# 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 309
1. ## Algebra I

Rewrite the equation so that y is the fucntion of x: a. 1/7(49-7y)=5x-3y+14 b. 4(2x-3y)=-5(x+3y) Can you please explain and show how to do these two problems? Thank you.

asked by Kat on September 24, 2009
2. ## math

Using a number line show how to find the sum or difference. 1.3 + 1.8

asked by Betty on August 4, 2010
3. ## Linear algebra

Use the properties of linear operations with vectors to show that for any vector a:   -> 0a=0

asked by Ryan on May 4, 2011
4. ## Grade11 Physical Sciences

Draw a diagram to show the maximum and minimum resultants.

asked by Refilwe on January 22, 2018
5. ## Algebra

How do we show that the expression x^2 + 2ax + b is no less than b^2 - a^2? If we take this has/have real root(s) we can tell that 4a^2 - 4c>= 0. But how do we prove the given?

asked by Aanyao on May 20, 2017
6. ## math

I need help on how to do this problem y(y _ 5).(wy)using the commutative and associate properties of multiplcation. I need someone to show me please thank you

asked by sandra on January 10, 2009
7. ## life orientation

Show the link between intrapersonal conflict and initiating relationship

asked by mcedisi on March 11, 2015
8. ## Math

How would you factor this (3x^2+x)+ (3x+1).... Can you please show ur steps on how u get the answer so I understand how to do the problem. Thank You

asked by Heather on April 14, 2010
9. ## help

If you could design a study on anything about human behavior to show how it is the same across cultures, what would that be?

asked by april on July 19, 2014
10. ## Algebra

what is the domain function y=√3x+3 The sqrt sign goes over the 3x+3 can someone show me how to do this problem?

asked by Mike on May 4, 2016
11. ## Math

Sorry posted the wrong question earlier. Let A and B be sets. Show that A \ (A \ B) ⊆ B.

asked by Winston on January 27, 2017
12. ## Math

Apply algebraic reasoning to show that a=b^(loga/logb) for any a,b>0

asked by Jus on May 23, 2009
13. ## Math

Could someone show me how you would do the following question. Determine the roots algebraically by factoring: x^3 - 8x^2 - 3x + 90= 0

asked by Selena on October 6, 2009
14. ## Algebra

How come with (3,4) (vertex), and (1,2) (point) a doesn't equal -4.5, but -.5? Please show me how to get this answer.

asked by Murajabash on November 12, 2009
15. ## Math

Use a counter example to show that cos(x+y)= cosx +cosy is not an identity

asked by Brandon on November 24, 2009
16. ## algebra

Please show me how to COMPLETELY factor this expression. z^2 + 11z -42 I appreciate your generous help,thank you.

asked by Anneliese on January 2, 2017
17. ## Math

Use a counter example to show that cos(x+y)= cosx +cosy is not an identity

asked by Brandon on November 24, 2009
18. ## Math Algebra 2

m1v1 + m2v2=(m1+m2)v3 find m1 If you could please explain it too or show the steps I would appreciate it.

asked by John on September 13, 2011
19. ## factor the trinomial by grouping

15x^3-9x^2-6x Can someone please show me how to factor completely.. trying to learn how to do factoring

asked by Adriana on June 14, 2012
20. ## Geometry

Show that Euler's formula holds for a right pentagonal prism.

asked by Nicole on February 19, 2010
21. ## math 3rd grade

The question is show how the commutative property of addition works using 2,3,and 5.

asked by Nathaniel on September 25, 2012
22. ## alGEBRA 2 help please would appreciate

graph 36x^2-900=25y^2 show the step please

asked by lisa on October 28, 2013
23. ## calculus help

Evaluate integral from -10 to 10 of ((2e^x)/(sinhx+coshx)dt) Show steps please Thanks!

asked by Kimberly :( on May 6, 2014
24. ## Algerbra 2

Simplify and show the steps to the problem 4(14x-10y) - 6( y + 4x)

asked by Micah on September 12, 2011
25. ## Math

Show that the set of non zero rational numbers is closed under division

asked by Anonymous on October 10, 2017
26. ## math

I'm looking at a shape that is being dialated and reflected across the y-axis but I need to show the similarities... How would I do that?

asked by Samantha Rivera on January 21, 2014
27. ## Calculus

show the following linearization of the function f(x)=cos(3x)-3sin(3x) at x=2pi

asked by Jay on April 7, 2010
28. ## Chem 1411

How would you show that dissolving table salt is a physical change?

asked by Rhonda on October 29, 2012
29. ## chemistry

Hello this is ellie again. I was wondering could you explain what a bombardment reaction is and and show an example of it? Thanks

asked by ellie on December 5, 2013
30. ## Algebra 1

Could someone help me this is what you have to do. Determine the x- and y-intercept of the graph of each equation. 5x-y=-5 can someone show me how you do this I know you have to plug in 0 for both y and x.

asked by Pink fan on February 3, 2009
31. ## Calculus Help Please!!!

if f(x)= x+(1/x), find f'(x) using the limit definition of derivative. Please show steps!!! Thank you!!!

asked by Tenshi on February 25, 2014
32. ## Philosophy

How would you construct a proof to show that the following arguments are valid? 1. TvH 2. T→G 3. ~H ֶG 1. ~~A 2. ~A v C ֶC 1. S • T 2. (S • T) → G 3. G →(H v B) ֶ H v B 1. A →B 2. C →D 3. A v C 4. ~D ֶ B

asked by Ann on March 30, 2008
33. ## algebra

If you could please help show me the steps so i can continue on with my assignment i would be very appreciative: Problem 9 - p/4 = 5

asked by May on September 7, 2012
34. ## 3rd grade

how can i subtract and fid the diference on 1500 - 1132 can you show me

asked by alexia on October 28, 2009
35. ## abstract algebra

Let R be a ring. The center of R is the set C= {x exists in R| ax=xa for all a in R}. Show that C is a subring of R.

asked by Mary on November 8, 2011
36. ## college math

my previous question 3/8 x 12.52 could show me how you worked it out to get the answer 4.695 Thanks

asked by Lourane on May 26, 2012
37. ## multivariate calculus

Q.NO.1: Show that the function z=ln(x^2 + y^2)+2tan^-1(y/x) satisfies Laplace’s equation. (∂^2z/∂x^2)+(∂^2z/∂y^2)=0

asked by akash on May 13, 2017
38. ## ---

i posted a HUGE spanish question, and it didn't even show up :(

asked by y912f on June 15, 2009
39. ## Maths (Need Help)

complete the brackets which as left emty in each of the following (show working out) A).(2x-3)^2-3x= (x-3)( ) B).(x^2-4)+(x+2)^2= (x+2) ( )

asked by Debby on May 23, 2016
40. ## college algebra

Please show me the steps to solving this equation:-) √5(x-1.2)-√3x

asked by Anonymous on February 10, 2013
41. ## Life orientation

Show the link between intrapersonal conflict and initiating relationship

asked by Rabelani on March 10, 2015
42. ## Macroeconomics

Could someone please show me in a graph how a decrease in marginal propensity to consume would look please

asked by Jarrod on May 8, 2017
43. ## maths-TRIGNOMETRY

show that: 2^5 cos^2a sin^4a=cos6a-2cos4a- cos2a + 2

asked by Anonymous on February 21, 2013
44. ## math

show that the curves y=2x^2+5x y=x^2+4x+12 y=3x^2+4x-6 have one point in common and find coordinates??

asked by tod on October 17, 2010
45. ## Statistics Please Help

determine the value of C P(-c

asked by Mary Ann on August 10, 2015
46. ## english

what are some pages of 'To Kill A Mocking-bird' that show the themes of the novel

asked by tegzy on March 14, 2009
47. ## english

im looking for a website that can show me a review on the book never let me go by kauzo ishiguro - thanks

asked by annaiiz on September 20, 2009
48. ## algebra

I have a problem that I can't seem to figure out. Could you show me how it's done? Thank You :) 5sqrt(3x) + 3sqrt(3x) What is 5a + 3a? Answer: 8a

asked by kat311 on June 28, 2007
49. ## Maths (Recurring Decimals)

Express 3.2304 (dot above 2 and 4) as a fraction Please show working out too

asked by Babiinoob on October 6, 2011
50. ## calculus

what is the 2nd derivative of: 1-xy = x-y i get (-y-1)/(x-1) for the first the second i know is (-y-1)/(x-1)^2 but i keep getting (0)/(x-1)^2 please show me the steps i should be taking and if possible what i did wrong

asked by eric on January 20, 2014
51. ## intermediate value thorem

Use intermediate value theorem to show that the polynomial function has a zero in the given interval. f(-3)= value of 0=

asked by lynn on May 2, 2013
52. ## math

Show that there is at least one point of intersection between the parabola y = −2(x + 1)2 − 5, where y = f(x), and the straight line y = mx − 7, where y = f(x).

asked by anonymous on February 23, 2018
53. ## chemistry(balance equation)

How to balance HNO3 +Cu ------->Cu(NO3)2+NO+H2O ? please show me steps

asked by kate on January 19, 2012
54. ## math

show that the curves y=2x^2+5x y=x^2+4x+12 y=3x^2+4x-6 have one point in common and find coordinates??

asked by tod on October 17, 2010
55. ## math

Show how commutative property of addition works using the numbers 2, 3, & 5

asked by cody on September 15, 2010
56. ## chem

show the hydrogen bonding between two molecules of ethanol (C6H6O) . .??

asked by alexie on December 17, 2012
57. ## Science

Experiment. To show that expired air contains carbon dioxide

asked by Annabella on May 22, 2018
58. ## math

How do I use the quotient of powers property to show that zero to the zero power is undefined?

asked by arya on September 24, 2008
59. ## calculus

Q.N0.2: Show that u(x,y)=ln(x^2 + y^2) and v(x,y)=2tan^-1(y/x) satisfy Cauchy-Riemann equations (∂u/∂x)=(∂v/∂y) and (∂u/∂y)=(-∂v/∂x)

asked by akash on May 12, 2017
60. ## math

Write 0.026 As a sum using powers of 10 to show place value

asked by kim on February 11, 2013
61. ## calculus

Q.NO.1: Show that the function z=ln(x^2 + y^2)+2tan^-1(y/x) satisfies Laplace’s equation. (∂^2z/∂x^2)+(∂^2z/∂y^2)=0

asked by akash on May 12, 2017
62. ## math

Do the following lines intersect? If yes, show the the point of intersection, if any. 5x+8y=-5 -x-1.6y=14  Im stuck. Please help! Thanks

asked by Tori on July 12, 2015
63. ## Science

Describe one observation astronomers use to show that the universe is expanding

asked by Sarah on January 31, 2016
64. ## LA

What does this passage most likely show about Mrs. Winterbottom? Please help me with the answers to this assessment!

asked by Anonymous on May 11, 2017
65. ## Math

Show that Euler's formula holds for a right pentagonal prism.

asked by Michelle on January 7, 2010
66. ## math

explain how you can use a number line to show that 3/6 and 1/2 are equivalent fractions?

asked by anita on March 3, 2015
67. ## Physics

The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R

asked by Bob on September 7, 2010
68. ## algebra

x 3 6 9 12 f(x) 9 18 27 36 Does this relationship show direct linear variation?_______________ If so, what is your k value?

asked by Anonymous on September 29, 2011
69. ## Math

If one root of the equation x^2-px+q=0 is the square of the other, show that p^3-q(3p+1)-q^2=0. Provided q is not equal to 1

asked by Skyboy on December 19, 2015
70. ## Physics

The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R

asked by URGENT on September 8, 2010
71. ## math

my teacher asked... draw a diagram and show 2.6 divided by .4

asked by what ever on November 20, 2009
72. ## algebra

Divide. (2b^2 + 2b - 9)/(b-3) 2b2 + 2b - 9 ———————————— =2b+8 b - 3 Is this the correct answer? Please help show me the right way if this is wrong. Thank you!!

asked by slomo on February 2, 2015
73. ## calculus

Use the Intermediate Value Theorem to show that there is a root in the equation x^(1/3)=1-x in the interval (0,1).

asked by Gabe on January 21, 2010
74. ## algebra1

evaluate the expression n+(-5) for each value of n. N=-72/5, n=-7/12 can u pls show me how to this. cuz i've been doing something wrong

asked by alanaR. on August 29, 2010
75. ## Maths

Show that if the diagonals of a quadrilateral bisect each other at right angles, then it is a rhombus.

asked by Rahul on October 28, 2014
76. ## ap chemistry

2.70 g/cm3 to pounds per cubic foot could you please show me the steps

asked by mike on September 8, 2010
77. ## Math

1. |x+3|=4 x = 1, -7 2. |x-2|=6 x = 8, -4 3. |x-5|*17 x = ?? [>* means greater/less than OR equal to] Please check. And show how to do numbers 3 and 4. Thank you.

asked by Maria on November 4, 2009
78. ## algebra1

evaluate the expression n+(-5) for each value of n. N=-72/5, n=-7/12 can u pls show me how to this. cuz i've been doing something wrong.

asked by alanaR. on August 29, 2010
79. ## algebra

GRAPH EACH EQUATION AND IDENIFY THE Y-INTERCEPT 6X-3Y=9 PLEASE SHOW STEPS IF POSSIBLE.

asked by Daniel on October 13, 2010
80. ## mathematics

Show that the limit does not exist for the function Lim (x,y)➡(1,-2): (4x^3y^2 - 2xy^5+ 7y-1)/ ( 3y-y^4 + 3x^3)

asked by sikangele on June 27, 2014
81. ## 8th grade prealgebra

Complete to show how the given expression can be written as the product of two factors. -3m-3n=-3

asked by Alex on May 4, 2009
82. ## Survey of the sciences

Show that one mole of sugar equals 342 grams.

asked by Stephanie on February 9, 2011
83. ## algebra

Show all steps evaluate the expression for the given value of the variable 5a+5b,a=-6,b=-5thanks

asked by Lucky on February 23, 2014
84. ## life orientation

Show the link between interpersonal conflict and initiating relationship

asked by Sinethemba on February 24, 2019
85. ## math

Let X be a Binomial random variable with parameters n and 0 < p < 1. Show that lim E(1 + X) · E(1/1 + X)= 1. n→∞

asked by Jeremy on November 15, 2014
86. ## Chemistry

if I want to show the results of a nitrate analysis as nitrogen what is the equation

asked by Anonymous on September 25, 2016
87. ## math

how do u find the mean absolute deviation of a set of data and please show me how

asked by rian on May 4, 2014
88. ## Calculus

Show that Rolle's Theorem applies to the given function for the given values of x: x=-1 and x=4 for f(x)=3x-x^2+2.

asked by Anonymous on December 14, 2014
89. ## Chemistry/Math

convert 0.01403 grams to ppm please show all step

asked by Hasaan on October 1, 2014
90. ## maths

write in digits the greatest number i could show with three counters?

asked by Anonymous on January 31, 2010
91. ## mathematics

Use the definition of limits to show that Lim x➡ 0 : (x^2 - 9) / (x + 3) = -6 hence find the number d > 0 given that e=0.05

asked by Maggie on June 27, 2014
92. ## Linear Algebra

Let W be the set of all polynomials p(t) in P3 such that p(0)=0. Show that W is a subsapce of P3 and find a basis.

asked by Jaime on November 19, 2011
93. ## trig

can you show me how to get the answer for this tan(3theta+7)cot(5theta-11)=1

asked by y912f on November 25, 2008
94. ## 2nd grade math

Please help. I'm confused here's an example: 38+45=? Show how to make one added the next tens number?

asked by Math on November 3, 2016
95. ## life orientation

show the link between intrapersonal conflict and initiating relationship

asked by Reneilwe on March 4, 2015
96. ## math

please somebody explain the product of 6, and the sum of 4 and 5?I have to show if 6x4+5 is the right answer.

asked by melissa on March 16, 2014
97. ## expansion help!!! maths

write down the expansion of (1+x-x^2)^6 in Ascending other please show full working!

asked by collins on March 20, 2016
98. ## life orientation

show the link between intrapersonal conflict and initiating relationship

asked by queen on March 8, 2015
99. ## Calculus

limit as x-> 0 (1+sinx)^(cscx) How do I show that this is indeterminate? Can I say that 1^(1/0) = 1^infinity?

asked by Shaniquaa on December 3, 2008
100. ## MATH

Find all values of p such that 2(x+4)(x-2p) has a minimum value of -18. (AoPS, Please show steps)

asked by Steve on November 3, 2015