percentage goes up to 80%. How many games have they played right now? (Please explain how to solve this problem)

*asked by Selina on July 20, 2016* -
## math

I can't solve this one: The second term of an arithmetic sequence is 24 and the fifth term is 3.Find the first term and the common difference. How could I get the answers if there's only two given numbers?

*asked by maiah on June 27, 2016* -
## algebra

Use the compound interest formula A=P(1+r)^t and the given information to solve for r. A=9,000,000 P=80,000 t=40 I have done this problem over a over and still get the wrong answer.

*asked by beth on October 23, 2011* -
## MATH.

I need help to solve this Equation using the Scientific Calculator Z= Square Root (47 Ohm)2 + (100 Ohm)2= 110 Ohm.

*asked by UNKNOWN. on June 3, 2010* -
## Electricity and Electronics

if the resistance of an circuit is 12 ohms and the voltage in the circuit is 60 V, the current flowing through the circuit is? Are you talking d.c.? E = IR, solve for I and I = E/R E = 60 V R = 12 ohoms

*asked by jackie on June 15, 2006* -
## Physical Science

The potential energy of an apple is 6.00 joules. The apple is 3.00-meters high. What is the mass of the apple? Please help! I have no idea how to solve this. :(

*asked by Help! on September 26, 2017* -
## Math

For questions 1 and 2 choose the equation or proportion that you can use to solve the problem: What number is 73% of 215? A.215 = 0.73 B.n = 0.73 × 215 C.0.73 = nx215

*asked by Johnny McKarron is cool on December 17, 2015* -
## math

Solve each equation and leave the answer in simplest radical form. x squared+6x-9=0 n squared-2n+2=5 3y squared-4y-2=0 I never learned how to do this. Can you help me?

*asked by robert on December 10, 2007* -
## Math

How do you solve this? I posted this question last night and someone answered but it wasn't the right answer. I have tried so many times and still can't get the right answer. the right answer is suppose to be 15/2 5/6-1/3+ 7/8/(1/2)^3 Thank you for your

*asked by Mike on January 22, 2010* -
## precal

4=2cos(pi/6t-2pi/3)+4 How do i solve this step by step ith justification for each step? super frustratd thankyou

*asked by wendell on June 8, 2012* -
## Pre Calculus

Solve 2cos^2(2x)=1 I divided both sides by 2 and got this cos^2(2x)=1/2 But then I didn't know what to do after that... The part that has me stumped is that it's a cos^2(2x) not just a cos^2x. Any advice on what I should try next?

*asked by Chris on May 8, 2013* -
## math

Solve the proportion using cross products. 20 Miles 15 Miles ________ = __________ 50 Miles h Hours Please Answer!!!!

*asked by !!PLEASE ANSWER!!! on November 30, 2012* -
## Math

Solve for the interest acured on a 520 investment after 4 years that has an interest rate of 4.9% per year, simple interest.

*asked by Courtnie on June 16, 2013* -
## Trigonometry

Solve each equation for theta, giving a general formula for all of the solutions: a. tan(theta)=-1 b. sin(theta/2)=1/2

*asked by Alex on March 28, 2015* -
## math

i need to integrate: (secx)^4 dx let u = sec x dv =sec^3 x dx Start with this. Then, you will have to deal with the integral of sec. You should be able to solve it after a few steps. Looks a little messy.

*asked by Jake on February 1, 2007* -
## history

“We owe it, therefore, to candor and to the amicable relations existing between the United States and those powers to declare that we should consider any attempt on their part to extend their system to any portion of this hemisphere as dangerous to our

*asked by lilkakes on January 10, 2019* -
## health care

response to the following: Computer technology continues to make rapid advances. Health care facilities have used computer programs for administrative functions such as payroll and billing. How do health care facilities use electronic (or computerized)

*asked by Tj on September 2, 2009* -
## physics

A 0.330-kg block of wood rests on a horizontal frictionless surface and is attached to a spring (also horizontal) with a 29.5-N/m force constant that is at its equilibrium length. A 0.0600-kg wad of Play-Doh is thrown horizontally at the block with a speed

*asked by HELP!!! on November 30, 2012* -
## Physics

In a physics lab, Kate and Rob use a hanging mass and pulley system to exert a 2.45 N rightward force on a 0.500kg cart to accelerate across a low-friction track. If the resistance (ignore air resistance) force to the motion of the cart is 0.72N, then what

*asked by Anon on July 3, 2019* -
## physics

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance

*asked by Anonymous on July 19, 2013* -
## physics

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance

*asked by andy on July 17, 2013* -
## physics

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance

*asked by andy on July 17, 2013* -
## Physics

*asked by Danny on July 16, 2013* -
## accounting

Can someone please check my answer to the following question. Jill bought 500 shares of stock on October 22,2005 for $30,000. On March 25, 2006 she gave half the shares to her sister when the fair market value was $55 per share. If Jill's sister sells the

*asked by help please on February 26, 2007* -
## Computer science(Information Retrieval Architectur

Stemming: a. Compare advantages and disadvantages of Porter Stemming algorithm, Dictionary stemming algorithm and Success Variety stemming algorithm. b. Create the symbol tree for the following words (canopy, cars, cabony, cabossy, cabort, cabins, cabity,

*asked by Nany on April 27, 2015* -
## Geometry

A city has a scale model of the solar system nearly 6 km long. The model's scale is 1 km : 1 billion km. a. Earth is 150,000,000 km from the Sun. How many meters apart are Earth and the Sun in the model?

*asked by Anonymous on December 30, 2011* -
## Math

this a system of equations A merchant decides to mix peanuts worth 5.25 per pound and trail mix worth 2.75 a pound to make a 10 pound mixture worth 4.75 per pound. how many pounds of each should his mixture contain? please help me.

*asked by Keonn'a on October 16, 2018* -
## differantiation

Determine dy/dx if: (i) Y= sqrt x^sqrt x (ii) Y= xarcsin(x) + sqrt(1-x) Please show all steps. Thanks 1) http://www.analyzemath.com/calculus/Differentiation/first_derivative.html 2) an antiderivative of arcsin(x) is xarcsin(x)-sqrt(1-x^2); are you certain

*asked by Ruth on August 12, 2006* -
## US History

"...To make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government of the United States, or in any Department or Officer thereof." This clause was

*asked by maczindahouse on April 8, 2019* -
## STATISTICS

Pure Plastics Inc. manufacture molded plastic pieces. A sample of their raw material inventory is shown in the table below: Item Average Inventory (units) Value ($/unit) 128 400 3.75 234 300 4.00 233 120 2.50 236 75 1.50 239 60 1.75 240 30 2.00 678 20 1.15

*asked by cheryl on November 13, 2011* -
## history

What was the role of civil service examinations in Ming China? does anyone have any idea what the answer could be. I was looking on the internet and found this- --The civil service examination system, a an effective cultural, social, political, and

*asked by Victoria on February 21, 2014* -
## operations management

Pure Plastics Inc. manufacture molded plastic pieces. A sample of their raw material inventory is shown in the table below: Item Average Inventory (units) Value ($/unit) 128 400 3.75 234 300 4.00 233 120 2.50 236 75 1.50 239 60 1.75 240 30 2.00 678 20 1.15

*asked by cheryl on November 11, 2011* -
## History

Which accurately describes the Columbian Exchange that resulted from the Age of Discovery? the economic system employed by Europeans national to control trade and increase wealth the exchange of Indian captives in return of gold by Columbus and his men on

*asked by malia on October 26, 2017* -
## Government

1. How is the I.S. constitutional government designed? Select 2 that apply. - The Judicial System is controlled by the legislature - the three branches of government can check and balance each other - Powers not given to the federal government are reserved

*asked by Lexi on September 29, 2016* -
## Algebra 2

The sum of a few numbers if 30, the first number is 2 less than the second, and the third is 4 less than the first. What are the order of numbers and what are the numbers? This is a post by one of my classmates that I'm supposed to solve. I'm probably

*asked by Fading on November 9, 2016* -
## MATH

Alexis separated her pictures into 3 piles. Each pile contained 9 pictures. How many pictures did she have in all? Write and solve equation. Answer to my problem: 27=9p p=3

*asked by Nichelle on January 15, 2015* -
## help with trigonometry??

Jacob is standing 112 m from a building. The angle of elevation when he looks up to the top of the building is 62°. How tall is the building? I don't really understand how to solve this, please help!!

*asked by Valerie on January 24, 2017* -
## ALGEBRA

Solve the exponential equation. Give the exact value for x. (Express all logarithmic functions in terms of ln(x) in your answer.) text((a) ) e^x = 10 x = text((b) ) e^x = 2.0 x = text((c) ) e^x = 37.9 x =

*asked by Randy on April 25, 2012* -
## Math

Need to know the formula for find the perimeter. Need to solve this problem. A square metal box has a perimeter of 8.32". If the sides are .04" thick what is the perimeter of the inside?

*asked by Dale on September 21, 2009* -
## plz help me out** math

find a number such that 14 less than three times the number is 25. i think u subtact 14-3n=25 14-3n=25 won't get it. That gives a negative number. Try 3n-14=25. Solve for n. Im in algebra the answer is 14-3n=25.Promise me always get these problems right.

*asked by valerie* on November 6, 2006* -
## calculus

hi, how do u solve this problem using limit notation. I tried it but go stuck at the last part. find f'(x) for f(x)=Sqrt2x-1 using F(x+h)-f(a)/h i got to the end and i got 1/Sqrt2x-1 -sqrt2x-1. i don't know wht u do next? am i right so far?

*asked by fred on March 4, 2008* -
## Homework - Math

This is dividing polynomial by monomials How do yu solve these? 1. 5mn divided by 5m^3n - 10m^2n^2 2. -10a^6 divided by -30a^9 + 20a^7 3. -2a divided by 8a^3 - 4a^2b + 6ab^2

*asked by Anonymous on January 6, 2014* -
## math Please help!!

Using a scale factor of 1 inch = 16 feet, what are the blueprint dimensions of a room that is 20 feet x 28 feet? A. 1.5 in x 2.5 in B. 1.25 in x 2.25 in C. 1.25 in x 1.75 in D. 1.5 in x 1.75 in Could anybody tell me how to solve this problem, please? I

*asked by boi on November 10, 2017* -
## Algebraic

Determine the roots of the quadratic equation by completing the square. Solve for exact solutions and approximate solutions. Check your solutions. Y=x2-6x-12

*asked by rian on March 29, 2016* -
## algebra1

Help me please!!!! Solve. (–18x3 + 17x + 6) ÷ (3x + 2) (1point) –6x^2 + 4x + 3 6x^2 + 4x – 3 –6x^2 + 4x – 3 6x^2 – 4x + 3 The width, w, of a rectangular garden is x – 2. The area of the garden is x^3 — 2x – 4. What is an expression for

*asked by Tommy on May 19, 2014* -
## cosines

I don't know how to reverse cosine decimals into angles. Can you please explain and help me solve these . cos A= 0.28571428571 A= cos B= 0.66666666667 B= cos C= 0.5238089523

*asked by Anon on February 27, 2011* -
## trigonometry

I need help in understanding how to identify which identity to use. using this question as an example. Show that tan theta (sin theta+cot theta cos theata)all over cos theta = sec^2 theta. Please explain.

*asked by lindsay on May 4, 2012* -
## chemistry

nearest star distance of 4.3 light years proxima centauri is the nearest star to our solar system. what is the distance to proxima centauri kilometers? the speed of light in space is 2.998 x10^8 m/s.

*asked by help plz on January 30, 2015* -
## physics

i am going a center of gravity problem, with the x=w1(x1)+w2x2..../ W1+W2.. and i keep getting the wrong answer can someone please tell me what i am doing wrong this is the problem:Four objects are situated along the y axis as follows: a 1.94 kg object is

*asked by Kaity on February 1, 2012* -
## us history

In many ways after the divisiveness and devastation of the Civil War, the United States searched for order economically, politically, geographically, socially and racially. Select one of these areas, or suggest another, and make a case for the reasons why

*asked by kc on December 5, 2012* -
## Intro Biology

I can't find examples in the book as reference. Please help me with these questions and explain why. 1.) Which of the following has no vascular tissue (“plumbing system”)? A) Conifer B) Angiosperm C) Fern D) Moss E) Ginkgo 2.) Which of the following

*asked by Andrew on November 25, 2014* -
## English (spelling and grammar)/General

I posted my answers to questions that were asked of me. Can someone read over my responses and make any corrections that you see fit? ... Thank you! A. I am currently working at Mohegan Sun as a Wardrobe Attendant. A. I am looking for law enforcement

*asked by Manny to ANYONE on January 29, 2008* -
## Early Childhood Education

I am having a hard time finding article for this assigment? Find an article on one or more strategies that work with young children to promote sociable and acceptable group behavior with peers

*asked by Betty on April 16, 2018* -
## English

Pretend you are a modern social worker, educator, environmentalist, or military advisor to the president. Attack an evil you see the work by writing an ironic proposal and the proposal have to be outrageous

*asked by John on April 4, 2013* -
## physics

A patialy moves along half the circumference of a circle of 1 meter radius. Calculate the work done if the force at any point inclined at 60o to the tangent at that point has 5 New tones magnitude

*asked by sunil on July 10, 2012* -
## physics

a 1462 kilogram block was lifeted vertically at a constant velocity a distance of 0.08 x 10(to the 6th power) meters in 5minutes. A-how much work was done? B-what was the average power consumption in watts?

*asked by Jen on May 24, 2012* -
## Physics

A gun is shot horizontally from a building that is 10 meters high at a velocity of 220 meters/ second: I need to know what Vx is and Vy along with answering Vx after 3 seconds Vy after 3 second. We were given these equations Vy= Vy0-9.8t y= y0+Vy0t-4.9t^2

*asked by Anonymous on November 28, 2016* -
## Business

Give an example of when you made an important decision related to school, work, or a business transaction. What elements of critical thinking did you use? How might you improve your decision-making strategies in the future?

*asked by Barney on August 21, 2010* -
## Physics

A 5000 kg space shuttle starts at rest and linearly increases its thrust from 0N to 1000N across a displacement of 2000 meters. Calculate the total amount of work done on the shuttle.

*asked by jackie on April 7, 2015* -
## physics

An 845 N sled is pulled a distance of 180 m. The task requires 1.38 x 104 J of work and is done by pulling on a rope with a force of 122 N. The rope is held at _____° above the horizontal.

*asked by Dee on January 24, 2012* -
## Chemistry

How many moles of helium are contained in a 5.00-L canister at 101 kPa and 30.0 degrees Celsius? I don't understand how to get the answer. My teacher didn't explain the work she just gave me the answer.

*asked by Walker on March 9, 2011* -
## English

8. This question asks about your work in your reading role. You may use the novel to help you answer the question. What impact did the novel have on you as a reader? Would you recommend the novel to a friend? Why or why not? Support your response with at

*asked by anonymous on January 11, 2019* -
## Calculus derivative

Find the slope and an equation of the tangent line to the graph of the function f at the specified point. f(x)=-1/3x^2+5x+5: (-1, -1/3) Answer: f’(x)=-2/3x + 5 y=-2/3x -1 I re-worked the problem and got f'(x)=5, y=5x+ 14/3 This is from a multiple choice

*asked by Steff on June 15, 2011* -
## English

I have never met anybody famous. AM I CORRECT TO SAY THIS IS Present perfect tense? Also can anybody tell me where I can look at examples of ESA Engage, Study, Activate Lessons? I wish to look at some examples of how they are written up and get my head

*asked by Tony on October 29, 2008* -
## Interpersonal Communication

How does confidence,hard work, unorganization and shyness relate to Interpersonal Communication? I need some example from chapter 1 and 2 from Reflect and Relate 2nd Edition by Steven McCornack. Need help before the end of the day.

*asked by Branden on August 6, 2014* -
## Stats

So i have a test in stats tomorrow and im trying to work on my study guide but im stuck at this question : Construct a confidence interval for the proportion for each case 90 percent interval 861 out of 2500. please help.

*asked by Jessica on October 19, 2014* -
## physics 11

The loaded cab of an elevator has a mass of 3.0 multiplied by 103 kg and moves 161 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab?

*asked by rafeh on November 2, 2012* -
## Art

When creating a collection based on a message, an artist should consider all of the following except A. the audience the collection will the presented to B. the subject matter they most prefer using as a reference C. the dollar amount they wish to sell it

*asked by Caroline on January 15, 2016* -
## Physics

Two identical point charges are fixed to diagonally opposite corners of a square that is .5m on a side. Each charge is 3.0E-6 C. How much work is done by the electric force as one of the charges moves to an empty corner?

*asked by Bob on October 11, 2010* -
## Sociology

This is the reason an employer might restrict employee internet access? a. Employees waste too much time on the internet b. viewing certain kinds of sites could lead to a hostile work environment

*asked by Chrissy on March 10, 2013* -
## physics

You’re sanding a table. You must exert a force of 23 N on the sandpaper to keep it moving steadily across the table’s surface. You slide the paper back and forth for 23 minutes, during which time you move it 1090 m. How much work have you done?

*asked by olga on February 10, 2011* -
## physics

what would make you weigh less inside of the empire state building on the ground floor, oppose to outside on the sidewalk. (weighing on a regular bathroom scale)The mass of the building? If so how does that work?

*asked by Nichole on November 9, 2008* -
## math

Ben works 6 hours each day at his job at a local fast food restaurant. He went home sick after working 2 hours. what is the fraction of the 6 hour shift did he Not work?

*asked by Anonymous on April 30, 2014* -
## english

what motivates us as writers and viewers to create and interact with characters through pieces of work such as " a beautiful mind" (movie. This is our essay question. what topic and 3 arguments could i talk about in my essay

*asked by sarah on July 9, 2013* -
## Physics

Two blocks of the same mass are raised up a height of 3m from the ground. One is raised straight up and placed on a pedestal and the other is pushed up an incline with friction to get there. In which case, if either is work more necessary? Which block

*asked by Anonymous on November 16, 2010* -
## physics

In a time of 10s, a 70 kg student runs up 2 flights of stairs whose combined vertical height is 8.0m. compute the student's power output in doing work against gravity in (a)watts and (b)horsepower

*asked by Wendi on December 8, 2010* -
## Language Art (Please Check)

1.C which of the following is a simple sentence? A.she lit a lantern and raced toward the bridge B.the lantern did not work,so she tossed it aside C.buck and minnie were the first horses out of the barn D.she was startled by a sound,which turned out to be

*asked by matt on March 16, 2014* -
## Maths

Hello, I'm supposed to do this questions using concepts of differentiation with proper workings, and not based on general knowledge. Question: If x + y = 82, find the maximum value of xy. I know that 41 and 41 would give the greatest product... but how

*asked by Andrea on June 19, 2009* -
## Criminal Justice/Terrorism

A good thing to remember about a new technology is that it: A. can easily make up for a lack of training. B. can always be updated with new software. C. has been lab tested, so you know it will work in the field. D. can never replace training and judgment

*asked by Pat on July 18, 2015* -
## science

A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the figure below. When 0.46 kJ of heat is added to the gas, it expands and does 186 J of work on the surroundings. What are the values of ÄH and ÄE for this process?

*asked by Samantha on December 17, 2012* -
## precalculus

can you check my work? In exercises 10-12, sketch the curve represented by the parametric equations. Then eliminate and write the corresponding rectangular equation whose graph represents the curve. 10. x=t2-6 y=1/2t-1 answer: t=2y-6= (2y+2)2-6 =4y2+8y-2

*asked by Anonymous on December 14, 2016* -
## Science

a 500 Newton ballerina did 250 joules of work to lift herself upwars through the air. She landed a total of 2.5 meters to the left after completing her jump. How high did she jump?

*asked by Jaisa on March 11, 2009* -
## Science

you push a 75 kg wooden box at a constant speed. the coeffiecent of kinetic friction between the box and the desk is 0.230. You pull the crate a distance of 8.75 m. How much work was done? Explain steps please//

*asked by analicia on January 10, 2013* -
## Spanish

Dr. Mario Jose Molina won the Nobel Prize in Chemistry for his work studying which problem? a. the ozone layer*** b. deforestation c. the El Nino effect d. the greenhouse effect

*asked by Kaai97 on January 20, 2016* -
## matn

need help with word problem? half add it Find a number such that when added to numerator and denominator of 2/11 yields a fraction equivalent to 1/2? thanks for any help (x+2)/(x+11) = 1/2 x is the number you want. Now do the algebra. I will be happy to

*asked by vince on March 8, 2007* -
## physics

In moving out of a dormitory at the end of the sememster, a student does 1.8 104 J of work. In the process, his internal energy decreases by 4.2 104 J. Determine each of the following quantities (including the algebraic sign). a) W b) U c) Q

*asked by Anonymous on February 28, 2013* -
## Physics

A(n) 80.0-kg student eats a 160-Calorie doughnut. To burn-it-off, he decides to climb the steps of a tall building. How high (in m) would he have to climb to expend an equivalent amount of work?

*asked by Anonymous on December 9, 2012* -
## Health/ Basic Clinical Procedures

please check my answer thanks True or False A physical or mechanical device used to remove healyh hazzards from the work place is called personal protective control I said True

*asked by Helana on April 21, 2008* -
## business alliance

Amazon. com and Toys "R" Us decided to work together to sell toys over the Internet. What decisions would executives from each company have to consider in order to complete this alliance? umm.. prices?? how the money is split up?? what else? Thanks.

*asked by sally on November 6, 2006* -
## Science

you push a 75 kg wooden box at a constant speed. the coeffiecent of kinetic friction between the box and the desk is 0.230. You pull the crate a distance of 8.75 m. How much work was done? Explain steps please//

*asked by analicia on January 10, 2013* -
## writing ASAP-.

i'm work on a book project on ameila earhart.The queston on my book report is ...How is the provied by the author imporant or relatable to today's modern society ?Please tell what this means and give an example.

*asked by lauren on November 7, 2009* -
## Math

Sally invests £8000 in a savings account . The account pays 2.8% compound interest per year . Work out the value of her investment after 4 years . Give your answers to the nearest penny .

*asked by B_cant_do_maths on October 6, 2018* -
## Chemistry

Hey, been trying to work through this but no luck so far: The heat of formation of nitrogen atoms N(g) is 472.7KJ/mol. Is that enough information to determine the N-N bond energy in N2(g)? Is so, what is it in units of KJ/mol? If not, explain why not.

*asked by Tyrell on February 10, 2011* -
## American History

I am writing a research paper on President Abraham Lincoln I have to describe reasons why he was such an influential leader. I need at least 3-4 main ideas to work with on this paper and so far I only came up with one..he ended slavery...any suggestions?

*asked by Lily on February 18, 2008* -
## Oganizational Behavior

a form of intrinsic motivation rooted in the belief that work tasks contribute to some larger purpose is know as: a. self efficacy b. goal commitment c. goal setting d. psychological empowerment

*asked by Anonymous on October 22, 2013* -
## Nursing

. Ralph is having a colonoscopy and brings paperwork to excuse him from work with pay. Which of the following protects the information disclosed in this paperwork? A. Authorization B. Minimal disclosure C. Safeguards D. Minimum necessary standard B

*asked by blue on February 24, 2019* -
## math

As a fundraiser students had to raise $1200. They will sell popcorn ,at the gameshistory shows that there are usually 120 bags of popcorn sold each game. how much money should they charge if they work 6 games?

*asked by janice on April 21, 2009* -
## physics

A 16.0-N weight slides down a rough inclined plane that makes an angle of 28.0° with the horizontal. The weight, which started from rest, gains a speed of 15.0 m/s after sliding 150 m. How much work is done against friction?

*asked by Alexandra on August 29, 2012*

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