# 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 414
1. ## Algebra

How many real number solutions are there to the equation 0=-3x^2+x-4 A) 0***** B) 1 C) 2 D) 3 Help on how to solve this.

asked by Mehliya (Meh-La) on April 18, 2017
2. ## Math

Solve and please explain how you arrived at your ans: square of 3x-1=2

asked by Kadesha on April 29, 2012
3. ## Algebra

I really ned help how do you solve these types of equations 3x^2-27=0 2t^2=100 -4y^2=36 x^2+25=25 please help me and tell me how you got it

asked by kelly on January 12, 2008
4. ## University, Physics

Derive the error in equation: T1/2 = 1n(2)/lambda solve for T

asked by Kenna on March 25, 2013
5. ## chemistry

Rearrange and solve the following equation for λ: hvλ=mv2

asked by Abdul on September 5, 2014
6. ## mathematics

Solve the differential equation x^2dy+ (x-3xy + 1)=0

asked by musonda c on June 27, 2014
7. ## Geometry

Find the value of each variable and ST if S is between R and T. Draw a picture and solve each. RS=12, ST=2x, RT=34

asked by Priscilla on September 23, 2012
8. ## Math

Solve the following simultaneous linear and quadratic equations x=y; 2x^2-y^=1

asked by Christopher on June 27, 2015
9. ## Math

how to solve (√(2)/2) / (-2/√(2)) steps too please the answer is 1 in other words it's tan(π/4)= 1

asked by Amy on February 10, 2011
10. ## Math

how do you solve for y in the expression: x^3=y(y+3)? x^3=y^2 + 3y y^2+3y- x^3=0 Using the quadratic formula.. y= (-3+-sqrt(9+4x^3) )/2

asked by Jamie on August 24, 2006
11. ## Math

A: Solve the following equation: k2 + 4k = 0 A: By factoring B: By using the quadratic formula

asked by Anna on January 9, 2010
12. ## math

how do you solve this linear equation? x/3-1/3=-5 I do not understand this with fractions. Can anyone help?

asked by rmz on February 21, 2010
13. ## math

Solve the equation. (Find only the real solutions.) (2x)/(x+1) = (2x-1)/(x)

asked by Carol on January 19, 2014
14. ## trig

solve 2sin^2x+sinx-1=0 in the interval [0, 2pi0

asked by Katie on June 9, 2008
15. ## calculus

solve what is the limit x->(pi/4) (1-tanx)/(sinx-cosx)

asked by Anonymous on February 8, 2009
16. ## Math

5k^2u^2 3z^2 ________ + ____ 12b^2d^2 4bk^3 How would I solve this?

asked by Nadine on October 27, 2008
17. ## PreCal

I'm suppose to solve log(3)-27=x I get 3^x=-27 I can't go any father correct?

asked by Terri on November 29, 2013
18. ## Math

Solve ln 3 + ln (4x) = 4. Round your answer to the nearest hundredth. A. 0.01 B. 0.91 C. 4.55 D. 12.90

asked by Latanya on January 9, 2019
19. ## math

how do you solve quadratic equation 7t-5t^2 = 0 on ti-83 graphic calculator

asked by dev on April 9, 2010
20. ## 9th grade

i need more infor on literal equations solve ofr s: y= 3(t - s)

asked by lcaude on October 28, 2008
21. ## Math

Please help, how do I solve this: 7 gal/wk = ___ qts/hour

asked by Danny on October 28, 2009
22. ## Algebra2

Use properties of logartithms to simplify and solve. Thanks. ln(x-3)-ln(11x-23)+in(x-1)=0

asked by MV on December 5, 2011
23. ## Math

How do I solve csc^2 x = 5 algebraically over the interval 0

asked by Anonymous on October 23, 2015
24. ## algrebra 2

can someone please help me im stumped on these two. use analytical methods to solve the equation. 1+(1/x)=(42/x²) (7/x-4)=1+(9/x+4)

asked by tom on July 8, 2011
25. ## math

Hints to solve following nonlinear equation please? y=-4.9x^2+20x+10 9.8x+y=20

asked by momo on November 21, 2011
26. ## Math

how do I explain how to solve the following problem 2 X 10 square + 3 X 10 to the first + 5 X 10 to the zero +7 X 10 to the negative one

asked by Mattie on December 7, 2012
27. ## Math

Using the quadratic formula to solve for x in the equation x2 = 7x + 8 results in what value(s)?

asked by Susie on May 30, 2008
28. ## maths

solve 2log small3 x - log small 3 7x=1

asked by anonymous on February 2, 2012
29. ## Math

Solve for x,correct to TWO decimal places 4+5x>6x to the power 2

asked by Zonke on January 30, 2011
30. ## algebra

|5y-2| > 2 ok since it is greater than you would have to separate it into two equations first one would be 5y-2>2 second one would be the neg of it..so it would be -5y+2>2 and then just solve for it you should get y>0 and y>(4/5)

asked by Nicky on November 27, 2006
31. ## Applied Business Math/Colleg student

Solve the problem and reduce to lowest terms? 2/3+1/6+11/12=

asked by Nicole on January 29, 2011
32. ## maths

solve for x: cosecX+secX=2Square root 2

asked by rabin on December 29, 2016
33. ## Math

Solve for x: 3^(x+1)=2^x This is what I have so far... (x+1)log3 = xlog2 ...and now I'm stuck. Help plz? Thanks!

asked by Nikki on April 11, 2010
34. ## math

What will be the answer of 4x(x-1)+5=0 when i'll use quadratic formula to solve it. Thank you ! ^___^

asked by ghenny on September 11, 2014
35. ## math

Solve the radical equation: √300 or ã300

asked by jasmine on May 25, 2011
36. ## Geometry-yes or no

10/4=18/x would you cross multiply then divide to solve this proportion?

asked by Corie on January 31, 2013
37. ## math

Solve : 1000-999+998-997+... +4-3+2-1

asked by Im on August 23, 2012
38. ## algebra2

1. solve: 5+4x-2x^2=0 2. find k so that the like kx-3y=4k is a. parallel to like 2x-4y=1 - for this i got y=1/2x-1/4... is that right? b. perpendicular to line x-6y=2

asked by Anonymous on September 18, 2010
39. ## Algebra

The last problem I have that I can't solve either and it's driving me nuts. Assume b,c ‚ 0 (4b^2c^3)^4

asked by Ashli on May 27, 2008
40. ## algebra

solve the equation 2logx+log4=2 Can someone walk me through this

asked by Anonymous on January 30, 2016
41. ## Pre Calculus

Solve the inequality sinx>square root x.

asked by Hanu on May 3, 2014
42. ## math

-0.5 Q^2+24Q-Q*Q^0.5-100=0 solve the eqution find value of Q

asked by mike on April 12, 2010
43. ## math

how do i solve the problem of _____________________________ 0 14 20 i have to find out what the percentage is

asked by brit on April 18, 2011
44. ## math

Solve the following matrices.(sORRY I DON'T KNOW HOW TO DO THE BRACKETS) B= 1, -4 -2, 1 3, 0 D= 0, 1 1, 0 G= -3, 1 4, 5 FIND: a) DG = b) GD = c) BG = d) DD = e) GG =

asked by heidi on November 30, 2008
45. ## MAT 221

-10 < -2 + 8x < 22 4x + 7 < 11 or 1 ¨C x ¡Ü -2 Please help me solve these compound inequalities. Any instruction would be appreciated.

asked by Stib on June 23, 2014
46. ## math

I have 156 hundreds,290 tens,5 ones solve it

asked by erwin on June 8, 2017
47. ## trig

2(sinx)^2-5cosx-4=0 Solve for all solutions between [0,2pi]

asked by Anonymous on April 5, 2016
48. ## Alg 2

Solve the equation. Check for extraneous solutions. ln x + ln(x-2) = 1

asked by Yolie on February 2, 2012
49. ## Equation

Solve the quadratic equation. 12x2 + 23x + 10 = 0 A.5/4,2/3 B. 5/12, 1/5 C. 5/4, 2/3 D. 5/4, 2/3

asked by Lisa D on June 28, 2010
50. ## Math

Solve the piece wise function when f(17) f(x) = f(x-3)+2 if x > 10 -5 if x

asked by Shadow on February 9, 2013
51. ## math

Solve: tanx - 2sin2x = 0 0°< or equal to x < 360°

asked by CL on January 13, 2010
52. ## precal

solve cos(squared)x + sinx = 1 {0, 2pie)

asked by timmy on January 12, 2010
53. ## math

2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

asked by Jack on September 20, 2012
54. ## math

2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

asked by Jack on September 20, 2012
55. ## Alg III

Solve each absolute value equation. |x - 3| = 1 Okay here is what I did: x - 3 = 1 x = 4 or x = -4 The book says {2,4} I'm very lost. Can someone help me?

asked by Chopsticks on August 20, 2009
56. ## Math

what is the sum of the solutions of the equation |2x-7|=11? A) -9 B) -7 C) 5 D) 7 E) 9 ***What is the most efficient way to solve this?

asked by David on March 1, 2014
57. ## algebra

Using factoring and zero-product property,please solve the following: 9r^2 -30r +21=-4 Thanks very much.

asked by Jack on December 26, 2016
58. ## Math

Solve each equation by using the properties of equality. Check. 4x – 18 = 65

asked by candy on July 7, 2011
59. ## Physics

1. The resultant of two forces X and Y will be greatest when the angle between X and Y solve it

asked by Halimoh on May 12, 2019
60. ## Physics(Please Help!!)

how do you solve the following equation: 77.18 kg* 9.81* 5.83 divided by 4.37 and what does the asterisk stand for

asked by Kelli Kenyon on May 9, 2011
61. ## Algebra

How do you solve sin x * cos x = 1/4 I don't know where to start.

asked by Dave on June 10, 2017
62. ## math

How do I solve these for x? 1) 1+2log5x=7 2) logaX=3/2loga9+loga2

asked by Keyshia on April 28, 2013
63. ## Trig

Solve Sinx=Cos2x-1 for all values between 0 and 2pi

asked by dfg on March 21, 2012
64. ## Algebra

Suppose that D + E = A, that N/A=.25 and that D/A=.60. Solve for N/E. Help! Explanation please. I want to understand this problem.

asked by Katie Elizabeth on September 9, 2014
65. ## Algr1

Find the x and y intercept of the equations. 1.5x+6y=-30 2.x-4y=-16 3.-3x+4y=12 How would I solve these and what is the anwsers

asked by Hannah on November 5, 2012
66. ## Alg2

Solve the equation -5e^-x + 9 = 6 I subtracted 9 to both sides and got: -5e^-x= -3 < this is where I'm stuck at.

asked by Yolie on February 2, 2012
67. ## math

how do i solve? sin2ɵ = cos ɵ and sin2ɵsinɵ=cosɵ

asked by jackie on March 10, 2009
68. ## College Algebra

How do you solve L=2.43*9.0^0.3326 to get the wingspan of a pelican in feet?

asked by Bobbie on April 11, 2010
69. ## MATH HELP PLS

Given the following functions f(x) and g(x), solve (f + g)(3) and select the correct answer below: f(x) = 6x + 3 g(x) = x − 7 4 17 25 31 is it b

asked by Oscar on February 2, 2016
70. ## trig

Solve for X. Leave answers in logarithmic forms. 3^(2-x) = 2^x Thanks.

asked by Peter on June 16, 2009
71. ## Algr1

Find the x and y intercept of the equations. 1.5x+6y=-30 2.x-4y=-16 3.-3x+4y=12 How would I solve these and what is the anwsers

asked by Hannah on November 5, 2012
72. ## math

Solve for x: sin2x + cos^2x = 1 0° < or equal to x < 360°

asked by CL on January 14, 2010
73. ## Algebra 2

solve and graph the inequalities y >=xsquared y

asked by Abby on March 11, 2009
74. ## Algr.1

Find the x and y intercept of the equations. 1.5x+6y=-30 2.x-4y=-16 3.-3x+4y=12 How would I solve these and what is the anwsers

asked by Hannah on November 5, 2012
75. ## math

Please explain the steps on to solve this equation. x^-6 - 8x^-3 + 16 = 0 k^-4/3 - 10k^-2/3 + 21 = 0

asked by Hellga on January 9, 2008
76. ## Math

solve: 4x+18=22 please help. i just need to understand how to do this for i have many problems like this on my final, and i have forgotten how!

asked by EAW on January 13, 2008
77. ## math

2x^2-5x-12=0 solve by completing the square. please explain how it's sovled.

asked by sahar on September 10, 2013
78. ## algebra

How would you solve this one 40x^5-56x^4+24x^3 divided by -8x^2

asked by Amanda on December 7, 2013
79. ## chemistry

how do you change Density= mass/volume (D=m/v) to solve v or m?

asked by Jess on September 22, 2010
80. ## Algebra mat/116

My question states: Solve for {y|y } and I do not understand what to do. The problem is: 8y - 13 < 7y - 12 Please help

asked by unknown on August 31, 2009
81. ## Calc

How do i begin to solve this? integralof dx/(cube root of 3x+4)

asked by Katie on February 27, 2010
82. ## Geometry

Hi I was having some problem with this question, its been a while since I had been in geometry. I think you foil, but Im not sure. Solve for X. 2(x+4)(x+3)= 3(x+2)(x-1)

asked by George on December 11, 2016
83. ## math

can someone elxplai to me how to solve this differential equation. dy/dx= (x^2+3y^2)/2xy

asked by Anonymous on June 18, 2015
84. ## math

will someone explain to me how to solve this expression. 3x – 4 + x = 32 pls help. I am not good at this

asked by need help on January 11, 2018
85. ## maths

solve 2cos(2theta-pi)= -2 , -2 pi less or equal to theta less than 2 pi

asked by haile on May 17, 2015
86. ## math

solve the equation,(112 - 38) x 14 divided by 7 + 142

asked by kiki on February 19, 2012
87. ## Algebra 1A

Could someone solve this for me please? (-3).(-7)>(-3)(-4) and also determine whether the inequality is true or false.Thank you

asked by Don on October 4, 2009
88. ## Algebra

solve the following quadratic 100x^4=400x^3+2100x^2

asked by Jodie on February 25, 2013
89. ## Maths - HELP PLZ

HOW CAN I SOLVE THE INEQUALITY GRAPHICALLY 3X^2 + 10X - 8 > 0 Any help would be appreciated

asked by Jack on November 21, 2012
90. ## Algebra

if V(r)=(4/3)(pi)r^3 find V(2r) ------ V(r) I'm very confused on how to solve this function. Could someone guide me through this?

asked by Finn on August 22, 2016
91. ## algebra

solve the following simultaneous equation algebraically,for a and b 8a+5b=23 12a+3b=12

asked by walter on October 23, 2007
92. ## Math Fractions

How do you solve this and problems like it: 3/4 of _____ is 90 5/6 of 120 is ______

asked by Rosie on March 19, 2009
93. ## algebra

Please simplify the expression and solve the equation.Thank You. v^2+6v+8,/v^2+v-12, devided by v+2/2v-6

asked by Anneliese on April 16, 2017
94. ## Math

1/4=3-2x-1/x+2..so far i have 8x^2-19x+4=0 do i use quadratic formula to solve the rest of the way?

asked by Roger on September 21, 2010
95. ## Trigonometry

Can you please help me solve this trig equation for 0 ≤ x ≤ 2π? 9sin^2(x)-6cos(x)-10=0 Thank you!

asked by Lucy X on December 7, 2008
96. ## Math

Can someone explain how to solve this equation using each step? I'm confused. (2^8⋅5^−5⋅19^0)^−2⋅(5^-2/ 2^3)^4⋅2^28

asked by CCB on February 22, 2017
97. ## introduction to computers

how do you solve 5,ooo megabytes is equal to how many gigabytes?

asked by Anonymous on October 22, 2007
98. ## algebra

How would u solve 2r\r+5 -2(r+5)(r-4)=4(r-4) I don't kow if I should distribute the negative 2 to (r+5) What should I do from here?

asked by michelle on March 21, 2010
99. ## Math pre-algebra

Write a proportion for each phrase, then solve. 3 oz for \$1.65;5 oz for x dollars

asked by Dakota on January 4, 2011
100. ## Calc

Solve: du/dt = (sin t) / (u^2 + 1) So far I got: arctan u = -ln |csc t + cot t| + C I'm not sure where to go from there. Thank you so much for the help!

asked by Erica on October 31, 2011