# math..solve for u again

159,056 results, page 3

1. ### Math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...
2. ### math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...
3. ### Math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...
4. ### lively

Suppose that four times the square of a number equals 20 times that number. Whatis the number? It'll take you 45 seconds if you just plug in a few numbers Again -- putting the subject in the subject line helps. =) 4 n^2 = 20n zero is one solution. Solve for n.
5. ### math

1. solve by using the quadratic formula. 5x^2+x=3 2. solve by completing the square. x^2=5x+2 3.solve by using the square roots method. 5(x-2)^2=3
6. ### Health

Hi again..sorry I havn't been asking questions these days as my sister (y912f) is always on :P I wanted to know whether it is better to brush your teeth after eating or before. Because mostly everyone does it before but I don't see the point when they're going to get dirty ...
7. ### Physcis

You are traeling back and forth on a 10m straight lane. You go forth in 10 sec and back in 4 seconds,forwards again in 5 s and back again in 1 seconds. what is ur displacement. and what is your average speed
8. ### Calculus...again

I'm gonna have abunch of questions, cause I have a test. >_< If you planened to fence a rectangular pasture that must contain 4000 sq meters, what dimensions would require the least amount of fencing? Perimeter= 2l + 2w area= lw=4000 or l=4000/w P= 2(4000/w + w) Now ...
9. ### math

The answer was incorrect and that is why I am asking again Mr. Parsley
10. ### Math

(x/(x+8))-(8/(x-8))=(x^2+64)/(x^2-64) Would the answer be no solution? If so, why? Thanks again.

12. ### math

What is the solution to the inequality |2n+5|>1? A. –3 > n > –2 B. 2 < n < 3 C. n < –3 or n > –2 D. n < 2 or n > 3 I put A! :) Thank you again.
13. ### Physics

A golfer hits a ball from the origin with an initial speed of 35 m/s at an angle of 44 degrees above the horizontal axis. The ball is moving down when it lands on a green that is 3.00 m above the level where it was struck. Neglect air resistance. 1. How long is the ball in the...
14. ### Math

You are a letter and now your in a math problem explain to the numbers what your purpose is, how you are a friend, and how you solve algebra problems. Create a math problem and solve it. Use the letter and the number as the characters. Please tell me that this is not a ...
15. ### Calculus

Hi it's me again I need help with this too and I promise to never use this site again! I feel so ashamed for asking :( Use the Fundamental Theorem to evaluate the integral from 0 to 3 of the quantity x cubed minus 6 times x, dx.The answer has to have the antiderivative too. ...
16. ### The Tangent Function

Bobby is standing near a lighthouse. He measured the angle formed from where he stood to the top of the lighthouse and it was 30 degrees. Then he backed up 40 feet and measured the angle again and it was 25 degrees. Solve the height of the lighthouse.
17. ### math 123

solve the equation by factoring 3x^2-8x-3=0 (3x+1)(1x-3)=0 Now solve each for zero: 3x+1=0 and 1x-3=0 Lance can you help me.?
18. ### Math

how do you solve this system? I'm using substitution.. y=3x+4 y=-x^2 First I combined it: -x^2=3x+4 I don't know how to solve it now..
19. ### math-calculus

solve 3|x-8|=2x+7 i not get how to solve this the 3 infront of absolute value bracket confusing me.
20. ### Math

Solve for x. .006x^3=8889 x = approx 114, but I don't understand how to get that answer. Can anyone help me solve? Thank you!
21. ### math. solve for t

1/1024=42*0.5^(t/12.5) Solve for t. Please show work. Much appreciated!
22. ### Math

How do you write an equation to solve for x when you have a rectangle that is 7 for height and 3x - 2 on length and how do you solve for x?
23. ### math

Solve the linear system graphically (Dont graph it just solve it) x+ 2y = 8 3x+ 4y = 20
24. ### Math

Solve the following systems of equations: -2x+y=1 -4x+y=-1 (3,1) (-1,3) (-1,-3) (1,3) Could someone please help. I'm confused on how to solve this. Thank you!
25. ### Algebra

There are 4 problems that I don't understand how to solve so, please help me. A numerical explanation with words explanation would be nice. Thank you tutors. Rewrite each equation so it is in the form ax + b = c or x + d/e = f, where x is a variable. Then solve the equation. 1...
26. ### Guru Blue superstar

Hey Guru, Once again you shine that light. Thank you so so much for the links. Anybody else reading this should know I wish I had had Guru Blue as my teacher when I was a kid. A practical, patient and ever helpfull human being. Thank you again.
27. ### math

Please help me solve the following. Thanks, Write m^p = q using logarithms. Solve (1/e)^2x = 14
28. ### Math

Solve each literal equation for the indicated variable. 4x-5y=10 for y (the answer is y=4/5x-2) How do you solve this?
29. ### math

solve: 4+8 1/2 -:- (1/4) to the third power. solve -11-(x+30)=-41-2 (5x-18) please show your work
30. ### math

how do u solve a unit rate problem using proportions to solve
31. ### math/cal/trig solve for t

solve for t: 0=4sin(2t)cos(2t)-sin(2t)

34. ### Math

(a^6 x a^6)^k = (a^3)^(k+5) Solve for k. a. 3/2 b. 5/3 c. 2 d. 3 e. 5 I think when simplified its (a^12)^k = (a^3)^(k+5) but i don't know how to get k from here. How do you solve for these kind of exponents?
35. ### Math..solve for u

Solve u-2[2=3 [ is square root. Please show work
36. ### math

72 is what percent of 480? Write and solve an equation to solve the problem
37. ### math

using the interest formula A=P(1+r/n), solve for the indicated variable. solve for P
38. ### Math

How do I solve an inequality like this? -4x-8>4, I know that answer is 3 but every time I solve it I get 1 .
39. ### math

Solve the set of linear equations by the matrix method : a+3b+2c=3 , 2a-b-3c= -8, 5a+2b+c=9. Solve for a
40. ### math

solve: −4≤2x+6<18 i don't know how to solve this kind of problem with symbols??
41. ### Math

Solve the set of linear equations by the matrix method. a+3b+2c= 3, 2a-b-3c= -8, 5a+2b+c=9, solve for a

43. ### math

I'm struggling with this problem and can't find a good example in my book of how to solve. solve for y y-1/x-0=-3 thanks in advance
44. ### math

how to solve a prism with a square base that has a height of 45cm and its volume is 72000000cm^3. how do I solve it?
45. ### gr 10 math

Solve using the quadratic formula. a) x^2 - 7x + 12 = 0 a = 1 b = -7 x = -b +/- the sr of b^2 - 4ac /2a 7 +/- the sr of -7^2 - 4(1)(12) /2a 7 +/- the sr of -49 - 48 /2a 7 +/- the sr of -97 /2a 7 +/- 97 /2a -90/2=-45 -104/2= 54 The roots are -45 and 54. did i solve this correctly?
46. ### Math

Solve for x: x^4-15X^2+14=0 How would I solve this problem? Could someone please show me the steps?
47. ### Math

I have to solve the equation by finding a common base. 9^(x2-1)= 1/27^x Do i cross multiply and solve for x?
48. ### math

Solve the equation. 5 1 -4 2 -3 -5 X= 5 7 2 -6 2 5 The numbers are supposed to be matrices. I'm not sure how I would solve the problem
49. ### math

If P^0.223 =1 + P^0.123. Solve for P. Note:only a genius can solve this. Best of luck
50. ### math

helo sir/madam can u help me to solve this problem sOLVE 2log 15 +log(5-x)- log4x=2
51. ### Math

1. x/y=a/b ; solve for Y. Does anyone know how to solve this? I believe you gotta cross multiply but I'm lost from there. any help would be great. Thank you!
52. ### Math Algebra 2

Help please. I know how to compute for the rest mass but how can you solve this problem. Solve for v in m = m0/(sqrt of 1 - (v^2/c^2)
53. ### Math Algebra 2

Help please. I know how to compute for the rest mass but how can you solve this problem. Solve for v in m = m0/(sqrt of 1 - (v^2/c^2)
54. ### MATH LOGIC AGAIN

Hi can some one go back to my Math logic problem and possibly give me one more example? thanx :) I found a paper you may want your library to get for you: http://cat.inist.fr/?aModele=afficheN&cpsidt=13604737 It is probably in the local college library. I wish I had a copy. ...
55. ### math

is these answers correct? solve the equation: 2x^2 +8x - 17=(x +2)^2= x=-7,3 solve (v-5)^2-63=0, where v is a real number, simplify answer as much as possible. v=3 square root 7+5,-3 square root7+5 v``12.93725, -2.937254 use the quadratic formula to solve for x. 4x^2x-4=0 =x=1...
56. ### Physics/Science

A startled armadillo leaps upward rising 0.547 m in the first 0.202 s. (a) What is its initial speed as it leaves the ground? _____m/s (b) What is its speed at the height of 0.547 m? _____m/s (c) How much higher does it go? _____m Use distance vs time: d=vi*t - 1/2 g t^2 solve...
57. ### physics

A metal rod is forced to move with constant velocity along two parallel metal rails, connected with a strip of metal at one end. A magnetic field of magnitude B = 0:350 T points out of the page. a) If the rails are separated by L = 25.0 cm and the speed of the rod is 55 cm/s, ...
58. ### Algebra

Hi this question was already asked but there is still no correct answer. I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks The equation is: .05x-.6(x+2)=.08 Please show the work as...
59. ### General Studies

Someone on here gave me some sites that helped to unscramble words. I don't recall what the site was and I am in need help again. Could someone please give me some unscramble sites again? Thanks, Kimberly
60. ### Math help!

I don't understand this. Solve -5x - 6 = -6x^2 Rearrange to 6x^2-5x-6=0 (3x + 2)(2x - 3)= 0 Set each factor equal to zero and solve for x. I hope this helps.
61. ### math

Solve for each system and equations. y=-x-2 y=3x+2 set -x-2=3x+2 solve for x. thanx i was minusing 2 instead of adding two thanx alot
62. ### math

can someone solve this h/2 > 12 Treat the inequality just like an equation and solve. I hope this helps. Thanks for asking.
63. ### Math

I need to show how to solve this: Question - 50.50/ 0.5 The calculator shows the answer 101.00 Can you tell me how to solve it?
64. ### math

Solve the equation by using the square root property. Simplify all radicals. 2x^2 = 11 how do I solve this?
65. ### Math

Use properties of equality and numbers to solve each equation for x. A. 7+3x = 5x + 13 how am i suppose to solve i am kind of confused?!?!
66. ### Math

f(x)=3/(x+1) g(x)=(x^3)/5 h(x)=x^2+7x+10 a. f(x)=10 b. f(x)=g(x) c. g(x)=h(x) d. f(x)=h(x) I am told to solve the equations, but the term "solve" is so vague. I don't know what I'm doing. Please help lead me in the right direction. Thank you.
67. ### Calculus math

how do i solve these quadratics? c=10000 9a+3b+c=7975 36a+6b+c=6400 im unsure of how to solve as a and b are unknowns...
68. ### Math

108 is 46% of what number? Write and solve a proportion to solve the problem. I think it's 38 correct me if I'm wrong
69. ### math

Write and solve a real-world problem that you can solve by using objects or drawing a picture.
70. ### Math

5x - 4y =-3 Y = -3x + 5 Solve for x and y How do we solve for x and y when the formats of the equations are different. That's we here I'm lost. When I try to get the answer I get confused
71. ### math

transform the formula to find the volume of a rectangular prism to solve for width (w) solve for w:V=lwh
72. ### Math

How do you solve this problem S=2brh+2br(squared) solve for h
73. ### Math/Algebra

Solve by elimination. Please me solve this equation. x + 7y = 37 -x + 8y = 38
74. ### Math

Solve each formula for the indicated variable V=xr^2h solve for h. HElp please.

76. ### math

Solve 3sin2x - 1 = 0 Interval: [0, 2 pi] Solve 6cos^2x + 5cosx - 6 = 0
77. ### Math

I cant figure out how to solve this problem Solve by Factoring: 5x^2-32=-12
78. ### math

PLS help! I've try to solve it but it's not working .. solve the inequality... x/3 > +2 x/6
79. ### gr 10 math

Solve by factoring. a) x^2 + 3x - 28 = 0 (x+7)(x-4) d)x^2 + 8x + 16 = 0 (x+4)(x+4) f)9x^2 - 4 = 0 i)8k^2 - 3k = 0 k)x^2/6 - x + 4/3 = 0 did i do a and d right? Can you show me how to solve the rest?
80. ### math

Please solve and explain how to solve the compound inequality: 4 < 4a +3 < 18
81. ### Math

(x-3) is a factor of x^3+ax^2+bx-3 but when divided by x+2 the remainder is 15 Solve for A and B I know that A is 1 and B is -11, but I don't understand how to solve it
82. ### math

solve equation 3(k-4.8)=0.7(k-6.9) show steps to solve this please

85. ### Math

x/(x+1) - 2/(x-1)= 1 I have been trying to solve it but I do not know the steps to solve it.
86. ### Math, again

Please explain how to do this problem: 5 + 3 x 2 + (4+2)= I did 5+3=8 x2+ 16 +6=22 did I do this correctly? Thank you...
87. ### math

what standard unit is comparable to a centimeter? thank u again:)
88. ### Math

My question again is. Ebaluate each of the following expressions (1) |-27+14| (2) |-8 |+ |3|=|-8+3|
89. ### Math

what is the value of 3^0+3^-2? so I did 3^0=1 and 3^-2 =1/9 so 3^0+3^-2= 1 1/9 Is this correct? Thank you again for checking my work.
90. ### Math again!!!!

What is the total cost of 2 sweaters at \$13 each and 2 shirts at \$8 each
91. ### math

algebra sorry i posted again 3) -(2x + 7) what i don't get is that what to do with 7 because it has no variable...
92. ### math! again

Find the GCF for each set of numbers. 28,42,56 3,5 4,5,6
93. ### Algebra II

How do I solve the following problems?? 1. Factor: 4x^2-100y^2 2. Factor: 3x^2+27 3. Solve 3x^2+9x=0 4. Solve 12^2+30x=-12 5. 9a(a+1)=4 6. Solve 16x^2=25
94. ### Chemistry

What will be the pH of an aqueous solution containing 0.040 mol/L sodium hydroxide?? I got 1.40 or 1.398 I rounded the numbers is my answer right??? If not what's the right answer?? I know I wrote the question again, because on the previous answer I did not understand what u ...
95. ### Physics

An inductor used in a dc power supply has an inductance of 12 H and a resistance of 180 ohms and carries a current of .300 A. (a) How much energy is stored in the magnetic field? (b) At what rate is thermal energy developed in the inductor? ok once again I got part (a) .540 J...
96. ### Physics

An inductor used in a dc power supply has an inductance of 12 H and a resistance of 180 ohms and carries a current of .300 A. (a) How much energy is stored in the magnetic field? (b) At what rate is thermal energy developed in the inductor? ok once again I got part (a) .540 J...
97. ### Math

Solve the integral from [0,pi] of x*sinx*cosx*dx I don't understand how to solve this problem because if I let u =x and du =1 and dv=sinx*cosx, I can't find v. How do you solve this?
98. ### math

can someone solve these for me? -3x - 9 > 12 4 - x >= -10 x + 3/4 >= 1/2 -2x > 10 To solve, treat inequalities just as you would equations. For example, -2x>10 -2x/-2>10/-2 x>-5 I hope this helps. Thanks for asking.
99. ### Math

Solve the inequality: Absolute Value of X+5 is greater than or equal to 1. I'd appreciate someone telling me how to solve it and get the answer. Thank you
100. ### math

solve for unknown: log9 r=3/2 logG 2=1/3 Can you show me the steps how to solve this problems.Thank yo very much for your time