# 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

91,330 questions, page 391
1. ## va.studies

in virginia history,when i asked what is being described using the terms that show connection between two places,it is referring to a certain place,that was probobly misworded on my part

asked by susie on September 8, 2009
2. ## FSK 114

show that the ray of light ,on passing through the parallel sided slab of refractive index n, undergoes a lateral displacement.

asked by Limema on April 13, 2011
3. ## vectors

Show that a¡Á(b c) = (a¡Áb) (a¡Ác), given that a =(A B), b =(B C), c =(C A). WORKINGS ... given, a¡Á(b c) = (a¡Áb) (a¡Ác) :. imputing the values of a, b and c (A B)¡Á[(B C) (C A)] = [(A B)¡Á(B C)] [(A B)¡Á(C A)] solving for a¡Á(b c)

asked by Francis on January 26, 2015
4. ## Calculus

Show by vector calculation that the bisector of the angle between the two equal sides of an isosceles triangle bisects the third side and is perpendicular to it.

asked by Anonymous on May 13, 2012
5. ## Science- Meteorology

Most climate models show that the poles will warm faster than the tropics. What effect will this have on winter storms in the mid-latitudes?

asked by Kelly on February 10, 2010
6. ## Math

The sequence < un > is defined by the recurrence Un+1 = 3Un+1\5Un+3 initial condition of u1 = 1: Need to show un in terms of Fibonacci / Lucas numbers

asked by Kate on November 16, 2016
7. ## math

new york 1,250 feet tall 103 floors rounded to nearest whole what is the height of each floor?and show the steps

asked by kahron on August 26, 2013
8. ## math

A shopper uses a department store gift card to pay for 3 sweaters priced at \$27 each. What integer can be used to show the amount of change?

asked by Melanie on September 27, 2015
9. ## us history

A great deal of america's success can be traced to the impacted of inventions. Show how several of these developments helped the country to grow.

asked by Tyana on November 17, 2010
10. ## English writing

Please ASAP can someone give me an introductory paragraph on the Truman show and the giver with the title and author and the thesis statement ? Please just an idea I need help

asked by Jessica on December 13, 2012
11. ## physics

Show that the critical velocity of body revolving in cercular orbit very close to the surface of a planet of radiuis R and meandencity.

asked by Anonymous on August 7, 2014
12. ## Fibonacci Sequence

The sequence < un > is defined by the recurrence Un+1 = 3Un+1\5Un+3 initial condition of u1 = 1: Need to show un in terms of Fibonacci / Lucas numbers

asked by Kate on November 16, 2016
13. ## calculus

A circle is formed with a center (-3, 5) and a radius 4 write a pair of parametric equations then show how to return to rectangular form

asked by brady on April 26, 2013
14. ## Math

The first question is show how to make one addend the next tens numbers. Complete the new addition sentence: 15 + 37= I need a break down to how to to figure this out. Please.. I have no clue what to do.

asked by Paula on October 24, 2016
15. ## math

Determine the volume of perfume that would fit into each container. Show calculations to support your answer cylinder h=12.4cm r=6.2cm please help

asked by lisa on April 30, 2016
16. ## Hydrodynamics

Consider a 3-D source of strength m in a uniform flow of U. Show that the asymptotic radius of the modeled body at infinity is: R0=2*SQRT( m/(4πU) )

asked by Johan on April 3, 2019
17. ## Science urgent

A.) Show how vertical multiplication can be used to do a charge balance if Zn2+ combines with Cl- b.) Write the chemical formula name for the compound that would be formed

asked by Anonymous on March 9, 2014
18. ## DVC

use the inverse square law to show that in space shuttle territory, 200 kilometers above 94 percent of that at earths surface??

asked by Anonymous on March 1, 2013
19. ## math

Writing in Math To find the sum of 4/9 and 7/12, Mario rewrites the fractions as 8/36 and 21/36. His answer is 29/36. Is Marion right? If not, show his error and correct it.

asked by LAKSHMI on January 10, 2015
20. ## Chemistry

Write an equation to show the dissolving of the following substance in water. (NH4)2SO4(s) NH42SO4 + H2O -> 2NH4 + SO4 + H^+ + OH-?

asked by sh on February 9, 2010
21. ## Math

Writing in math Braden and bialy each bought a kazoo for \$0.89.they each paid with a \$1.00 bill. Explain two different ways to show their change.

asked by Anthony on December 6, 2012
22. ## Algebra

suppose a pendulum use to show the rotation of the earth has a period of approximately 16.9 seconds. What is the length using formula T=2pi sq root L/32

asked by Roslyn on August 23, 2015
23. ## physics

brakes are applied in bringing in a 1200-kg car moving at 25 m/s to rest in 20.0 s. show that the amount of braking force is 1500n.

asked by jasmin on October 29, 2012
24. ## geometry

"draw a trapezoid whose parallel sides measure 1 inch and 1 1/2 inches. find the lenght of the midsegment." show me how to do it and the answer

asked by peaches on May 24, 2012
25. ## social study

Give an example to show that contemporary racism is viewed as being a remnant of past historical racial situation. Please help me with this; I have hard time to come up with an example Many thank

asked by Anonymous on May 28, 2009
26. ## algebra

give a counter example to show that each statement is false, the domain of each variable is the set of real numbers..... number 1 said 1. if a2=b2, then a=b idk how yo do it??

asked by josh on October 21, 2009
27. ## Probability

Roll four dice one time. What is the probability that the sum will be odd?Can anyone explain/show in detail how to find the answer to this problem?

asked by Diane on September 12, 2010
28. ## Accounting

__________ accounts show the amount of money owed to the firm by customers. A. Supply B. Prepaid C. Receivables D. Payables C

asked by Angela on January 13, 2014
29. ## algebra

a cheetah ran 300 feet in 2.92 seconds. What was the cheetahs average speed in miles per hour? Please show steps.THANKS!!

asked by anne on May 30, 2016
30. ## Art

I know this is probably a dumb question but, I have a project due and in the instructions it says "Use a variety of media to show building materials such as brick and stone". What exactly does that mean?

asked by Daren on April 16, 2018
31. ## math

does anyone know a website which shows the 8 types of parents graphs that show their properties( domain, range, assymptotes, minimum or maximum)?

asked by bill on May 12, 2008
32. ## disease

Ct scans show evidence of multiple lesions in the white matter of the brain and spinal cord. What nerve disease could this be?

asked by Leslie on April 20, 2011
33. ## Physics

How fast (in rpm) must a centrifuge rotate if a particle 69-cm from the axis of rotation is to experience an acceleration of 200438 g's? (can you show me how you get the answer) be thorough

asked by HELP on September 18, 2017
34. ## Math

__________ accounts show the amount of money owed to the firm by customers. A. Supply B. Prepaid C. Receivables D. Payables C

asked by Angela on December 19, 2013
35. ## physics

show a car that travels 5 km due east and makes a u-turn to travel another 3 km find distance covered and its displacement

asked by same on August 21, 2014
36. ## English

Complete the following sentence with a word or words that show a logical relationship. Joshua took a nap _______ sorting the mail. A. after B. instead of C. while D. before

asked by Nicole on January 7, 2014
37. ## Chemistry

The starting material in this synthesis experiment Fe(NH4)2(SO4)2*6H2O. What is the ionic charge of the atom? Show your calculations

asked by Tyler on March 17, 2015
38. ## basic english

Complete the following sentence with a word or words that show a logical relationship. Joshua took a nap _____ sorting the mail.

asked by sally on September 23, 2013
39. ## Business Finance

If a bank borrows \$550,000 from the FED on Friday and repays it on Monday show how it should be written on a T-account for this transaction

asked by Sally on May 14, 2011
40. ## physics

describe the force board experiment to show how to obtain the resultant of two non-parallel coplanar forces acting at a point.

asked by ruth on September 12, 2018
41. ## Calculus-Series

Sigma with n=1 to n= positive infinity (x^3)* (e^(-x^4)) Does it converge or diverge and use the integral test to show how. I got that it diverges, but this isn't correct. Can someone please explain? Thanks.

asked by Lisa on July 29, 2013
42. ## Chemistry

What volume of 0.250M KOH is required to titrate 2.30 x 10^3 mol of the weak acid H2C2O4 ? I know the answer is 18.4, but can you show the process?

asked by Chemistry on June 14, 2012
43. ## box and whisker plot

Make a box and whisker plot with the following statement:The data show the ages of 13 people attending a dinner party. 37, 42, 44, 46, 47, 49, 51, 53, 54, 55, 57, 61, 63

asked by Mary Ann on June 10, 2014
44. ## Simple Math

In 10 years, Mr. Yen will be twice as old as his daughter. Their ages now add up to 61. How old is each person. Can you show me all the steps because I have a unit test tmw:) thankyou

asked by SHINee on November 28, 2013
45. ## Logic

Use Propositional Resolution to show that the clauses {p, q}, {¬p, r}, {¬p, ¬r}, {p, ¬q} are not simultaneously satisfiable. Proof takes 8 steps including the premises and the goal.

asked by qwerty on October 23, 2014
46. ## grade 12 chem

write equations to show the synthesis pathway for ethyl-3-hydroxybutanoate. An alkane and alcohol of your choice are the starting materials.

asked by time on March 9, 2010
47. ## Physics

If a disk and hoop are released simutaneously 1.0m above the ground at a 30 degree incline which one will reach the bottom faster? Show mathematically.

asked by Anonymous on October 30, 2012

Determine algebraically if f(x) =(7x-2) / (4). And g(x) = (4x+2) / (7) are inverse functions. Show how you know, I do not understand this type of problem i have a test on these tmrw and need some help with how to figure these out pls help.

asked by Anyki. on December 14, 2017
49. ## geomtery

IN ABC, m

asked by pam on December 21, 2015
50. ## physics

brakes are applied in bringing in a 1200-kg car moving at 25 m/s to rest in 20.0 s. show that the amount of braking force is 1500n.

asked by jasmin on October 29, 2012
51. ## math

turn this equation: X2 (X to the second power)+16x+15x I'm suppose to use the Distributive Property to factor this expression......HOW?!?!?!? And I also have to show the steps. how?!?!? please help!!

asked by Ashlie on February 14, 2007
52. ## math 116 Help Please

1. Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: C(g) = 3.5 (g) a) Find C(2) (2 pts.) b) Find C(5) (2 pts.) 2. Suppose that the linear

asked by Sydney on September 8, 2010
53. ## Economics

If the labour supply curve is nearly vertical, a tax on labour 1. has a large deadweight loss. 2. will raise small amounts of tax revenue. 3. has little impact on the amount of work workers are willing to do. 4. will raise small amounts of tax revenue and

asked by Johnny on June 6, 2011
54. ## math

1. Use the given arithmetic sequence to answer the following problems. Arithmetic sequence: 10, 15, 20, 25, 30, …. a. Use the formula to find the 75th Term of the given Arithmetic Sequence I. Formula: II. Work: b. Use the formula to find the nth Term of

asked by angell on March 20, 2009
55. ## astronomy

You are a pulsar astronomer, and you have been measuring the pulses from a particular milli-second pulsar for several hundred days. You find that they do not arrive at regular intervals - sometimes they arrive a little early and sometimes a little late.

asked by juanpro on June 29, 2014
56. ## Chemistry problem

Hi I'm stuck on these questions can you please help me A soil sample contains 0.2234 g of Fe3+ per 100g. Fe3+ is precipitated when the soil becomes alkaline as shown in the equation below. Fe3+ + 3OH- + (x-1)H2O „_ FeOOH.xH2O(s) This soil is sprayed with

asked by Sarah on March 26, 2010
57. ## Math-Algebra

1. The length of a rectangle with a constant area varies inversely as its width. The length of this rectangle is 8in when its width is 3in. Find the length when the width is 4in. 2. The number of people working on a certain job varies inversely as the

asked by Mckenna Louise on November 24, 2013
58. ## math

Enrique charges \$5 for every 1/5 hour he spends walking dogs. In the morning he walks Buttons for 2/5 hour, Bruno for 1/5 hour, and Pepper for 3/5 hour, Monday through Friday. On Saturdays he takes Mimi, Diva, and Coco to the dog park for 4/5 of an hour.

asked by John on March 28, 2014
59. ## Science -- Check my answers!

Which of the following has the most significant impact on the environment? Natural Disasters Humans *** Ecosystems Carbon Dioxide Which step of the scientific method applies to the following scenario? Rick wants to know if rising carbon dioxide levels in

asked by Anonymous on December 19, 2017
60. ## math

Enrique charges \$5 for every 1/5 hour he spends walking dogs. In the morning he walks Buttons for 2/5 hour, Bruno for 1/5 hour, and Pepper for 3/5 hour, Monday through Friday. On Saturdays he takes Mimi, Diva, and Coco to the dog park for 4/5 of an hour.

asked by suri on March 28, 2014
61. ## Indicators and Solutions

Which indicator is used to check for the presence or absence of simple sugars? What indcates the presence of simple sugars in a solution? What indicator is used to check for the presence of starch? What indicates the presence of starch in a solution?

asked by Mia on December 4, 2007
62. ## Math help plz

How thick is a pile of paper? Find a relationship between the number of folds and the number of layers. Note your observations. Number of folds Number of layers 0 1 1 2 2 4 3 8 4 14 5 23 Plz help im so stuck on this question Are you sure 4 14 and 5 23 are

asked by Jessie on October 15, 2006
63. ## Chemistry

I am so confused with my chemistry lab right now. We were given the following equations to work with: [Equation 1] 2 I^- + H2O2 + 2 H^+ ----> I2 + 2 H2O [Equation 9] 2S2O3^2- + I2 ----> 2I^- +S4O6^2- And During the Experiment we used the following for each

asked by Bev on September 20, 2014
64. ## chemistry

standard enthalpies of formation H20(l) = -286 LiOH(s) = -487 standard enthalpies of solution for LiOH(s) to split into it's ions is 21 all values are in KJmol-1 Use the data given to calculate a value for the enthalpy change for the reaction of lithium

asked by Gemma on February 8, 2011
65. ## Physics - Newton's 2nd Law of Motion

Under the action of a constant net force, a 3.1-kg object moves a distance of 15 meters in 8.99 seconds starting from rest. What is the magnitude of this net force? I got the answer of 0.58 Newtons, but the book says the solution is 1.2 Newtons. To get

asked by Mike on February 24, 2007
66. ## Computers

Help guys..here is what I need.. and unfortunately I need this in like 2 hours...my computer crashed with all my work so please anyone help... Write a console application that has a furniture and appliance dealership needs you to create a sales screen to

asked by Kevin on May 6, 2013
67. ## accounts

on july 01,2000, asok ltd. purchased a machine for Rs.1,08,000 and spent Rs.12000 on its installation.At the time of purchase it was estimated that the effective commercial life of the machine will be 12 years and after 12 years its salvage value will be

asked by priyanka on October 26, 2012
68. ## Chemistry

Given four unlabeled compounds and four labels (potassium sulfate, potassium carbonate, chromium sulfate, and cobalt bromide) is there a simple test that will allow correct labelling of each compound? I take we are looking for a simple school lab type

asked by Fiona on April 13, 2007
69. ## Economics

4 (ii) You manage Dirt Diggers, an excavating firm that excavates roadside ditches for laying drainpipes. Its output follows the production function: Q = 10L -.1L2 where L denotes labor hours and Q the length of the ditch in meters. You can hire labor at

asked by Michelle on May 25, 2011
70. ## Algebra

You commute 56 miles one way to work. The trip to work takes 10 minutes longer than the trip home. Your average speed on the trip home is 8 miles per hour faster. What is your average speed on the trip home? I don't understand why it has to be converted to

asked by JIM on September 24, 2007
71. ## Math stem question

The main span of a suspension bridge is the roadway between the bridge's towers. The main span of the Walt Whitman Bridge in Philadelphia is 2000 feet long. This is 600 feet longer than two-fifths of the length of the main span of the George Washington

asked by Kennedy on January 12, 2015
72. ## math

The main span of a suspension bridge is the roadway between the bridge's towers. The main span of the Walt Whitman Bridge in Philadelphia is 2000 feet long. This is 600 feet longer than two-fifths of the length of the main span of the George Washington

asked by Kennedy on January 12, 2015
73. ## Business Math

Estimate the cost of ending inventory for August for Roman's Jewelry Store using the retail method on the following data: Cost Retail Beginning inventory for August \$180,000 \$288,000 Purchases during August \$70,000 \$112,000 Net sales during August \$80,000

asked by Lecreshia on October 16, 2011
74. ## artist

1. The artwork pictured here best represents which message? a) Ideas and creativity can be shown with many different tools. b) It is important to use one type of tool because you understand how to use it. c) People can be limited by their ideas. d)

asked by Sarah on October 30, 2014
75. ## physics - energy

1) What are the 3 basic forms of energy? Since there are so many, I'm thinking of kinetic and potential, but what would be the third? 2)The increase in potential energy of any system is equal to the output ___.

asked by kriti on March 5, 2011
76. ## physics

How much force will be required to move a seesaw system which is balanced with 50 kg weight on both side to move it 4 centimeter towards up and down side (linear motion).

asked by vikram on September 4, 2016
77. ## physics

A 240 g ice cube at -10 C is placed in an aluminum cup whose initial temperature is 70 C. The system comes to an equilibrium temperature of 20 C. What is the mass of the cup?(answer in kg)

asked by ana on December 2, 2009
78. ## math

* not multiple choice* 2/3n = 8 solving the system of equations 4x + 3y = 13 y= -x +4 * not sure how to do this the slope intercept form of the function that contains the point (-3, 2) and has a slope of -2? my answer: y= -2x + 6 -1 + 5(6-y) my answer is

asked by Anonymous on December 18, 2014
79. ## physics

An automobile cooling system holds 16 L of water. The specific heat of water is 4186 J/kg⋅C∘.How much heat does it absorb if its temperature rises from 16∘C to 94∘C?

asked by Anonymous on June 4, 2014
80. ## criminal justice

1.Which option (front-end solutions, double bunking, or back-end solutions) do you feel is the most effective in our correctional system?

asked by Sasha on February 11, 2010
81. ## Physics

What does it mean to say that angular momentum is conserved? Give an example you might see on Earth. How could conservaton of angular momentum help astronomers understand the development of the solar system?

asked by Riley on October 14, 2009
82. ## Economics

What economic impact does a recession have on the finances on a health care facility? On the health care system? Could you direct me to a web site

asked by peg on September 20, 2011
83. ## Science

ok i cant bare to see pictures of spiders, i have very high arachnipobia, so can soemone plz tell me how the arachnid digestive system works? and plz no pictures.

asked by Logan on June 1, 2008
84. ## health care

The Roemer Model of Health Services Systems is only applicable to the US health services system? Choose one answer. a. True b. False

asked by venkateshwar reddy on January 15, 2011
85. ## Physics

What does it mean to say that angular momentum is conserved? Give an example of what you might see on Earth. How could conservation of angular momentum help astronomers understand the development of the solar system?

asked by Kayla on October 14, 2009
86. ## Algrebra-Systems of Equations

A collection of dimes and quarters is worth \$19.85. There are 34 more dime than quarters. Write a system of equations that can be used to find how many of each type of coin there are in the collection.

asked by Resha on January 19, 2012

1. The sum of the squares of two numbers is 74 and the difference of their squares is 24. a) What system of equations models this situation? b) What are the two numbers? 2. For what value of b will the line y= -2x+b be tangent to the parabola y=3x^2+4x-1?

asked by Anthony on June 18, 2015
88. ## Computer

For which operating system is exFAT NOT an option when formatting a partition? A. Windows XP with SP3 B. Windows XP with SP2 C. Vista with SP1 D. Vista

asked by Nikki on January 18, 2013
89. ## math

Saying that 4

asked by Cliff on July 26, 2010
90. ## physics

a horizontal wire is stretched between two vertical poles. when a 12.0-N weight is suspended at its center, the wire sags until the angle between its halves is 110 degrees. what are the forces exerted by each half of the wire in supporting the weight? i

asked by Katrina on November 12, 2006
91. ## French (URGENT)

You are vacationing in Paris. Describe the Hotel and Restaurant. Can someone please check my work? The atmosphere at L’Atelier de Joël Robuchon is so very different from any other French dining experience. You sit around the kitchen on high stools. Can

asked by Larry on June 15, 2009
92. ## social studies (CHECK ANSWERS)

1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders.(I PICK THIS) C.It ended the revolution. D.It lessened the power of the president. 2. It is hard

asked by annabelle on January 29, 2014
93. ## Algebra

For parts (a)–(c) use the following equation: y = 2/(x + 6). (a) Find the ordered pair that represents a solution to the equation when the value of x is 0. 0 , (b) Find the ordered pair that represents a solution to the equation when the value of y is 4.

asked by Autumn on September 7, 2008
94. ## Acids and Bases

NaOH was added to 1.0 L of HI(aq) 0.40 M. Calculate H3O in the solution after the addition of .14 mol of NaOH. Calculate H3O in the solution after the addition of 0.91 mol of NaOH.

asked by Kaitlyn on March 23, 2011
95. ## Chemistry-Help Please!

@ 20 Celsius - 22g CuSO4 / 100g H2O @ 40 Celsius- 42g CuSO4 / 100g H2O Using this, answer whether these are saturated or unsaturated @ 40 Celsius is 5g CuSO4 / 10g H2O @ 40 Celsius is 99g CuSO4 / 250g H2) I was told that the first one is unsaturated and

asked by Julie on May 19, 2011
96. ## Social Studies

Which of the following statements best summarizes the information provided on the chart? (1 point) The Articles of Confederation gave too much power to the individual state governments. Most of the Articles of Confederation’s weaknesses related to the

asked by Anonymous on September 20, 2017

A cross between true breeding tall red flowered plants and true breeding short white flowered plants. Tall and red are dominant traits. What would be the expected ratios of phenotypes in the f1 and f2 generations? what is the exoected ohenityouc ratui if

asked by Jose on April 17, 2007
98. ## Social Studies

2. The new boundary line set by the Adams-Onis Treaty had which of these effects? A.) It created a system of dual governance in Florida. B.) It represented the completion of Manifest Destiny.**** C.) It began the decline of Spain's New World empire. D.) It

asked by James on March 9, 2016
99. ## Physics

(a) Determine the amount of work (in joules) that must be done on a 104 kg payload to elevate it to a height of 993 km above the Earth's surface. ______ MJ (b) Determine the amount of additional work that is required to put the payload into circular orbit

asked by Jeannine on June 11, 2007
100. ## Biology

What is an ecological property? Would the Belize Barrier Reef Reserve System be an ecological property? Or would the Los Katios National Park be a better option?

asked by Lola on April 30, 2010