# math..solve for u again

159,206 results, page 66

1. ### Math

Solve for the inequality: 1/3^x (1/3^x - 2) < 15 I know the answer is x > - (log 5/log 3), can someone explain me how?
2. ### Math

Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3.
3. ### Math

Solve for triangle ABC which have angle A =25.25, angle B =60.51 and a =3.82.Find c
4. ### math

Solve the equation. -6p - 21 = 3p - 12 A. 1 B. 3 C. –3 D. –1 im sure its D but I wanna make sure am I right?
5. ### Math

Solve (16x^2)^-3/4 Please help using step by step. I don't understand how to do this. Thank you
6. ### 6G Math (pls check my answer)

Solve the inequality. y+3<6 My answer: y+3<6 y+3-3<6-3 y<3 Am I correct?
7. ### Math

Explain how to solve the following system of equations. What is the solution to the system? 2x+2y+z=-5 3x+4y+2z=0 x+3y+2z=1
8. ### Vectors Math

If Vector a = (2, 2k), Vector b = (4, -k), are perpendicular, solve for k with full solutions?
9. ### math

How would I solve this equation for x? 0=3.9657(0.9982^x)ln0.9982
10. ### math

Solve the initial value problem d^2x/dt^2+2dx/dt-3x = 0, x(2π) =1, x(2π) = 13
11. ### Math

How would you solve: 5 cos x + 2 = 0 In the domain of 0 degrees to 360 degrees
12. ### Math

how would I solve this on a graph? -3x-2y=18 and 3x-y=0 how would my equations look? y=-9+-3/2x y=0+3x correct?????
13. ### Math

Write a word problem using 7 groups. Solve the problem
14. ### Math

Solve the system using elimination. 10y − 2x = 50 6x − 3y = 12 A. (5, 6) B. (2.1, 0.2) C. (2.1, 4.6) D. (6, 5)
15. ### Math Correct Me!!

What is the common multiple in the proportion below ?? X/12= 24/36 2 3 4•• 6 Solve the proportion 4/5= x/27 21.6 20•• 33.75 18
16. ### math

please show step by step! solve for m and n if mn=1300and (m+15)(n-30)=1300
17. ### math: pre-calculus

Solve the equations. Log(6x-1) = Log(x+1) + log4
18. ### Math

how do you simplify this expression? -12/3*(-8+(-4)^2-6+2 Can someone help me solve this step by step plzzz!!!
19. ### Math help

Please solve it step by step. Integrate: ∫(x^3/(√(x^2+1))dx
20. ### Math Help!

Help me please. Not sure how to solve this. Can someone show me how to do it step by step. -2/5x-9<9/10
21. ### Math

can someone help me solve for x for this equation (0.5)(((cos(180-x))^(2))(cos(90-x))^(2))=0.0500
22. ### Math

can someone help me solve for x for this equation (0.5)(((cos(180-x))^(2))(cos(90-x))^(2))=0.0500
23. ### Math

write an equivalent equation that does not contain fractions then solve the equation 2/3x + 1 = 1/2
24. ### math

Given the function f(x) = 5(x+4) − 6, solve for the inverse function when x = 19. I believe the answer is 1 A 1 B 68 C 72 D 84

26. ### Math

use the triangle and the give information to solve the triangle. a=, c=, find b, a, and B
27. ### Math

Write a story problem that is associated with this proportion, then solve your problem. 5/\$21 = 12/n
28. ### Math

Solve the quadratic equation 2x² - 4x + 1 = 0 How many solutions are in the equation 3x² + 4x - 7 = 0
29. ### Calculus MATH

Problem statement a) Suppose f(x) is defined on 0 ≤ x ≤ 1 by the following rule: f(x) is the first digit in the decimal expansion for x. For example, f(1/2) = 5 and f(0.719) = 7. Sketch the graph of y = f(x) on the unit interval with appropriate scales for x and for y. Use...
30. ### math

Find the value(s) of x for the following. (Enter your answers as a comma-separated list.) f(x) = 6 sin^2 x − 6 cos x, and the interval is 0 is less than or equal to x and x is less than or equal to pi. (a) f(x) has a local maximum or local minimum. local maximum: ?? ...
31. ### calculus

test the series for convergence or divergence the series from n=1 to infinity of 1/(arctan(2n)) I again didn't know what test to use
32. ### Chemistry

Is odor a physical property? I would think it would be, but then again odor is caused by chemicals.
33. ### Algebra 2

A boat travels 60 km upstream and back again in 8 hours. If the speed of the boat is 16 km/h, what is the speed of the current?
34. ### Biology

What do plants and algal cells need to produce proteins? Where do plants and again cells get this supple from? THANKS!!!
35. ### Math

1.2 (1+ 23.0 x 10-6/°C*50) Could someone solve this problem for me and tell me how did you get the answer? I've tried to solve this problem in so many ways, but can't get the right answer. My multiple choices are A.0.001386 meters, B.0.00180 meters, C.1.201386 meters, D.1....
36. ### Math 141

I am having trouble with this problem. perform the indicated operations and simpily the result as much as possible a) (3x - 2) (x^2 + 2x - 4 ) the answer i got so far is 3x^3 + 4x^2 -16x + 8. Am i done or i have to conitnue to simplify? if so, what do i need to do? b) 10x^3y^2...
37. ### Math

Did I solve this problem right? Here is the question: Use least common multiple or greatest common factor to solve this problem. Mark has 153 hot dogs and 261 hot dog buns. He wants to put the same number of hot dogs and hot dog buns on each tray. What is the greatest number ...
38. ### Algebra

Please help me to solve this problem. Thank you in advance for helping to solve this problem. Have a great day. Here is the question? Find an equation of the line that passes through the two given points. Write the equation in slope-intercept form, if possible. Passes through...
39. ### Algebra 1 (Ms. Sue)

1). Solve each equation. 17 = w - 4 2/3s = -6 1/3y + 1/4 = 5/12 x/8 - 1/2 = 6 5/6x - 1/3 = 5/2 2). In 1668, the Hope diamond was reduced from its original weight by about 45 carats, resulting in a diamond weighing about 67 carats. Write and solve an equation to find how many ...
40. ### math, algebra

Can someone put this in an equation for me . I want to solve it but i just need how to set up in the equation. (80)

y+2/y=1/y-5 *Please solve the rational equation. Done the same way as the previous post.
42. ### math,help

i am stuck with this problem: Problem #12 Solve by using the quadratic formula. 5x^2 + 5x = 3 i am at this step x = (-5 (+/-) sqrt (85))/(10) you are done!
43. ### math

What is the probability of a die not coming up six, six times in a row? How do I solve that problem?
44. ### math, I think I have it now...

Is this the correct way to solve this? 5+3x4-2= 3x4=12 +5= 17 -2+15 is the answer 15?????
45. ### math

Find the product of (4de^2)^3 (de)^4? 2. Find an equation of the line containing the points (-4,-7) (1,-10) How do you solve this?
46. ### Math

translate to an equation: and then solve The sum of two numbers is -4 and their difference is -10. Find the numbers.
47. ### math/algebrall

solve the system of equations:4x - 3y equals 14 and y equals -3x plus 4 i think its either 1(4,10) (2,2)
48. ### math

How can I solve this problem. Find the missing length of the right triangle. 7 height and 24 length
49. ### math

Solve this equation. Verify your solution using a graphing utility. log_1/3(x2 + x) - log_1/3(x2 - x) = -1
50. ### math help

This problem is a little different Simplify: ^5 sqrt symbol(x^7 y^4) How would I solve this problem?
51. ### math

solve by the substitution method 3x + 6y = 27 -2x + y = 12 what is the solution of the system..(type an ordered pair, or N if there is no solution)
52. ### Math

1.Sally age is 12 years plus half her age. How old is she? 2.Given that: 4x-y+9=0 and 3y-2x=7, solve for x.
53. ### math

Solve the system 6x+4y = 12 9x+6y = 18 If the system has infinitely many solutions, express your answer in the form x=x and y as a function of x x=? y=?

How do you solve this equations? (xy^-3)^-5 (3x^4)(4x^12) ab^-6 ______ c^0d^-4 x^3y^0(z^-4) Can you please show it step by step? Thanks.
55. ### Math

Solve for the indicated variable: (x/a)+(y/b)+(z/c) = 1, for c This is what I have so far: z/c = 1-(x/a)-(y/b) z/c = 1-[(xb-ay)/ab] z/c=(ab/ab)-[(xb-ay)/ab] z/c=(ab-xb-ay)/ab ...I'm not sure if it's right so far, and if it is, i don't know where to go after that. Help? Thanks!
56. ### Math

Solve for the indicated variable: A = 2(pi)r^2 + 2(pi)rh, for positive r (and by pi i mean 3.14...) This is what I have so far: A = 2pi(r^2+rh) A/2pi=r^2 + rh ? Thanks!
57. ### Math

Solve by either graphing and then get an exact solution by using either substitution or elimination: x-3y=6 2x+y=2

Solve by elimination method 3x - 6y =4 3x - 6y =5 is the answer x=9 and I think it is inconsistant and not consistant
59. ### Math

x = 3 -2x^(2) / (1/3)^(-x) how to solve? would I multiply 3(-2) than square? Also, when I move (1/3)^(-3) to the numerator would it become (3)^3
60. ### Math need by 9pm cst

Solve. Please show step by step process. 5/8 x+1/16 x=11/16+x
61. ### Math

Solve this In/Out table using an equation. In= 5,6, 8, 10, 12 Out= 61, 75, 100, 125, 150
62. ### math

Solve the equation in the interval [0,2pi]. List all solutions tan^2(x)+0.8 tan(x)-3.84 = 0
63. ### Math

Use the echelon Method to solve the system of three equations in three unknowns. 2x+y+z=9 -x-y+z=1 3x-y+z=9
64. ### Math/Trig

Solve: sin x - 2sin x cos x = 0 for 0 is less than or equal to x is less than 2pi.
65. ### math

PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!
66. ### math

PLEASE!!!!i need help on these 4: *4y=15-3x 2y=3x+21 *4x=5y-14 y=-6x-9 *5x=4y-30 2x=3y=-12 *2/3y=10+4x 5x=1/3y-8 use linear combinations to solve the system of linear equations thank you!!!
67. ### Math

Solve for x. log3(x+7)=2-log3(x-1) Write the exact answer using base-10 logarithms.

69. ### Math

Solve the logarithmic equation. Please show all of your work. Loga(x+4) + loga(x-4) = 4
70. ### math

Solve each system of linear equations by both graphical and algebraic line 1 x+2y=4 line 2 x-y=0
71. ### University Math

If f (x) = (x^2+5x+2)^2, find f'(x). Find f'(5). Please show your work and explain it so I can understand how to solve this. Thanks
72. ### math

Please show me how to solve: For what value of k are the graphs of 12y = -3x + 8 and 6y =kx - 5 parallel? For what value of k are they perpendicular?
73. ### math

Hi I Have A Question About Rolle's Theorem Why We cant solve [ F(x) = abs(x) ] ? *abs = absolute
74. ### Math

Find approximations of the given value f(x)={4; 4>x {x^2 2<x a)f(-6) b)f(0) c)f(2) d)f(4) e)(f(6) − f(4))/(6 − 4) I don't understand how to solve this problem. Thank You.
75. ### Math

Please show me how to set and solve: The sum of two numbers is 90. Their difference is 12. What are the numbers?
76. ### Math

How do I solve: sqrt(3)tanx= I need to use the identity tanx=sinx/cosx Thanks
77. ### math

solve the absolute value 3/2x+4/-1=11 // stands for brackets could someone explain /2x+7/<=27 /2x+10/>26 /2x-1/=3 I do not understand if someone could help
78. ### Math

Can u solve and show steps for x/2 + 1 = 1/4x - 6? I subtract 1 from each side. Then I times each side by 2 to get x alone. Do I multiply 2 1/4 and 7?
79. ### math

solve the pair of equation for x and y respectively,2xpower-1 - 3y-1 equals 4 and 4xpower-1 + ypower-1 equals 1
80. ### math

solve for x: x=9^(logbase9(5)+logbase9(9)) Note: Your answer must be exact and in simplest form
81. ### Math Systems

I cannot solve these last three systems. Could you show me the work for them so i understand how to do them. 1) x-y=1 2x+y=5 3x-4y=2 2) 5x+8y+6z=14 2x+5y+z=12 -3x+6y-12z=20 3) x^2+2xy-2y^2=-11 x^2+xy-2y^2=-9

Find a6 for an arithmetic sequence where a1=3x+1 and d=2x+6 . I can't even solve it because I do not have any idea.
83. ### Math!

Solve the equation on the interval 0<theta<2pi -tan(2theta)+2sin(theta)=0
84. ### math

Solve the equation 8 cos^2 X -2 =0 given that 180< or equal to X <or equal to 360 degrees.
85. ### math

Perform the given set operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. please solve this: {x | x is a multiple of 2} ∪ {x is a multiple of 7}
86. ### MATH

Use your calculator to compute the actual roots. Use the Quadratic Formula to solve x2 – 4x – 8 = 0.
87. ### math

please solve 100 divided by 5 to the 2nd power times 4 to the 3rd power.
88. ### Math

How do I graph the inequality on a number line? How do I solve the problem? x < 8 (The < has a small line under it)
89. ### Math

1. Solve: log (y-1) = -log(y-9) 2. Find the inverse of the logarithmic function f defined by f(y)= 2log5 (2y-8)+3.
90. ### math

solve sinx/2,cosx/2 & tanx/2 of the following:- (a)sinx=1/4 & x lies in second quadrant.
91. ### Math

Solve the equation 13r = 3/7. Express your answer in the simplest form. a r = 91/3 b r = 7/39 c r = 39/7 d r = 3/91 Is c the correct answer.
92. ### Math

Solve the equation. Choose the answer in simplest form. 4x = 8/7 a. 1/28 b. 1/7 c. 2/7 d. 7/2 Would the correct answer be b.
93. ### math

for questions 1 and 2 chose the equation that you can use to solve the problem. 86 is 45% of what number A( 86 = 0.45n B( n=0.45 X 86 c( 0.45=n X 86 D( 86 = 45n
94. ### math

I do't understand what this is. how do I solve or simplify 100^12/100^8? Am I supposed to add the exponent or multiply them?
95. ### Math

I just need help to solve these steps. 8 to the 2 power +9(12/ 3*2)-7 I know the answer is 129 but I'm not sure of the steps to get to it.
96. ### Urgent Math

Please solve it in step by step. integrate: ∫(cot2x-csc2x)^2 dx
97. ### Math

26. If , what is ? A. B. 5 C. D. 3 The answer for this question is C. I need to learn exactly how to solve it (step by step) so I can do it on an exam. Thank you.
98. ### Check my answer? Math(:

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

Solve the equation. Explain each step and identify the property usedbto reach each step. 0.6x + 0.8 = 1.4
100. ### physics

The human eye is sensitive to electromagenetic waves that have wavelengths in the range from 400nm to 700nm (1nm=10^-9m). What range of the frequencies of electromagentic radiation can the eye detect? Can you please show me the steps and work because i don't understand what i ...