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

92,096 questions, page 450
1. math 117

How to do you Put in scientific notation (400)*(3000) Solve a^m*a^g please help I do not understand!!!:(

asked by Julissa on December 8, 2008
2. Proofs and numbers

Solve the congruence 24x identical to 42 (mod 30) for x. List all the solutions (if there are any).

asked by yin on November 28, 2012
3. Check my answer? Math(:

Solve for x. 4(12)4x=1000 Enter your answer to the nearest hundredth in the box. x ≈ 1.9

asked by Leia on March 2, 2017
4. HELP! Geometry

How would you solve this? Graph each fi gure in the c oordinate plane. Find each perimeter. 14. X (0, 2), Y (4, 2 1), Z ( 2 2, 2 1)

asked by Unknown on September 5, 2013
5. math

Given that: 4(2g + 104) - 96 = 504 + 6(g - 14), solve for g. i'm confused on how to set this problem up - if anyone could help that would be great. thank you.

asked by erika on September 7, 2014
6. algebra

I am totally lost on how to solve g(x)=2x^2+3x-1 to find the y and x-intercepts. This is what I have so far, but I don't know if I am on the right track. And if so what would be next? g(x)=2x^2+3x-1 =2x^2+3x -1 =(2x^2+3+6) +3-1

asked by dani on April 28, 2010

1)SIMPLIFY i^2 square root of -80 2)SOLVE 49x^2+100=0 3)14-i^6 divided by i

asked by kaleb on November 29, 2010
8. geometry

Set up a proportion to solve for RT using the scale factor 3:1, and use it to find the length of RT.

asked by Anonymous on June 30, 2009
9. Algebra

Solve and graph on a number line: -3 times the absolute value of 2x + 4 is greater than 6

asked by Doug on September 7, 2015
10. algebra

please solve the equation showing each step to get the points to find the slope. -2x+4y=9

asked by sherry on February 12, 2010
11. Maths

How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0 I thought you would use the quadratic formula somehow, but I'm not sure

asked by Daisy on October 6, 2015
12. Math

Can someone help me solve this question? I've read the book, notes, I still don't get it... Simply each of the following. a) n!/(n-1)! b) (n-r)!/(n-r-1)!

asked by Joey on February 22, 2011
13. math

Solve the following equation. (Examples 1-6) 15x2 = -17x + 4 x = 1 (smaller value) x = 2 (larger value)

asked by latesha on December 17, 2011
14. Trig

Hi. Can somebody help me solve this equaton with EXACT answers? ----- sin3x = 0 ----- Thankyou! All help is appreciated.

asked by sqleung on March 3, 2008
15. Algebra

Please guide in solving the following. I need the steps to take...in order to solve other similar equations. 28-4y=0

asked by MaryK on August 14, 2009
16. algebra

•What are two symbolic techniques used to solve linear equations? •Which do you feel is better? •Explain why

asked by gail on November 8, 2012
17. Algebra

I am still having trouble solving this problem. Use the quadratic formula to solve this equation: 4k(k+13)=13

asked by Jay on April 26, 2012
18. Pre-Calc

Solve for 0

asked by Anonymous on January 18, 2016
19. Math - Trig

Explain why we cannot solve an oblique triangle with the Law of Sines given SAS.

asked by McKenna Louise on February 6, 2014
20. algebra

It is possible for a quadratic equation to have no real-number solutions. Solve. t^2+10t+26=0

asked by gina on July 6, 2011
21. trig

How would I solve this problem for t? 720 = 11.895+2.545sin [2pi/366(t-80.5)]

asked by anna on November 25, 2012
22. math

Would you use mental math to solve 2984+1997+406? Explain?

asked by sandra on November 22, 2011
23. Math Help

How is this problem done? it's not coming out right for me. solve for c: x = p(1/a + m/c) cax=pc+ ma c(ax-p)=ma then divide by ax-p check my thinking.

asked by Steven on June 22, 2006
24. Geometry and Measurement

I am trying to solve the length of the hypotenuse of a right triangle with sides of 6mm and 8mm

asked by Victoria on February 29, 2008
25. math

How do I solve this? Describe the locus of points z satisfying: |z+2|+|z-2|=5 z is a complex number.

asked by Jennifer on February 4, 2010
26. math-precalculus

tan^3(θ)=3tan(θ) solve for all solutions.. please provide steps so I can follow

asked by Anonymous on May 24, 2017
27. trigonometry

solve graphically. Estimate to the nearest tenth if the roots are not integers. x^2 y^2 --- + ---- =1 9 4 3x-2y=6

asked by kelly on April 27, 2010
28. Algebra II

Solve: (1/81)^t=243^t-2 The book states to get the same base but I don't understand. Thanks for any help.

asked by Lucy on March 17, 2008
29. math

Find two fractions that are equivalent to each fraction: 2/5, 7/11, 15/23 and 150/325 and how do i solve it?

asked by joshuah on May 24, 2010

someone please help i hav posted my questions like 5 times and no one is answering, can someone please solve these inequalitys 6y+16 b-5>-2 2y+1-10

asked by Julie on March 18, 2008
31. geometry

The perimeter pf an equilateral triangle is 18 cm make an equation for x.Solve this ,and find x

asked by vyom on November 24, 2011
32. algebra

translate the verbal phrase “ 3 less than the product of 4 and a number is 17” into an equation, then solve

asked by kiarra on August 10, 2013
33. Math

solve: cot(2theta/3)= -sqrt3 Please help, I don't know how to start and how to set it up.

asked by S on September 29, 2014
34. Calc

Determine the max & min of g(x) = x(x^2 - x^3)^3 Get the derivative of the function and set it to zero, then solve for x.

asked by Icy on May 10, 2007
35. precalc

Solve the equation. (Enter your answers as a comma-separated list.) 5x^2e^(−2x) − 3x^3e^(−2x) = 0

asked by JB on March 15, 2016
36. Math

find the roots of x3+6x2+11x+6=0 what is the formula and answer how to solve this ??

asked by Krystel Mae Elento on September 5, 2015
37. Algebra II (check)

Assume that no denominator equals 0. (8y^3+27)/(2xy-10y+3x-15) I don't know how to solve this one.

asked by Jon on March 1, 2008
38. Math

There was an equation I was stuck on; 5x-3(x+2)=-12 solve for x. I tried working on it and got left with 5x squared is = to -6 but didn't know what to do after that? Please help

asked by Sonja on February 18, 2016
39. Math 116a

solve using the addition and multiplacation principles 1+6x

asked by Katie on September 26, 2011
40. Trig

2sin^2(x) = 2 + cos(x) interval [0,2pi) How do I solve this? Help would be greatly appreciated!

asked by Wendy on September 16, 2011
41. calculus HELP

Find the values of a and b that make f continuous everywhere. f(x) = (x2 − 4)/(x − 2) if x < 2 ax2 − bx + 3 if 2 ≤ x < 3 4x − a + b if x ≥ 3 solve for a and b? HELP ive tried everything

asked by Kate on September 9, 2012
42. Social Studies (History)

What was one attempt to solve the problem with working conditions in the Gilded Age?

asked by Nicole on November 7, 2013
43. Algebra II

Use analytical and graphical methods to solve the inequality: x©ø+10x©÷+31x¡-30 (2x)/(x+1)¡(4)/(x-3)

asked by N/A on July 6, 2011
44. algebra

How do I solve for x on both sides of the equation, i.e. 72x+48=42x-12? Is there a standard way of figuring this out?

asked by Lost on December 6, 2010
45. MATH

Solve the equation algebraically for x where 0

asked by Anonymous on September 3, 2009
46. algebra 2

solve the quadratic x2-22x=11 using completing the square explain in words

asked by kay on January 15, 2012
47. trig

solve the equation 2 sec x- tan x = cot x for the interval 0 to 360

asked by Clarkney on May 17, 2010
48. Calculus

Solve the integral: (2x-3)/(x^3-x^2) I'm stuck at finding A. I did partial fractions. I've already found B and C. At x=1, C=-1 At x=0, B=3

asked by Mike on October 3, 2018
49. math

please help me to solve thank you binary addition 101 100 10 1010 1110 -----

asked by jessie on May 5, 2011
50. Chemistry

How many grams of CH3COOH are present in 2.5^3 of vinegar. Also, what is the formula needed to solve? Thanks!

asked by Steven on March 5, 2011
51. math

Solve A = P + Prt for r, given that A = \$1175, P = \$500, and t = 9 years. Express r as a percent

asked by Anonymous on January 24, 2012
52. math

)SIMPLIFY i^2 square root of -80 2)SOLVE 49x^2+100=0 3)14-i^6 divided by i

asked by kaleb on November 29, 2010
53. algebra

College Algebra Directions: Solve graphically: x^(2/3)+x^(1/3)-2=0 I just don't know how to approach this?!

asked by Courtney on December 8, 2010

How do you solve this by factoring? 4p^2 + 121 = 44p I seriously don't understand and it's frustrating for me. Please help. (:

asked by Landon on December 4, 2008
55. Math

Rectangular prism below consists of troy's spaceship mode how do you solve it

asked by Sabrina on February 21, 2016
56. trig

Solve the equation for exact solutions over the interval [0, 2pi]. 4 cotx+2=-2

asked by me on November 29, 2011
57. math

solve for linear equation 2x + 3y = 6 (for x) i figured out the answer. thanks for your time though : ) x = (6-3y) ________ 2

asked by karla on July 7, 2007
58. Calculus

Solve the differential equation, we're using u substitution: dy/dx= 4x + (4x/ sqr root (16-x^2)) Thanks. Please respond!

asked by Taylor on December 6, 2009
59. Math

Consider the general quadratic equation ax^2 + bx + c = 0, where a is not equal to 0. Solve for x by completing the square.

asked by Annika on July 7, 2014
60. math

asked by Johnson on November 19, 2011
61. Math

Find the number that completes the equation. blank = 2 ----- --- 4 20 1/10. 2/5. 2. 4. Please explain how I could solve this. :)

asked by LOVE on February 4, 2016
62. math

PLEASE EXPLAIN HOW I CAN SOLVE MIXED NUMBERS PLEASE GIVE ME A EXAMPLE FOR PARTS THAT ARE SHADED THANKS

asked by Terence on March 12, 2008
63. Pre-Cal

solve and round your answer to 4 dec. sinx= .4 in [0,2pi] secx= -3 in [0,pi]

asked by Kim on March 6, 2012
64. Calculus

Solve without a calculator. cos(arcsin (3x/2)) I made a triangle but im stuck after that..

asked by Anonymous on March 29, 2015
65. Algebra

i try this one but graphmatica gives me different graph. Please help. Solve for y in terms of x and replace y with the function notation f(x). -2x + 5y = 9

asked by Eva on February 20, 2014
66. College Algebra

1 - 1 = 1 ______________________________________ 4x-12 2x-6 x^2-3x Solve the equation (its subtracting the first two fractions and equalling the last fraction)

asked by Tim on September 29, 2015
67. Chemistry

I don't get this problem... 6.0 N H2SO4 = ________ M How can you solve for Molarity without mL? Thanks, much appreciated!

asked by Adry on May 3, 2011
68. math

Explain the steps to solve this problem 0.000027 divided by 0.000009

asked by therealcharmxdude on October 7, 2018
69. Math

Write a situation for 15x -20 with a sign no greater than 130 and solve

asked by Stephie on October 5, 2015
70. algebra

how can i solve this equation: (a-b)(2a-b)(a+2b) can anyone be so kind to help me with it? p.s. I'm barely learning how to multiply polynomials.

asked by julissa on September 28, 2010
71. Algebra

Write an equation and solve. If 6 is added to twice a number,the result is 20.What are the numbers?

asked by Asia on March 10, 2016
72. stats

What are the steps to solve P(x>k)=.025 when the mean is 500, standard deviation is 100

asked by Lillie on March 13, 2011
73. Trigonometry

how do you solve for y=sinX+2. just the phase shift and period. even how to graph if anyone knows. i got stuck with this one

asked by Mariah on March 9, 2011
74. algebra 1

alright i have a few questions if its ok..? Simplify: 1. -2√(96a^5) 2.√(x+6)^7 3.√18a^5b * √12ab^3 4.√7/8 5. 2√10/6√50 6.1/3√27+27√1/3 7.Solve: √(2x-7) + 3=8 Thanks so much! really appreciate it!

asked by Ryan on May 13, 2010
75. trig

Solve the equation sinθ=0.3 to the nearest tenth. Use the restrictions 90°≤θ≤180°.

asked by Itzel on May 28, 2010
76. Please Reiny Solve it For me Again! please......

Solve for the value of x: log5(x-2)+log8(x-4)=Log6(x-1)..For your information that 5,8 and 6 are bases not just multipliers. Thank you.

asked by Seth on April 10, 2013
77. english

solve this puzzle make two words you will have one letter left. aeeioumnrrstv

asked by jane on December 18, 2008
78. Calculus

How do I solve e^(ax) = Ce^(bx), when a does not equal b? I know the answer has something to do with natural log, and that a has to be connected to b and c, but I don't know what.

asked by Chunky on January 16, 2016
79. math

i need help... i dont know hoe to explain this or how to solve it. Find the function rule: x= -2,-1,0,1,2 y= 9,4,-1,-6,-11

asked by Anonymous on March 6, 2017
80. trig

sin(-π) + cos 5π how to solve without a calculator. Please write steps and explain thank you

asked by Amy on February 16, 2011
81. algebra

1. x^2+6x-4=0 2. greater common factor -18a^3,3a^5 3. Solve 10x^4-11x^3+3=0

asked by Pinky P on December 31, 2011
82. math

What is the value of y if y=cos(Arc sin 1/2)? How can I solve this problem? Please help and explain! THANKS A LOT!

asked by Malisa on April 9, 2008
83. precalculus

solve exponential equation. express in exact form. e^x-42e^-x= -19

asked by Sara on January 15, 2012
84. Math

How do you solve: n is 2 given that it is even The directions say "let n be a randomly selected integer from 1-20. Find the indicated probability"

asked by Biren bahkta on February 16, 2011
85. Pre calc

Solve the given equation cos(θ) − sin(θ) = 1 I got the answer to be 3pie/2 and 0 but its wrong can someone help Thank you

asked by Samantha on April 15, 2017
86. algebra

how can i solve this equation: (a-b)(2a-b)(a+2b) can anyone be so kind to help me with it? p.s. I'm barely learning how to multiply polynomials.

asked by julissa on September 28, 2010

Use the properties of lines to parallel solve the problem. If p ðF q and mÚ8 = 52‹, what are the measures of the other angles?

asked by KiKi on April 25, 2010
88. math

6 ⅚ – 17/18 Solve the following problem and convert to lowest terms (mixed number)

asked by natasha on October 26, 2013
89. Math

(4b^4+2) - (7b^2-5) - (6b^4-2b^2) How do you exactly solve/simplify this? I get confused with the signs when it comes to adding/subtracting terms like these. Thanks much!

asked by Nikki on September 20, 2008
90. math

how do I solve this unit rate: \$11.49 for 3 pacages? I was absent, so I have no clue how to get the answer

asked by MIchelle on December 9, 2009
91. alg 2 check?

1.)solve for n:-7n-21=-63 my answer: n=3 is this correct? please explain 2.)identify the x and y int for te equation 3x-4y=12.

asked by tyneisha on July 15, 2013
92. Precalculus

Solve sin(x) = -0.36 on 0 le x lt 2pi There are two solutions, A and B, with A < B and A and B in radians to 4 decimal places.

asked by marie darling on April 7, 2013
93. algebra

Is there a link to a site where I can find a way to solve a Soma Cube, and where each shape would go? Thank you!

asked by Celina on December 22, 2008
94. HELPPPPPPP (TRIG)

solve the equation 2 sec x- tan x = cot x for the interval 0 to 360 please:)

asked by HELPPPP on May 20, 2010
95. Physics wavelength question, help please .

The energy of an X-RAY quantum of wavelength 1.0 X 10^-10 m is. its answer is 1.99 X 10^ -15, but i don't know how to solve it , thanks help please

asked by Shahab Mirza on October 2, 2014
96. Algebra 1

Solve for x "variable": Rectangle with length of (8x) m and width of (2x) m has a perimeter of 140 m.

asked by Belle on September 30, 2012
97. 8th Grade Math

Can somebody help me solve this problem? Simplify and evaluate the expression for y = 0, z = -1.5. -0.8z +0.005z(-0.001y - 3.1 + (-1.5z + 3))

asked by Elizabeth on November 1, 2010
98. algebra

solve polynomial equation by factoring 2x^3 - 12x^2 = 32x - 192

asked by john on December 3, 2014
99. Algebra1

don't have a good teacher. need to understand how if can solve to figure out if this is undefined t-3/3-5

asked by Josh on November 10, 2009
100. english

Janet left fingerprints on the glass, the detectives were able to solve the crime

asked by tammy on March 27, 2011