# 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 64
1. ## maths sir-reiny help calculus

solve the differential equation (x^2-xy+y^2)dy-xydx=0 plz show me working

asked by samuel on October 1, 2016
2. ## Math Algebra II

I am confuse how to solve a relation function such as f(x) = 1x -12. show me example on how resolve this problem

asked by Xavier on June 18, 2013
3. ## Business & Technology

1. When a hurricand, flood, or pandemic strikes a country, who is most likely to respond. 2. Which economic system is the best solution for handling a crisis of epic proportion?

asked by Deb on May 5, 2011
4. ## college

When a hurricane or flood or a pandemic strikes a country, who is most likely to respond first? Which economic system is the best solution for handling a crisis of epic proportion?

asked by Shurneke on March 2, 2011
5. ## MATH

Determine graphically whether each given point is a solution to the system of linear equations. y = 4x-9 y = -2x+3 (2, -1) Is there any good online graph which could help me plot the points and stuff?

asked by Anonymous on January 5, 2011
6. ## CHEMISTRY FOR DR. BOB or anyone else

A hypothetical weak acid HA, was combined with NaOH in the following proportions: 0.20 mol HA, 0.08 mol NaOH. The mixture was then diluted to a total volume of 1L, and the pH measured. (a) If pH=4.80, what is the pKa of the acid (b) how many additional

asked by Delli on May 11, 2007
7. ## Please check my answer(Social Studies)

In the Mayflower compact, why do the pilgrims "all due submission and obedience"? To show that they will remain sevants of God To show that they will follow the colony's rule•• To show that they will elect a colonial leader To show that they will

asked by Josh ticklish on September 13, 2016
8. ## business and finance

An eletronics store wants to order at least 3 times as many DVD players as VHS players. Write an inequality expressing this relationship. Define the variable you use. I have no idea on how to solve this. Can somebody show me how to solve this problem? DVD

asked by Carmela on March 23, 2007
9. ## Descrete maths

Show that the following conditional statement is a tautology without using truth tables.[ p ^ ( p ! q )] ! q 8. Without the use of truth tables, determine whether ( : p ^ ( p ! q )) !: q is a tautology. show all your work

asked by Tefo sello on September 12, 2014
10. ## Math

Use the quadratic formula to solve the equation for x in terms of y and y in terms of x. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 2x^2 + 7xy + 1 − y^2 = 0 (a) x in terms of y x = (b) y in terms of x y =

asked by Liam on September 14, 2014
11. ## Algebra II

Please help me out with this The numbers 1 through 50 are written with red marker on slips of paper while the numbers 51 through 100 are written with blue marker on slips of paper. All the papers are put into a bag and shuffled. One card is randomly

asked by Me and I on April 23, 2014
12. ## DanH-Algebra 1

Solve the system of equations using the Addition method. 2a + 3b = -1 3a + 5b = -2 Margie: Roger's answer below is correct. If you don't understand it, please try and tell us what you don't understand. He makes it sound so strange can you ask him to

asked by Margie on October 14, 2006
13. ## Statistics

A statistics professor gives a test and finds that the scores are normally distributed with a mean of 25 (out of 100) and a standard deviation of 5. She plans to curve the scores in one of two ways. 1) She could add 50 points to each grade. 2) She could

asked by Nikki on July 5, 2011
14. ## Math Plz dont ignore Plz

The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans: Plan 1 : they are going to open up 1850 new seats in the endzone that will be reserved for family seating. they project that they

asked by Emmanuel on December 15, 2014
15. ## math

The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans: Plan 1 : they are going to open up 1850 new seats in the endzone that will be reserved for family seating. they project that they

asked by Emmanuel on December 15, 2014
16. ## Physics

Show that work done in a wire, E=YAsqr(e)/2l, explainthe symbols. pls help.thanks

asked by Ochuko on January 22, 2011
17. ## math

Essay: Show all work. Find the quotient: 9a^2 - 100b^2 / 3a - 10b

asked by Anonymous on August 31, 2011
18. ## Chemistry

Balance and classify (show work) Ag2O —>>>> ____+___

asked by Maria on March 26, 2019
19. ## math

How would I show my work to the math problem? 6 friends share 4 pear?

asked by ke on January 27, 2015
20. ## Stoichiometry

if you have 66.6g NH3, how many grams of F2 are required for a complete reaction? please show work!!!!!

asked by Tristan on February 7, 2010
21. ## 9th grade algebra

This is for my daughter. find the product of x^2 -4/5 X x + 2/x - 2 could you please show us the work so we can try to understand how it works?

asked by Dippy on April 9, 2009
22. ## pre - CALCULUS

Verify the identity. Show your work. cot θ ∙ sec θ = csc θ

asked by Ciara on April 9, 2015
23. ## algebra 2

Write polynomial function with the given zeros. x=1,2,3 *show work i need to be able to do this when i take my final

asked by lexi on February 22, 2018
24. ## Math

what are the horizontal and vertical intercepts :r=4-4cos(theta) please show work

asked by Mimi on April 6, 2019
25. ## Intermediate Algebra

Essay questions show work.Add the folollwing polynomials.(-1/3x^2-1/4x+3/4)+(1/2x^2-1/4x-1/2)

asked by sherry on April 4, 2012
26. ## Math

given the linear equation y=- 4/3x 1 find the y coordinates of the points (-6), (-3), and (6) show work

asked by Lisa on July 15, 2012
27. ## MathLog#4

Create a (simplified) rational function that has the following asymptotes.(show work) y=0, x=-3, x=0, and x=2

asked by Anonymous on April 3, 2012
28. ## math

divide \$ 680.00 among three children with the ratio 2:4:6 please show me how to work out the answer

asked by shane on October 22, 2009
29. ## algebra

Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20). Show your work Please help!

asked by Chloe on July 4, 2018
30. ## calculus

How do you find the points of continuity for F(x) = sin(x^2-2) ? Can you show your work? Thx

asked by saphire on January 18, 2012
31. ## Adv. Algebra- Conics

Find the equation of a hyperbola with foci of (0,8), and (0,-8) and Asymptotes of y=4x and y=-4x Please show work!!!

asked by Paragon on November 19, 2007
32. ## Math

Estimate by rounding each term to the greatest place: 78.17-37.52 Need to show my work

asked by Bob on October 19, 2009
33. ## Derivative

f(x)=x|x| Show that f'(0) exists. What is the value? I don't know how to work with the absolute solving for f'(x) with first principles

asked by T on October 3, 2016
34. ## programming techniques

how do modular program work, can you show me an example of it using dowhile pseudo code.

asked by alberto on July 11, 2008
35. ## college algebra

find functions f anf g so that fog equals H H(x)=ãx^2+17 please show work

asked by confused on November 30, 2012
36. ## Science

How do I do a simple particle diagram to show how ear defenders work???

asked by Hannah Xx on March 8, 2009
37. ## Precal

1. Determine whether -9x+11y^3-3=-7x^2 defines y as a function of x. Please show all of your work. (Points : 5)

asked by Deb on January 18, 2012
38. ## chemistry

calculate the yield of CO2 if 30.g of C2H6 reacts with 14.0g of O2. Show work

asked by liz on April 18, 2013
39. ## Math

How do I write the numbers in order from greatest to least and show my work 0.275, 2 5/8, 0.15, 3 6/7

asked by Ruby on November 9, 2011
40. ## Algebra 2

Solving By Factoring Help me with these problems. 2x(2x+1)=2 5x^2+34x=7 Please show work I want to learn!!!

asked by Migue on November 8, 2014
41. ## help

conversion problems: \$3.98/lb to cents per gram 3.0 cups/lb to L/Kg (please show me the work) thank u

asked by kk on September 19, 2011
42. ## calculus

what are the horizontal and vertical intercepts :r=4-4cos(theta) please show work

asked by reneae on April 7, 2019
43. ## Precalculus

Find the bounds on the real zeros of the following function. Please show all of your work.f(x)=x^4+2x^3-x^2-1

asked by Deb on January 30, 2012
44. ## math

Determine the area and perimeter of 3.6cm by 4.2cm show your work.

asked by anonymous on August 11, 2018
45. ## math

find the functions f&g so that fog = H H(x)=squre root x^2+8 please show work

asked by Kelli on January 3, 2013
46. ## math, trig

Graph one period of the following function. Show all work . y=2sinx+2cosx

asked by shay on April 18, 2012
47. ## Algebra 2

find the real zeros of each polynomial f(x)=5x^3-40 Please show work I want to learn how to did it

asked by Ariana on December 11, 2014
48. ## Trignometry

How can I find the exact value of 4cos(7ð/4)-2sin(ð/3) without using a calculator (show work)?

asked by Anonymous on January 31, 2012
49. ## Algebra 2

Find the real zeros of each polynomial f(x)=5x^3-40 Please show work I want to learn how to did it

asked by Alicia on December 11, 2014
50. ## alg

find the domain of the composite function f of g. f(x)=x^2+9;g(x)=sqrtx-7 please show work

asked by alli on September 2, 2012
51. ## chemistry

Will the following reaction occur Spontaneously? Show your work and reasoning in each case 1. Ca(s) + Sn^4+ -->

asked by Aidan on June 7, 2011
52. ## math

find the quotient of 488 and 8 by partitioning the dividend. show your work

asked by kylie on January 29, 2013
53. ## Calculus

find the limit as x approaches zero of (3sin2x)/sin7x and show work is it 6/7?

asked by Millie on October 18, 2011
54. ## math

how many two digit numbers can be made using only these digits 2,4,6,8 show work and explain

asked by Anonymous on September 6, 2012
55. ## calculus

What is the limit, as x approaches 1, of (sqrt(x) - 1)/(x - 1)? I need to show work, but I know the answer is 3/2, because I confirmed with a TI-89.

asked by John on March 15, 2015
56. ## geometry

graph ABCD...is it a square...A(-3,1) B(1,4)C(4,0)D(0,-3) JUSTIFY YOUR ANSWER AND SHOW WORK..THANK YOU

asked by Mae on October 27, 2012
57. ## geometry

graph ABCD...is it a square...A(-3,1) B(1,4)C(4,0)D(0,-3) JUSTIFY YOUR ANSWER AND SHOW WORK..THANK YOU

asked by Mae on October 27, 2012
58. ## Science

How do I draw a particle diagram to show how ear defenders work?

asked by Pooja on May 11, 2014
59. ## physics

a horse walks 56 meters in 75 second. what is his average velocity?show the work

asked by lisa on May 3, 2012
60. ## Calculus

find the limit as x approaches zero of (3sin2x)/sin7x and show work

asked by Millie on October 18, 2011
61. ## MA 1310

What is the amplitude, period and phase shift for y = 1/4 cos (3x +7)? Thank you, please show work.

asked by Mike on August 4, 2014
62. ## Geometry

Find the center of the circle using the equation provided. Please show work! x^2 + y^2 = 16

asked by Megan on April 9, 2012
63. ## math

10 is what percent of 25? show work 10 = x/100 * 25 10= .01x*25 1 = .25 x multipy both sides by 4.

asked by alexllly on April 25, 2007
64. ## physical science

how many centimeters long is the proverbial "10 foot pole?" show work

asked by anita on March 3, 2016
65. ## First grade math?

What added together = 5? I'm helping my little brother with his home work and it says show 5 in the different ways. We already did 3 +2 and 4 + 1 what else ???!!!

asked by Bella on October 8, 2015
66. ## Carpentry

How many shelves 3/4 by 13" by 18" can we cut from a sheet of Oak Plywood 48" by 96"? Show your work

asked by Vianna on January 31, 2017
67. ## math

What are the final two digits of 7124? Show work to support your answer

asked by Anonymous on April 23, 2012
68. ## Pre-Cal: Plz help!

Simplify and show work: [(X^(2)+3)^(1/3)](-1)(x^(-2))+[1/3(x^(2)+3)^(-2/3)](2x)(x^(-1)) My answer key says that it's this but I have no idea how to get to it. I've tried 4 times already: [-(x^(2)+9)]/[(3x^(2))(x^(2)+3))^(2/3)]

asked by Dom on June 1, 2016
69. ## Math

Find (fog)(2) and (gof)(-2) f(x)=Square root of 4-x; g(x)=1-3x^2 Show work.

asked by Madison on October 9, 2012
70. ## college alg

the function f(x)=6x+9/3x-7 is one to one. find its inverse and check your answer. f^-1(x)=? please show work

asked by MYA on September 5, 2012
71. ## calculus

find the equation of line L. L is parellel to y=4x show work pleaase..

asked by Holly on December 9, 2012
72. ## math

What is the average rate of change of the function g(x) = 3(2x) - 6 over the interval 0

asked by lexi on April 30, 2019
73. ## college algebra--need help please!!

find the domain of the composite function fog. f(x)= 2/x-3; g(x)= 7/x please show all work.

asked by Heather on November 24, 2012
74. ## algebra

Find a quadratic model for the set of values: (-2,-20), (0,-4), (4,-20). Show your work. y = -3x^2 - 4x + 3

asked by Johnthyn on March 21, 2015
75. ## stats

. Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.4 0.25 0.35 Please show all of your work.

asked by Anonymous on October 7, 2012
76. ## Algebra

5m -2 = 33 while i know the answer is m=7 therefor making the equation read: 5(7)-2=33 how do I show my work

asked by JoHanna on December 8, 2009
77. ## math

Does the series converge or diverge? If it converges, what is the sum? Show your work. ∑∞n=1−4(−12)n−1

asked by tom on May 2, 2019
78. ## Math

Find the domain of the function. Show all work. 1 if -9 < or = x

asked by Beth on October 25, 2011
79. ## precalc

Rewrite 3y^2 + 6y + 108x - 969=0 in standard form, show work.

asked by 95 on December 16, 2011
80. ## precalculus

write the expression below as a single logarithm show work. ln(x-7/x^2+12x+36)-ln(x^2-49/x+6)

asked by Sara on January 11, 2012
81. ## math

for the given functions f and g find f o g and state the domain show all work f(x)=sqrt x-3 g(x)=x^2-7x+9

asked by Sara on January 11, 2012
82. ## Math

Find the three geometric means between -2 and -32. Show the work that leads to your answer

asked by Jazmine on November 8, 2011
83. ## Calculus

find the limit as x approaches zero of (3sin2x)/sin7x and show work

asked by Tina on October 18, 2011
84. ## Math

Sorry for the repost, there was a mistake with the bracketing in the last one. Write (4/27)(2^((3+m)/3)+2^(m/3))^3 as a power of 2, show your work.

asked by Alexander on January 26, 2018
85. ## linear algebra

Find the equation of the plane for which each point is equidistant from P(2,1,1) and Q (-4,7,9). Show all work

asked by Stephanies on November 14, 2010
86. ## chemistry

which weighs more a 101cm ^3 of copper or 92.0cm^3 of iron show work

asked by n.h on January 26, 2014
87. ## algebra

determine the domain, range and horizontal asymptote Please show all your work f(x) = - (3/4)^x - 1 Help!

asked by amy on December 17, 2011
88. ## high school algerbra class

(2/x^2-4)+(3/x^2)+(x-6+1/x+3) someone please show me how to work this problem with the steps, so I can see if I can get it. This is due tomorrow in class. Thank you.

asked by kenneth on August 25, 2010
89. ## Math

Express as a rational expression : [(x^3+y^3+z^3-3xyz)/(a^3+b^3+c^3-3abc)] * [(a^2+b^2+c^2-ab-bc-ca)/(x^2+y^2+z^2-xy-xz-zy)] Show all your work

asked by jessie on May 25, 2009
90. ## Math

Express as a rational expression : [(x^3+y^3+z^3-3xyz)/(a^3+b^3+c^3-3abc)] * [(a^2+b^2+c^2-ab-bc-ca)/(x^2+y^2+z^2-xy-xz-zy)] Show all your work

asked by jessie on May 25, 2009
91. ## pre-algebra

Given the linear equation y=-5x-2. Find the y-coordinates of the points (-1), (-2), and (1). Please show all of your work.

asked by cody on June 20, 2011
92. ## pre - CALCULUS

Find the indicated sum. Show your work. 4 k=1 (-1)^k(k+11) ￼Inbetween the 4 and k , Theres a backwards 3 sign

asked by Ciara on April 13, 2015
93. ## Math - Domain of Composite

Find the domain of the composite function . Please show all of your work. f(x) = sqrt(x); g(x) = 2x + 12

asked by Armando on June 5, 2011
94. ## quadratics

Write the function f(x) = ax^2 + bx + c in completed square form. SHOW YOUR WORK!!!

asked by alisha on March 3, 2019
95. ## Calc

∫ (2x+1)/(x+1) dx Please show steps if you work it. I think it's a partial fraction and worked with decomposition. Not sure though.

asked by Janice on March 14, 2015
96. ## Math - urgent

Evaluate the definite integral 8 S (3x^2 + 3)/(x^2) dx 5 Not sure which substitution to use. Please show your work & explain. Thanks

asked by Mary on September 28, 2011
97. ## find real and complex 0

Find the real and complex zeros of the following function. Please show all of your work. f(x) = x^3 + 2x^2 - 6x + 8

asked by Armando on May 30, 2011
98. ## integration....

Evaluate the intergral root(xdx).... Help plz show work...

asked by Dam on May 13, 2016
99. ## calculus

Plot the points and determine the slope of the line containing them (-7,-4);(8,-4) please show work

asked by Holly on December 7, 2012
100. ## Calculus

Find dy/dx by implicit differentiation. x^3 - 3x^2y + 2xy^2 =12 Please show me the work/steps on how to do it.

asked by Guest on October 3, 2012