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 708
1. Custer's Last Stand

I have only been around for two research days for this big project on Custer's Last Stand, and I have some information and a LOT of books, but I need quick, straightforward info that I can work around. Any solid information you know pertaining to details

asked by Catherine on December 19, 2012
2. Geometry equation

I do not understand how to work a problem or equation out for geometry. The equation refers to two parrellel lines that have a transversal line running diagonal through each one. The exterior anglebottom left part of the top parrellel line, measures at 52

asked by BWB on May 11, 2010
3. Civics

What are some pros and cons of todays min. wages? Here are some sites on the pros and cons. There is also a poll included. http://www.youdebate.com/DEBATES/minimum_wage.HTM http://www.ncpa.org/sub/dpd/index.php?page=article&Article_ID=11242 (Broken Link

asked by Destinee on November 29, 2006
4. chemistry

4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) If a container were to have 16 molecules of NH3 and 16 molecules of O2 initially, how many total molecules (reactants plus products) would be present in the container after this reaction goes to completion? (Use

asked by Anonymous on October 19, 2013
5. chemistry

Use the combined gas law to solve the following problem: Calculate the volume of helium gas that results when 0.550 L of the gas is heated from 22.0 degrees C at 1.00 atm to 30.0 degrees C at 1.50 atm .

asked by Anonymous on April 8, 2010
6. algebra 2

i have a piece of wood 72 inches long i cut it into 3 peices. the 2nd peice is 6 inches longer than the 1st the third id 6 inches longer than the 2nd. write and equation and solve??

asked by bandit on August 6, 2009
7. algebra

Suppose that these 15 measurements are respectively labeled x1,x2,..,x15. (Thus,-27 is labeled x1,62 is labeled x2,and so on.) Find. 15 over the sum sign and i=1 under the sum sign(x1 + 43) I ahve no idea how to solve this becaue I never seen this type of

asked by treshia on March 22, 2011
8. math

the sum of the ages of Sylvana’s two daughters is 60. If the older daughter is three years older than the younger daughter, and the younger daughter’s age is y, write an equation that could be used to solve this problem.

asked by carol on September 10, 2014
9. Quick Algebra Help

The rules for a book report say that the report should have 300 words with an absolute value deviation of at most 20 words. Write and solve an absolute value inequality that represents the acceptable number of words.Please help me!

asked by Hannah on September 24, 2015
10. math

(i) Express the complex number z = 4i/(1-i√3)in Cartesian form. (ii) Determine the modulus and argument of z, and hence express z in polar form. (b) Solve the equation z4 − z = 0, expressing your solutions in Cartesian form.

asked by s17 on October 29, 2018
11. math

a rectangular plot of land has an area of 1050meters squared. its length exceeds its width by 5 meters. find the length of the plot. let the width be x m then the length is x+5 m so x(x+5) = 1050 now you solve it and let me know what you got.

asked by anonymous on April 25, 2007
12. Math

John has some marbles. Sally has 5 more than twice as many as John. Ingrid has 4 times as many marbles as John. If the three friends have 96 marbles in all, how many marbles does each person have? Write an algebraic equation (NO GUESS AND CHECK!) and solve

asked by Zeze on September 4, 2014
13. government

What caused states to demand a constitutional Convention and explain why? What three issues caused the most conflict during the Constitutional Convention and why? How did the COnstitutional delegates solve these problems? Please tell me how to answer the

asked by cc on October 19, 2006
14. Algebra 1

Write and solve an inequality that represents the given situation. If Lisa increased her rate by 15 mi/h, then in 2 hours she would travel a greater distance than she does in 3 hours at her present rate. What do you know about her present rate?

asked by I need help on November 28, 2017
15. math

Sorry I posted this question earlier with a error. Can anyone help me solve this now? Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 5 = upper limit

asked by mark on May 19, 2013
16. math

each table in a banquet room seats 8 people. The room can seat no more than 360 people. Write and solve an inequality to represent the number of tables in the banquet room

asked by kelsionna on January 18, 2013
17. math

how can i make a model to solve this problem? Javia ran 8 laps around a track to run a total of 1 mile on Monday. How many laps will she need to run on Tuesday to run 3/8 of a mile?

asked by Diana on January 9, 2014
18. Pre-Algebra

Montel spends \$0.75 every time he plays his favorite video game. Montel has \$10. write and solve an inequality that shows how many times Montel can play the video game.

asked by Me PLZ HELP!!!! TNX on January 26, 2012
19. jill

***Solve exercise using present value principal -1500 term of invesment(%) -4.5 Interest compounded - monthly present value ? Compound interest ? ** the problem is asking for me to find the present value & compound value!!

20. Math

Write a mathematical expression to represent this situation. Then find the value of the expression to solve the problem. You play a game where your score -6 points on the first turns and one each of the next 3 turns. What is your score after those 4 turns?

asked by Anonymous on August 31, 2017
21. Statistics

I know don't know if this right P(X)

asked by Will on October 5, 2015
22. essay

could I have to write an essay on the question what is the most important issue facing the global economy? explain the issue in detail and your reasoning for it being so important. I chose the topic of globalization. could someone help me figure out a few

asked by Greg on April 28, 2007
23. Gr.11 Biology

In humans, muscular dystrophy is a condition in which the muscles waste away during early life, resulting in death in the early teens. It is due to recessive sec-linked gene. A certain couple have 5 children- 3 boys, ages one, three and ten; and 2 girls,

asked by Helen on October 3, 2015
24. social

This is a sentence in my essay. Doing a defensive paper on globalization "This can lead to constant melting of the ice caps and glaciers in colder countries, warmer countries are experience blistering warm, and dry weather." Comment: How does this sentence

asked by Anonymous on June 13, 2019
25. FINANCE

Life for Kids Company, a small producer of plastic swimming toys, wants to determine the most it should pay to purchase a particular ordinary annuity. The annuity consists of cash flows of \$700 at the end of each year for 5 years. The firm requires the

asked by JUNE on March 23, 2010
26. Communication and Gender Studies

Show types: Reality TV dating shows that feature Bachelors and Bachelorettes vie for each others’ affections, “Who Wants to Marry a Millionaire” and In the summer of 2007 and the spring of 2009, 20-30 year-old men and 40-year-old women were vying for

asked by Cassie on July 5, 2010
27. critical thinking

How can reader's distinguish between prejudicial and non-prejudicial use of rhetorical devices? How can a person distinguish between the prejudical and nonprejudical use of rhetorical devices? A prejudicial use of rhetoric will often have little backing,

asked by scorpio on June 16, 2006
28. Poetry check?

So I'm doing a project called Equality Matters. I decided to try and use my writing abilities to help me. Can you check this poem? To Be Who You Are Meant To Be: Equality Matters People tell me to be who I want And to be what I need So whats wrong if I'm

asked by rawr... im a dinosaur.... rawr on October 12, 2012
29. Basic Algebra

\$5130 is to be divided equally among the members of a family group. Eight members of the family obtained knowledge of the loot and insisted their share. Determine the original number of family members. I don't want the answer just need to know the formula

asked by Kyan on August 19, 2014
30. Psychology

Can the Bible and science co-exist without either losing its authority? How? In my opinion, the Bible teaches moral and spiritual precepts. It doesn't pretend to be a scientific text book. Science tells us how things work. I don't see a conflict between

asked by Nelda on January 17, 2007
31. ap physics

Karen has a mass of 48.2 kg as she rides the up escalator at Woodley Park Station of the Washington D.C. Metro. Karen rode a distance of 65.7 m, the longest escalator in the free world. The acceleration of gravity is 9.8 m/s2 . How much work did the

asked by anna on February 25, 2011
32. Math

HELLO, THIS IS MY FIRST TIME USEING THE JISKHA WEBSITE. I NEED HELP WITH MY HOMEWORK. PLEASE HELP ME WITH MY HOMEWORK! THANK YOU! _______________________________________ MY MATH HOMEWORK: 30 DIVIDED BY 10 56 DIVIDED BY 6 55 DIVIDED BY 10 30/10=3 55/10=5.5

asked by Sanjana on December 23, 2006
33. Physics

Karen has a mass of 52.7 kg as she rides the up escalator at Woodley Park Station of the Washington D.C. Metro. Karen rode a distance of 57.5 m, the longest escalator in the free world. The acceleration of gravity is 9.8 m/s2 . How much work did the

asked by Mike on February 27, 2011
34. Statistics

Can someone please help me answer these questions? I have tried every method I know and the computer still keeps marking the answers as incorrect. Thanks for the help! 1) If the number of 18-34 year olds sampled is equal to the value identified in part

asked by Jen on June 10, 2014
35. writing

i need help finding mistakes in this paragraph my teacher said there's 9 can you help me find it? The assignment is to First correct it the mistakes in the paragraph. than re- wright it the passage correctly in cursive. I'll show you, Yesterday was the

asked by Gila on January 29, 2014
36. Sentences and Paragraphs

You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must describe one

asked by Diana on August 18, 2013
37. Physics

Consider a capacitor made of two square plates of side l. The distance between the two plates is d . (a) We insert a dielectric of dielectric constant K>1 and width l a distance x (as in the diagram). What is the total capacitance of this arrangement?

asked by P on March 13, 2013
38. Spanish

What was the main reason that Mexican government created Telesecundaria? a. to provide inexpensive,enjoyable television shows b. to provide education in rural areas*** c. to teach people how to grow successful gardens d. to encourage young adults to choose

asked by Kaai97 on October 29, 2015
39. Language Arts

Which question should you ask during your first read of the multi-draft reading process? A. what is the authors purpose in writing this piece ? ** B.how has this work increased my knowledge of a subject , issue , event . C. what evidence does the author

40. income tax

Which of the following expenses is deductible, but subject to the 2% limitation on Form 1040, schedule a;job expenses and most other miscellaneous itemized deductions? a. a blue suit for an accountant b. appraisal fees on the sale of a personal residence

asked by Lourane on December 13, 2012
41. tax

Which of the following expenses is deductible, but subject to the 2% limitation on Form 1040, Schedule A; Job Expenses and Most Other Miscellaneous Itemized Deductions? A. A blue suit for an accountant B. Appraisal fees on the sale of a personal residence

asked by Andy on March 7, 2012
42. Health care

The annual list of the OIG's planned projects for sampling billing in various settings (such as hospitals, doctor's offices, and long-term care facilities) to check for potential fraud is called the A. triggered review. B. OIG Work Plan. C. Deficit

asked by Anonymous on August 26, 2017
43. US GOV- Research Paper

I'm writing a research paper about Bernie Sanders. It includes a short biographical background, information about his time in the House and the Senate, and his beliefs on 3 major issues: racism, foreign policy, and healthcare. I've written most of the

asked by Anon on January 8, 2018
44. ALLIED HEALTH

The main purpose of a peer review committee is to A. identify activities that suggest guidelines aren’t being followed. B. establish procedures for confidentiality of incident reports. C. examine the work habits of individual employees who have access to

asked by COLLINS on January 22, 2011
45. Sentence Check 2

Judy and Martin Reed exemplify the old saying ¨Opposites attract¨. A(n) ___, Judy chooses work that brings her into constant contact with others. ____, Marty Prefers Jobs In which he mainly works alone. (Word Choices) Charisma Contemporary Contend

asked by Paco H. on February 12, 2019
46. Language

Judy and Martin Reed exemplify the old saying "Opposites attract". A(n)___, Judy choose work that brings her into constant contact with others. ____, Marty prefers jobs in which he mainly works alone. }Word Choices{ Charisma Contemporary Contend Conversely

asked by Pepe on February 8, 2019
47. Physics

A 1 kg mass is hung at the 0 mark of a meter stick and a 3 kg mass is hung at the 100 cm mark of the same meter stick. If the mass of the meter stick is 0.2 kg, at which of the following points of the meter stick could you balance the system on one finger?

asked by Megan h. on June 8, 2014
48. social studies

1.  Is it reasonable to say that José Gutiérrez de Lara was an important part of Mexican independence?

asked by my ship Aphmau x Aaron on October 23, 2018
49. Physics

Safety engineers estimate that an elevator can hold 20 persons of 65 kg average mass. The elevator itself has amass of 450 kg. Tensile strength tests show that the cable supporting the elevator can tolerate a maximum force of 2.94e4 N. What is the greatest

asked by Anonymous on September 19, 2007
50. math

Is this correct. Graph each of the following inequalities. 4x + y (greater than or equal to) 4 My answer: y= -4x + 4 Y= mx + b For b = (0,4) For x = (-4 , 0) The line will be a straight line across the positive codent to the negative crodant In the first

asked by jasmine20 on December 23, 2006

Solve and graph(using words)the inequalities.Then describe the graphs using words. Example:x>5andx

asked by margie on March 25, 2007
52. math

Larry borrowed \$12,000 from his grandfather to buy a car. He bought a used car, so, he returned \$4,411 to his grandfather. Write and solve an equation using integers that shows the total amount that Larry owes his grandfather.

asked by googoo on March 26, 2011
53. Algebra 1

a farm raises a total of 220 chickens and pigs. The number of legs of the stock in the farm totals 520. How many chickens and pigs are at the farm? Define the variables and write two equations to solve the answer.

asked by Anonymous on March 18, 2011
54. Physics

Surprisingly, very few athletes can jump more than 2.7 ft (0.82 m) straight up. Use d = 1/2 gt2 and solve for the time one spends moving upward in a 0.82 m vertical jump. Then double it for the "hang-time" -- the time one's feet are off the ground. Can you

asked by Alfonso on September 14, 2013
55. Chemistry

A sample of C3H8 has 2.64 x 10^24 atoms. How many carbon atoms does the sample contain? What is the total mass of the sample? I don't even know where to start i mean it seems like a really simple question but the prof hasn't been through this topic. Im

asked by Alejandra on September 24, 2011
56. physic

A ball is thrown toward a cliff of height h with a speed of 28m/s and an angle of 60∘ above horizontal. It lands on the edge of the cliff 3.3s later. a) How high is the cliff? i got -29.2 m but my answer is wrong b) What was the maximum height of the

asked by sara on October 21, 2014
57. Math

A company will make a cereal box with whole number dimensions and a volume of 100 cubic centimeters. If cardboard costs \$0.05 per 100 square centimeters, what is the least cost to make 100 boxes? Please help me, I have no clue how to solve.

asked by Helen on April 5, 2016
58. Bio/math?

The DNA in a human cell weighs approximately 2.0 x 10-12 grams. Calculate how many cells you would need to use to isolate 1 mg (milligram or 1x10-3 grams) of DNA, assuming you can get all the DNA out of a cell. I honestly don't know how to start and solve

asked by Luna on February 11, 2019
59. algebra

two junked cars were sold at auction to a buyer who paid a total of \$2,000 for both cars. If the more expensive of the two cars was \$240 less than three times the price of the cheaper car, how much was the more expensive car? how do I solve this word

asked by Rose on October 8, 2008
60. Physics

A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 12.6 m higher than A, with speed v/2. Calculate the maximum height reached by the stone above point B. I was told the equation to this was "h=1/2(v2)^2/g."

asked by Lindsay on October 7, 2007
61. Math

Lisa is painting a fence that is 26 feet long and 7 feet tall. A gallong of paint will cover 350 square feet. Write and solve a proportion to determine how many gallons of paint Lisa will need. Thanks, Ms. Sue for the last one...I got it!

asked by Garrett on January 20, 2012
62. chemisty

what will be the mass of angydrous Alum left over if one starts with 100.00 g of hydrated Alum? please can you explain what fraction do I need to use. Based on the given information I can find the %theoretical of water in angydrous Alum. But I still don't

asked by Jay on October 21, 2010
63. Math

When trying to solve arctan(sqrt 567.2 / -459.6) my answer was -2.96. My teacher said that i handled the radical wrong. She said I have to square both numbers, then add them, and then find the square root. I am confused because you cannot take the square

64. Pre-Calc

Ok, so the problem was about a person with 300 feet of fence to make a rectangle enclose. The person also wanted to use the fence to split the enclose to two parts with the fence paralel to two of the sides. Find the dimensions So I am confuse on how to

asked by Sakura on October 18, 2011
65. Algebra

How do I set this up to solve? In 2004, the Diabetic Express charged \$27.06 for a vial of Humulin insulin and \$34.39 for a vial of Nevolin Velosulin insulin. If a total of \$1565.57 was collected for 50 vials of Insulin, how many vials of each type were

asked by Bob on May 18, 2008
66. Calculus

The radius of a tank can not exceed 5m, and the height can not exceed 12 m. Is it possible to construct a tank with a volume of 900m^3? If it is possible, determine the minimum amount of material required to make the tank. When i solve it, the radius

asked by Jeff on March 19, 2010
67. math

A farmer plants corn and wheat on a 180-acre farm. The farmer wants to plant three times as many acres of corn as wheat. Write a system of linear equations that represents this situation. Use xx to represent the number of aces of corn planted and yy to

asked by traci on March 4, 2019
68. physics

Specific heat capacity of a certain metal is found by heating the metal and then placing it into water which is in a container made of the same material. The metal has mass of 100g and is heated to 100 degrees celsius. The container has mass of 200g and

asked by Micheal on November 22, 2016
69. Accounting

Panarude Airfreight is an international air freight hauler with more than 45 jet aircraft operating in the United States and the Pacific Rim. The firm is headquartered in Melbourne, Australia, and is organized into five geographic areas: Australia, Japan,

asked by Jamal on July 4, 2011
70. math

Susan has 50ft of fencing to use to build a garden in her backyard. A: The shape must be a rectangle/square. B: Sketch at least five different examples that Susan could use for her backyard and state what the perimeter of each one is. C: The most important

asked by Evelyn on January 9, 2011
71. Geography

i need to label a diagram of the drainage basin of the River Tees. the words i have got to use are:- Tributary Mouth Confluence Source Reservoir Also i need to colour the diagram to show the relief of the drainage basin. A)Shade the river and its

asked by ZAC on January 30, 2009
72. Geometry

Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains, leave the station at the same time, after

asked by Ashley on March 14, 2016
73. math

The Johnson family has been very busy and has not done their laundry for several weeks.The dirty laundry pile consists of 540 item of clothing.They figure they can put on average of 27 pieces of clothing in a single load.How many loads of laundry will the

asked by Anonymous on January 4, 2016
74. Sequence

Find the common difference and a formula formula for the nth term of the arithmetic sequence; 6, 2, -2, -6, -10,...a sub n = a)6-4n b)6-2n c)10-2n d)10-4n I think it is c but want to check. Ao is 10, then each term subtracts 4n from it....n=1, ... well if

asked by raven31792 on March 9, 2007

hi can you profread this for me? None of them were looking forward to the task ahead. First, Lori distributed the shovels; one to each person. The shovels were heavy, long-handled brutes that promised to feel like iron weights before the work was half

asked by jay! on September 20, 2006
76. math

Jim wants to deposit money in an account to save for a new stereo system in two years. He wants to have \$4,000 available at the time. The following rates are available to him: 6.2% simple interest 6.1% compounded annually 5.58% compounded semiannually

asked by HG on October 22, 2009

1.which of the following were found to destroy ozone in the upper atmosphere? A. sulfur oxides B. cfcs(i pick this) C. nitrogen oxides D. carbon dioxide 2.which of the following sets of terms is associated with air pollution caused by burning fossil fuels?

asked by matt on December 20, 2013
78. statistics

A realty company has 100 homes listed for sale. Some of these homes have fireplaces, some have garages, and some have neither. A breakdown is provided in the two-way classification table below. Fireplace No Fireplace Garage 50 30 No Garage 10 10 what is

asked by Alecia on June 1, 2013
79. math

how can you get the answer 16 using these numbers 4,3,2,1=16 you can not use any number more than one time. Help! 3-1=2 2x2=4 4x4=16 Bold face type show numbers in the problem. please help You need to post a question before we can help. Just click on the

asked by lorraine on September 13, 2006
80. algebra

could you please help me? john needs to earn \$693 to pay for trip. he finds job that pays \$7 per hour and he mows lawns for \$9. an hour a. write an inequality describing his goal in terms of hours at his job, x, and hours mowing lawns, y . i wrote 7x + 9y

asked by ann on January 30, 2012
81. Math

the probability it will snow in the next weeks is 1/12 for this week and 1/4 for next week.what is P(snow this week,then show next week? A)1/8 B)1/16 C)1/24 D)1/48 ***

asked by Anonymous on February 28, 2018

When a number is divided by 5 and then 3 is subtracted, the answer is the same as when the number is divided by 4 and then 2 is subtracted. Is it 0? How do I show?

asked by lisa on September 27, 2016
83. Alge.

Graph the equation using the slope and the y-intercept. y=5/3x+2 I need to show the slope and y-intercept when I graph.

asked by Craig on May 26, 2010
84. math

let a = 2, b = -5, c = 7, and d = -4 Question ~ Evaluate b – a(cd + b) This was my answer ~~ Evaluate b – a(cd + b) (cd+b)=-33 (7)(-4)+(-5) (7)(-4)=-28 (-28)+(-5)=-33 (-5)-(2)((-33)) (2)((-33))=-6 (-5)-(-6)=1 Can someone help/show me how to answer this

asked by abby on September 4, 2015
85. Math

Ft is a periodic function with a period of 7 and an amplitude of 3. What is the period and amplitude of the function g(t)=-2f(1/3t)-5? Can someone show me what I need to do?

asked by Austin on May 17, 2013
86. Math

Ft is a periodic function with a period of 7 and an amplitude of 3. What is the period and amplitude of the function g(t)=-2f(1/3t)-5? Can someone show me what I need to do?

asked by Austin on May 17, 2013
87. math

if tan a +sin a= x tan a -sin a= y show x square - y square=4 rootxy

asked by urjita on July 12, 2015
88. math

the probability it will snow in the next weeks is 1/12 for this week and 1/4 for next week.what is P(snow this week,then show next week? A)1/8 B)1/16 C)1/24 D)1/48

asked by HELP ME PLZ! on June 5, 2014
89. Math

Show that log base b [(x + (sqrt x^2-5))/5] is equal to -log base b (x-(sqrt x^2-5))

asked by Leslie on March 18, 2015

Thanks Ms. Sue! I have other sentences I would like to try to get right. 1. Mr. Morton, the best reading teacher in the world, taught me sentence structure. Complex: Mr. Morton taught me sentence structure = indep & best reading teacher in the world = dep

asked by Alex on November 26, 2012
91. chemistry

What would be the concentration of dinitrogen pentoxide after 6.00 X 10(2) seconds and how long would it take for the concentration of N2O2 to decrease to 10.0% of its initial value in the following equation... N2O5 to NO2 and O2 initial concentration is

asked by Chris on January 21, 2013
92. Algebra HELP:(

I am terrible at word problems. How do I work this? A large park is to be built in the shape of a rectangle. The length is to be 5 m shorter than three times the width. The perimeter of the park is to be 750 m. What will be the length and width of the

asked by bb on June 8, 2010
93. 11

How do I work this problem? Flying with the wind, an airplane can travel 1080 miles in six hours, but against the wind, it goes 360 miles in half the time. Find the air speed and wind speed

asked by Judy on December 5, 2011
94. physics

A gasoline engine runs with 28 percent efficiency. It expels 3.60x10^4 J of heat in each cycle. a. Find the heat absorbed in one cycle. 128,571.4????? b. Find the work output in one cycle.

asked by anonymous on February 19, 2007
95. science

calculate numerical value of current in inductor resistant circuit. l=1mH r=3k (ist=1ma at t=0) i1(t=1us)in ma. i0=1ma my work. i=i0(1-e^-(t/T)) 1*10^-3(1-e^(-1/0.33) i=0.952ma this is wrong do I need to add initial current to this(1ma). why is this

asked by bearinthewoods on February 4, 2016
96. Math

A fertilizer covers 5/8 square foot in 1/4 hour. i don't understand how to work out this math problem. By the way i'm in 6th grade but technically doing advanced math so i'm doing 7th grade math. I don't know how to do this

asked by niki on September 21, 2016
97. Physics

A block rests on a horizontal, frictionless surface. A string is attached to the block, and is pulled with a force of 45.0 N at an angle è above the horizontal, as shown in Figure 7-23. After the block is pulled through a distance of 1.50 m its speed is v

asked by Anna on March 1, 2012
98. physics

A 1,500 kg car starts from rest and accelerates to a speed of 12 m/s over a distance of 68 m a) calculate the total work on the car b) calculate the net force that caused the car to accelerate (constant force)

asked by cee on May 4, 2014
99. Physics

At the top of a pole vault, an athlete actually can do work pushing on the pole before releasing it. Suppose the pushing force that the pole exerts back on the athlete is given by F(x)= (150 N/m)x - (180N/m^2)x^2 acting over a distance of 0.20 .

asked by blah on March 22, 2011
100. Math

Four students work to find an estimate for square root of 37. Who is closest to finding the true estimate? A. Ricardo: 6 B. Rhonda: 5 C: Riley: 7 D: Ryan: 8 My answer is either Ricardo or Riley. I'm thinking Riley

asked by Dean Winchester on November 8, 2016