# Pre- Calculus

21,824 results, page 77

1. ### Finance ( Need help )

TexMex Food Company is considering a new salsa whose data are shown below. The equipment to be used would be depreciated by the straight-line method over its 3-year life and would have a zero salvage value, and no new working capital would be required. Revenues and other ...
2. ### pre algebra

the hundreds digit is half the tens digit the sum of the hundreds and tens digit is 12 the ones digit is an odd square number not equal to the thousands digit
3. ### Calculus

f (x) = 8x^3 - 12x What is the question? You have defined a function but not said what you want to do with it.
4. ### Calculus

can someone please prove the difference rule to me? d/dx[f(x)-g(x)]=d/dx f(x)- d/dx g(x) plz help
5. ### Calculus

4) f(x)= { 3x^2 x< and equal 1 { ax+ b x > 1 What is the relation between a and b if the function is continuous for allof x.
6. ### Calculus HELP

for the power seies n^4x^n/2(n-1)...find the radius and interval of convergence
7. ### calculus urgent

If you are given a graph of a function, how do you draw the derivative?
8. ### Calculus Test Question!!!!!

Find the derivative if y=sec^-1 (x+3) Please any help.
9. ### Calculus TEST!!!!

Find an equation for the tangent and normal to the curve x^2+y^2=9 at x=1
10. ### Calculus Help!!!

Find the derivative if y=e^(2x)-lnx^(2) Im stuck, all i have is 2e^(2x)-2/x
11. ### Calculus!!!

the derivative of cot^3sqrtx Do you use prduct rule, if so what is your u,v, dv, or du.
12. ### Calculus

Find the average value of sqrt(cosx)on the interval [-1,1]
13. ### Calculus

How do you find the derivative of (x+1) times the third root of (x-5)spuared(x=4)?
14. ### Calculus

Find the derivative. Simplify as much as possible. s(x)=(9-12x)/[(x/3)-(1/4)]
15. ### Calculus

Problem 12. Find the derivative of the function. f(x)=e^(x)^1/2 My answer is: [e^(x)^1/2]/2x^(1/2) Is this correct?
16. ### Calculus

solve the equation for y in terms of x. Can somebody walk me through this?
17. ### Calculus

For which values of r does the function defined by y=e^(rt) satisfy the differential equation y''+ y'-6y = 0
18. ### calculus

f(x)= {kx-3 if x is less than or = to 1 {x^2+k if x is greater than 1 find k such that lim f(x) (x to 1) exists
19. ### Calculus

What is the least positive integer that has exactly thirteen factors?
20. ### Calculus

How would I integrate (4dt)/(sqrt(15-2t-t^2)) That thing has me stumped.
21. ### Calculus

How would I integrate (4dt)/(sqrt(15-2t-t^2)) That thing has me stumped.
22. ### Calculus - Integrals

Integral of (dt/[sqrt(t)+25tsqrt(t)]} From 1/75 to 3/25 I'm at a complete loss at what to do.
23. ### Calculus - Partial Fractions

I've set a problem up, something like this. s^4: A+D=0 s^3: -2A+B-3D+E=0 s^2: 2A-B+C+3D-3E=0 s^1: -2A+B-D+3E=4 s^0: A+C-E=4
24. ### calculus

what is the median waiting time for f(x)=((1/8)e^(-x/8))? I said the answer was 5.55 is this correct? thank you!
25. ### Calculus

solve second-order initial value problem y"(x)= x e^-2x y'(0)= 0 y(0)= 0

Use the Midpoint Rule to approximate the integral from 7 to 17 (1x-1x^2)dx with n=3
27. ### Calculus

Givenƒ(x) = e^x, verify that lim (e^x+h-e^h) / h = e^x h->O = and explain how this illustrates that ƒ′(x) = ln e • ƒ(x) = ƒ(x)
28. ### Calculus

How do you simplify the sqrt of z^2 + 5. Any assistance would be greatly appreciated.

30. ### Calculus

Use algebra to evaluate the limit of lim h->0 (2-h)^3-8/h. Is the answer -12
31. ### Calculus

Use algebra to evaluate the limit of lim h->0 (2-h)^3-8/h. Is the answer -12
32. ### Calculus

Use algebra to evaluate the limit of lim h->0 (2-h)^(3)-8/h. Is the answer -12
33. ### HS Calculus

How do I find all line through (, -1) for which the product of the x- & y- intercepts is 3?
34. ### calculus

Solve the equation for x. e^ax=Ce^bx, where a cannot equal b Can someone explain this pleaseee!
35. ### high school calculus

How do you find the x-coordinate of any hole (s) in the graph of f(x)= x2-2x/x2-4?
36. ### Calculus

C(x) = 16x^(1/2) + x^2/1000 Find x to meet the minimum cost
37. ### calculus

Find the points on the curve y = 2x^3 + 3x^2 - 12x + 1 where the tangent is horizontal
38. ### calculus

Find the first and second derivatives of the function. h(x) = sqrt x^2 + 1
39. ### calculus

Please find the Derivative of the function y =sec^2x + tan^2x
40. ### HS Calculus/math

Find the Parametrization for the left half of the parabola y=x^2-4x+3
41. ### calculus

find the points on the curve y=2x^3+3x^2-12x+1 where tangent is horizontal.
42. ### HS Calculus/math

find the extreme values of the function and where they occur y=x^3+x^2-8x+5
43. ### calculus

find the limit for the given function lim (sin)^2(3 t))/t^2 t->0
44. ### Calculus

Find the derivative of 10x^2+4y^2=sqrt(7). Is the answer 20x+8y=0
45. ### Calculus

Find dy/dx of the function 10x^2+4y^2=sqrt(7). Is the answer 20x+8y=0
46. ### calculus!!

f(x)= x^3/x^2-4 defined on the interval [-18,20] f(x) is concave up on the region ? to ? and ? to ? the inflection points are ?, ? and ?
47. ### Calculus

Find the derivative of f(x) = x^2 ln (x^2) using the Product Rule, and simplify.
48. ### Calculus

If x + 7y = 29 is an equation of the line normal to the graph of f at the point (1,4), then f'(1) = PLEASEEE HELP!
49. ### Calculus

series n=1 to n=inf 4/(n^2 - 36) what happens when n=6 and there is 0 in the denominator? do we just skip it?
50. ### Calculus

dP/dt = k(P-a) dP/dt = kP-ka dP/P = k-ka is this right so far? was i supposed to distribute??? what do i need to do next???
51. ### Calculus

washer method!? Find the volume of y=x^2+3, y=3, between [0,2] around y=3
52. ### Calculus

Thanks Remy. I have one more - 2y + 9xy-4=0 I got -9y/2 + 9x
53. ### calculus

Oh pardon me i meant to ask what is the anti-derivative of square root x
54. ### CALCULUS

Use the Midpoint Rule to approximate the integral: (10x-3x^2)dx from -1 to 5 with n=3
55. ### calculus

Find the average value of the function on the given interval f(x) = 2x^3(1+x^2)^4, [0,2]
56. ### Algebra with calculus

write the expression in lowest terms: y^2+2y-8/y^2+5y-14 How do u do this problem?
57. ### Calculus

Find all the intervals on which the function is concave upward: f(x)= 4x^2-x/x^4
58. ### calculus i need help please

evaluate: integration of x^2 (square root of (1-2x^3))dx
59. ### calculus

How would you integrate tan5xdx ? Thanks in advance. Can you use u substitution?
60. ### Calculus II

Solve the Initial Value Problem: Let k and Po be positive constants. P(0)=Po dP/dt = kP^2
61. ### Calculus

3^2/3^4 I did this through my calulate and I came up with 1/9, but that is not the correct answer. I'm not sure what to do?
62. ### Differential Calculus

(1) lim x^3 - 125/x5 x^2 - 25 (2)find the inverse of the function f(x)=7x+5
63. ### Differential Calculus

Given that p=(2q^2-5)^2. when q=3, it is increased by 0.7%. find the appropriate percentage in p.
64. ### Calculus

Find the average value of the function on the given interval: f(x) = e^x/5, [0,5]

Simplify the expression: cos(2tan^(-1)x) any help is appreciated =D
66. ### AP Calculus

Use implicit differentiation to find the derivative for: arctan(xy)=1+x
67. ### calculus

just wondering if someoen could help me with this limit..: lim arctan[(x^2 - 4)/(3x^2-6x)] x->2

69. ### calculus - limits

limit as x approaches infinity; tan^(-1) (x^2 - x^4) any help is appreciated =D
70. ### calculus

i have to find the derivative (first) of y= tan^2 (3x-π) ^that is (3x- pi)
71. ### calculus

Find the volume formed by rotating the region enclosed by: x=5y and y3=x with y0
72. ### Calculus

maximum and minimum of y = cos(x) + sin (x)on the interval [0,2pi]
73. ### Calculus

Find the inflection points for f(x) = 12x^5 + 45x^4 - 360x^3 + 7
74. ### Calculus

Differentiate using the chain rule: y=(x+(x+x^(1/2))^(1/2))^(1/2) y'=(1/2)(x+(x+x^(1/2))^(1/2))^-(1/2) what are the next steps?
75. ### calculus

1 pt) Find the length of the curve defined by y=1/8(x^2−8ln(x)) from x=3 to x=5
76. ### Calculus

Give an example of a function that is integrable on the interval [-1,1], but not continuous on [-1,1].
77. ### calculus

derivative of y=ln x/x^2 can someone double check the answer 1-2lnx/x^3
78. ### Calculus

Locate the absolute extrema of the function on the closed interval f(x) = 2(3-x) [-1,2]
79. ### Calculus BC

s(t)=t^3 - 5/2 t^2 - 2t + 1 for all t>=0, 1. what was the displacement on 0<= t <= 4 2. at t =.5 is the function slowing down or speeding up?
80. ### calculus

write a power series for e to the 2x and find the interval of convergence
81. ### Calculus

Evaluate the definite integral.∫from 0 to 2 x/√(1+2x²)dx
82. ### Calculus

Prove that the average of LRAM and RRAM is equal to TAM.
83. ### Calculus

Find the area of the region bounded by: r=7-1sin(theta)
84. ### calculus

evaluate the limit as x approaches positive and negative infinity (x^2+6x+8)/(x+3)^2
85. ### calculus

Differentiate the following function. f (x) = 6 x 2 sin(x)tan(x) Where do I begin?
86. ### calculus

evaluate the limit: Lim as x approaches 2 (1r3 - 1rx) / x-3
87. ### calculus

evaluate the limit Lim as x approaches 3 (1r3 - 1rx ) / (x - 3)
88. ### calculus

find the lim cos 2x/(5 + x) as x approaches pos. inifinity
89. ### calculus

f(x) |x|+1 x<1 -x+1 x>or equal to 1 evaluate f(1) choices a) 0 b) 2 c) 3 d) -1 e) 1 I answered b) 2, got it wrong
90. ### calculus

find the points of intersection of the parabolas Y=(1r2 x^2) and Y=10x - 2.
91. ### calculus

find the points of intersection of the parabolas Y=(1r2 x^2) and Y=10x - 2.
92. ### Calculus

find the definite integral that represents the are of the region enclosed by y= 4x-x^2.
93. ### Calculus

If f(x)=e^(x+5lnx) find f'(4), correct to two decimal places.
94. ### calculus

Find the limit for the given function. lim t-->0 (sin(8t))^2/t^2
95. ### calculus

Find an interval of t-values such that c(t)=(2t+1,4t-5) parametrizes the segment from (0,-7) to (7,7). What do you do???
96. ### calculus

How do you find the area of the intersection of the circles r=sinx and r=cosx?
97. ### calculus

Find derivative(use logrithmic functions). y=x^-cosx
98. ### Calculus

HELP PLEASE Find the minimum distance from the point (4, 2) to the parabola y^2=8x
99. ### calculus 1

find the interval at which the function increases and decreases x^3\3 +x^2\2 +x +100
100. ### calculus

Determine the equation of the line that is tangent to y=8^x at the point on the curve where x=1/2