# 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 302
1. ## math

show that the equation x^3-15x+c=0 has at most one root on the interval [-2,2.

asked by Bobby on November 29, 2013
2. ## math

show that the following point are the vertical of a square(-2,4) (2,0) (2,8) and (6,-4),find AB, CD, AC, BD, AD

asked by odukoya on May 16, 2016
3. ## Math

Draw two number lines that show 0.20 and 1/5 are equivalent

asked by Anna on October 6, 2015
4. ## Proofing Maths

Prove that |x+y+z| is less than or equal to |x|+|y|+|z|. Please try to show working and explain

asked by ollie on December 26, 2016
5. ## Math

Show that [x] + [x + 1/2] = [2x] when x is a real number. [x] is the floor function, where [5/2] = 2 and [-5/2] = -3.

asked by Sean on June 5, 2011
6. ## Calculus

let f(x)=2x-7. Use the rigorous definition of limit to show that lim x-->4 f(x)=1

asked by Sarah on June 13, 2016
7. ## Math

show that in general, each of the following is false if A, B, and C are whole numbers? 1. A/B = B/A 2. (A/B) / C = A / (B/C) 3. A / (B+C) = (A/B) + (A/C) 4. A / B is a whole numbe

asked by Jagals on July 8, 2012
8. ## Calculus HELP!!

6 2 6 Let u = 4 , v = 2 , w = 2 5 3 1 Show that 2u - 3v - w = 0. Use that fact to find x1 and x2 that satisfy the equation 6 2 6 4 2 {x1} = 2 5 3 {x2} 1

asked by Sara on January 27, 2014
9. ## math

Show that if roots of eqn (a²-bc) x²+2(b²-ac)x +c²-ab=0 are equal then either b=0 or a³+b³+c³=3abc.

asked by tanu on July 5, 2014
10. ## Calculus

How can I show that the function F (x)= the integral from 2x to 5x of 1/ t dt is constant on the interval (0, +∞).

asked by Anonymous on September 13, 2015
11. ## Chemistry

In saponification, does sudsing show after adding acid. Why?

asked by Ashley on April 18, 2013
12. ## pre calc

show that the statements are true for all natural numbers 1^3 +2^3 +5^3+....+(2n+3)^3 =n^2(2n^2 -1)

asked by appy on March 3, 2013
13. ## math

4m+9+5m-12= 42 my question is how to get m=5 (the answer) can u show me the steps to do this problem right please because i keep getting 6 ?

asked by me on January 25, 2010
14. ## Math

HELP PLZ !!! Show that the set of points are collinear (a) (-2,-6) (2,-4) and (4,-3) (b) (-5,5) (1,1) and (4,-1) (c) (-5,-6) (-2,0) and (-1,2)

asked by Lesedi on August 19, 2014
15. ## Math

Please show me how to do this problem please. The ratio of 7 dimes to 3 quarters.

asked by Danielle on February 29, 2008
16. ## math

Show that the largest triangle of given perimeter is equilateral.

asked by zeff on October 9, 2016
17. ## math

I need help writing 57/18 as a mixed number. Can somebody show me how to do it .Because I'm not understanding what to do.

asked by cora evans on December 13, 2013
18. ## Trig

Let f and g be two invertible functions such that f^-1(x)=5/x+4 and g(x)=4(x-2). Find f(g(5)). Show your steps please so I can see how to do it. Thank you! :)

asked by Bailey on October 12, 2012
19. ## math

write to show how to make a ten then add

asked by ceanna on November 12, 2013
20. ## literature

what lines show alliterations in the poem "Fable for when there's no way out"

asked by jennifer on March 30, 2015
21. ## Math

asked by G man on December 5, 2017
22. ## biology

Show that germinatingseeds produce heat energy.

asked by Anonymous on January 20, 2013
23. ## Chemistry

How does looking at phases of products and reactants show the Estamation of ÄS?

asked by Spacy1996 on March 28, 2012
24. ## Math

Tell if x and y show direct variation. Explain reasoning. 1) x=2y 2) y-x=6 3) xy=5

asked by Matt on October 7, 2015
25. ## math

F(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps. I honestly have no idea how to do this. Can someone please explain what I have to do?

asked by sage on March 14, 2016
26. ## social studies

how can the study of history help show our countrys diversity?

asked by lindsey on September 20, 2011
27. ## mathematics-sequence

. Find 3-tails of d sequence:{2,4,6,8,10,12,14} please show workings #thanks

asked by P1 on March 24, 2016
28. ## math

4.56*3.6/0.12 express in standard form show working

asked by Patience Inyang on October 17, 2018
29. ## Math

Convert to standard notation. 7.53 × 10^3. Can someone show me the proper way to do this?

asked by Anonymous on October 24, 2009
30. ## english

what are nonverbal ways people can show determination?

asked by Gi on March 10, 2017
31. ## Polynomials

can someone show me how to do the sum, difference and product for this problem

asked by terrance on September 18, 2013
32. ## Mathematics

Show how to find an example of 29 consecutive numbers, none of which is is prime.

asked by Abc on October 5, 2018
33. ## math

Please show me the steps on how to get the simplest form for 1 7/5ths

asked by johan on January 17, 2011
34. ## mathematical physics

For a scaler field ϕ(x, y, z) = x^n+y^n+z^n, show that (🔻ϕ ).r = nϕ , where n is a non-zero real constant.

asked by gourav bhardwaj on September 13, 2016
35. ## Math

Simplify that rational expression. Please show the steps x^3-8/x^2-4

asked by Anonymous on March 20, 2010
36. ## math

if foreach a and b is group G,(ab)2 =a2b2 ,show that G is abelian

asked by paam on July 2, 2014
37. ## math

please show the working out of how the 48.6 m is acheived. ( 400.9 m^4 s^-3 ) / ( 5 m s^-1 x 0.0007 s^-2 )1/3 = 48.6 m

asked by Brigit on May 6, 2009
38. ## Science

Hello. Can someone please show me a link or something to the Big Bang theory???

asked by AngelWolfAssassin on April 16, 2013
39. ## math

if 1/2,1/x,1/3 are successive terms of an arithmetic progression. Show that 2-x /x-3 = 2/3.

asked by Joseph on December 27, 2017
40. ## algrebra

can someone show the steps 6*1/2-4[2-3(4*1/2-3)]=-17 in two step equation in algrebra

asked by jethro on October 9, 2010
41. ## maths help me!!!

|x+1|-|x|+3|x-1|-2|x-2|=x+2 don,t have any ideal at all show working plz

asked by david!!! on April 16, 2016
42. ## math

Determine whether ΔGHI is a right triangle. G(-2, 1), H(3, -1), I(-4, -4). Can you please show the steps too? Thank you!

asked by sara on January 14, 2018
43. ## calculus

let f(x)= (x-3)^-2 Show that there is no value of c in (1,4) such that f(4)-f(1)= (f prime of c)(4-1). Why doesn't this contradict the mean value theorem.

asked by Anonymous on November 2, 2010
44. ## Chemistry

Does anyone know why amines show high solidility in water?

asked by Lisa on February 17, 2008
45. ## precalculus

show the correct notation for “The limit of x^2 - 1 as x approaches 3.

asked by sally on December 21, 2016
46. ## Calculus

Find the derivative of the following: f(x)=ln(e^(2x)/(x^2-4)^3 Please show all steps so I can follow Thanks!

asked by Sean on April 21, 2013
47. ## Gr. 10 math

Factor by Grouping.please show me the steps!!!!!!! 1.) y2+11y+30 2.) x2+4x-5 3.) a2-a-56

asked by Nini on April 6, 2009
48. ## Polynomials

can someone show me how to get the sum, difference and product of this problem 2x^2-1∶ x^3- x^(2 )+ 2^x- 1

asked by terrance on September 18, 2013
49. ## CHEMISTRY

GIVE AN EXPIRIMENT TO SHOW THAT AIR HAS WEIGHT.

asked by AKASH MITRA on December 13, 2009
50. ## language arts

compare and contrast the giver and the truman show

asked by sue on June 5, 2013
51. ## math

Show a place value model of4,362

asked by Anonymous on March 27, 2016
52. ## Pre-Algebra

Can someone show me how to turn this into an equation? I mean like 'y=x-z' -2x+ y > or equal to 2 Did I say what I needed to get right? -MC

asked by mysterychicken on May 14, 2009
53. ## life orientation

show the link between intrapersonal conflict and relationship

asked by debeila grace on February 22, 2015
54. ## math

show that the sum of four consecutive whole numbers is divisible by 2

asked by kendra on November 29, 2011
55. ## Calculus

find the horizontal tangents of the curve and show how. y=x^3-2x^2+x+1

asked by Millie on October 12, 2011
56. ## math

show that the sum of four consecutive whole number is divisible by 2

asked by mary lou on November 29, 2011
57. ## calculus

show that an integral of the form ∫00,a e^(-px) dx is convergent if p>0 and divergent if p

58. ## mathematical phyaics

For a scaler field ϕ(x, y, z) = x^n+y^n+z^n, show that (🔻ϕ ).r = nϕ , where n is a non-zero real constant.

asked by gourav bhardwaj on September 13, 2016
59. ## Algebra

show a graph that best represents a first-degree polynomial p(X).

asked by Candy on October 10, 2018

explain how you could show five less than a numer using an expression. 5-x, is this correct?

asked by Jodie on September 29, 2009

In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k-1)(k-2)...(3)(2)(1)

asked by Josh on February 23, 2009
62. ## calc

Can someone please show me how to find the integral of sin squared x?

asked by lo on February 27, 2011
63. ## math

Can you show 2 hundredths using only tenths place value blocks?

asked by Jo on October 18, 2012
64. ## math

Assume r and s are the roots of the quadratic equation ax^2 + bx + c = 0, show that r + s = -b/a and rs = c/a.

asked by Sushmitha on October 10, 2011
65. ## math

Factor 16x(a + b + c) + 7y(a + b + c) + 8w(a + b + c). Please show the steps for how you get the answer. Thanks

asked by Alex on December 16, 2013
66. ## Urgent math help!

What is 66 2/3% of 891? PLEASE show me the steps on how you got the answer to this question...

asked by Lisa on November 15, 2008
67. ## geography

map of Nigeria show the biotic community

asked by Anonymous on March 31, 2019
68. ## Math

What is 0.25% of 3000? I'll like if you'll show me the steps on how you answered this problem.

asked by Kiara on November 15, 2008
69. ## math

Write two subtraction equations to show how to find 15-7

asked by vic on October 5, 2016
70. ## Algebra2

Use synthetic division to find p(3) for p(x)=x^4-2x^3-4x+4 Show steps

asked by Steve on November 15, 2016
71. ## Calculus

Find f(x) so that it satisfies: f'(x)=1+e^x+1/x and f(1) =3+e. Please show all steps so I can follow. Thanks.

asked by Rene on April 16, 2013

show that Sin5θ/Sinθ = 16Cospower4 θ – 12Cospower2 θ

asked by Crisusseunayo on February 4, 2016
73. ## MATH

WRITE TO SHOW HOW YOU MAKE A TEN. THEN ADD. WHAT IS 9 + 7

asked by Anonymous on October 2, 2013
74. ## Physics

Suppose vectors a&b, if a cross b=c. Show that c is perpendicular to a&b.

asked by Emily on November 13, 2011
75. ## math help ASAP!!

simplify fully! 3x-2/x+4 = 18-4x/x^2-16 - 3x+2/4-x show all of your steps pleasee !!

asked by sunny on September 17, 2014
76. ## algebra

I don't understand how to do this, so please help. Could you show the steps , so I can try it own my ow to see if I can get it.Thank you. 2SQRT4t^9z^2.

asked by jessica on September 3, 2010
77. ## mathematical physics

For a scaler field ϕ(x, y, z) = x^n+y^n+z^n, show that (🔻ϕ ).r = nϕ , where n is a non-zero real constant.

asked by gourav bhardwaj on September 21, 2016
78. ## Chemistry

convert: 450m/s to m/h? please show exact steps

asked by Melissa on August 24, 2009
79. ## math

17x – 42 = -39 i need to show the steps for solving this equation

asked by Jeninifer on October 14, 2010
80. ## grammar

Is this sentence correct? The show is great but it is much less than expected.

asked by klarmaesen on April 30, 2013
81. ## math/limits

lim {x-3}/(x^2-9) x->3 ( I used {} to show absolute value) Find the limit if there is one.

asked by Morgan on October 25, 2014
82. ## Math...

what do they mean? Write an inequality to show "a number,b, is positive" ?

asked by Mathilde on October 2, 2007
83. ## math

Given that the roots of the equation 3x^2+x+2=0 are a and b, show that 27a^4=11a+10.

asked by Thomas on December 30, 2016

show the given fractional amount in an equalivalent decimal, 5/8 and 13/26

asked by abbie on October 17, 2009
85. ## Algebra 2

Show that the following numbers are irrational: 1. sqrt3 2. sqrt6

asked by Brandon on May 12, 2011
86. ## physical science

a diagram to show the maximum and minimum resultants

asked by masego on January 19, 2015
87. ## statistics

what is the name of an article that can show the chi-square assumption?

asked by jonja on July 3, 2011
88. ## Math

show me the steps to solving this problem? 3k/5+44=12k/25+8

asked by alice on April 14, 2010
89. ## calculus

If y = f(x) = x^(p/q) then y^p = x^p show through implicit differentiation that d/dx[x^(p/q)] = (p/q)x^[p/q] Not sure how to tackle this problem.

asked by Daniel on October 24, 2011
90. ## English

Can you please show me a sample of a diagrammed sentence with phrases?

asked by Tyler on July 20, 2008
91. ## math

factorize the following expressions and if possible show your steps 4x+20 3y^2+12y x^2+4y-21

asked by jacob on June 11, 2019
92. ## Math

How would you show that one trigonometric expression is equal to another? I’m not exactly sure how to start.

asked by Andrea on May 27, 2018
93. ## Math

Complex Numbers please helpppppp and show solutions 1.) (3-7i) + (-1-2i) 2.) (4-5i) - (2-3i) 3.) (7-5i) + (6+9i) 4.) 2+3i/3-5i

asked by Denzel on October 14, 2015
94. ## mathematics-calculus-derivatives

. If y=cosx, find dy/d5x please show workings #thanks

asked by P1 on March 30, 2016
95. ## Math 17 Synthetic Division

Using synthetic division, divide (x^6)(y^6) by x-y. please show the process. THANK YOU! :)

asked by Rob on July 9, 2013
96. ## Chemistry

Using equation only. Show how tetraoxosulphate(IV) can be prepared industrially

97. ## mathematics-calculus-derivatives

. Try this. If y=cosx find dy/d5x please show workings #thanks

asked by P1 on March 30, 2016
98. ## Pre-Calc

Can someone show me how to do this please. I am stuck. find a number x such that e^2x – 12e^x =13

asked by Roy on December 9, 2010
99. ## Maths

show that the circles x^2 + y^2 - 10x - 8y + 18 = 0 and x^2 + y^2 - 8y - 4y + 14x = 0 do not intersect

asked by Joe on May 2, 2017
100. ## Maths

Given that the line y=mx+c is a tangent to the circle (x-a)^2+(y-b)^2 = r^2 show that: (1-m^2)r^2=(c-b+ma)^2 Please Help and sorry for the inconvenience

asked by Jeff on May 2, 2017