# Pre- Calculus

21,812 results, page 45

R^0.5-90=0

R^2+R^2=R^3
3. ### calculus

xy^3-e^3x=y^2

x^2/3 (x-9)

I=g^2/da
6. ### Calculus

y = ln(3x+5), then d^2y/dx^2 = a. 3/(3x+5) b. 3/((3x+5)^2) c. 9/((3x+5)^2) d. -9/((3x+5)^2) e. -3/((3x+5)^2)
7. ### calculus

f'(x) = (x^2-1)/x
8. ### Calculus

Let f(x) = ln(((2x–5) / (7x+4))^(1/2)). f'(x) = ...
9. ### calculus

dh/dx x = 7 , h (x) = (x^-1/2 + 8x)(4 - x^-1)
10. ### calculus

f'(x) of f(x)= 4e^x/1-e^x
11. ### Calculus

If y=ln((3x+2)^6(x+10)^3), then dy/dx=
12. ### calculus

dx/dt=5x-2y,dy/dt=4x-y

X2-7x-12/x-2
14. ### calculus

x = 6 h(x) = (x-1/2 + 5x)(1 - x-1)
15. ### calculus

f(x)=1-3x when f(x)-f(1)/x-1
16. ### Calculus

What is y' of y=(x-1)^(1/2)/(x-3)^(1/2)?
17. ### Calculus

why does ln(1/x)= -1/x ?
18. ### calculus

(10/((n^2)-1)+((2n-5)/(n-1))=(2n+5)/(n+1)
19. ### calculus

y= [(2x-1)(x^2) + x]
20. ### Calculus

if x^2 + y^3 = (x^3)(y^2) then dy/dx = ? thanks
21. ### calculus

If x2+xy=10, then when x=2, dy/dx=?
22. ### Calculus

(3x-4)e^x2-6=0
23. ### Calculus

(3x-4)e^x2-6=0
24. ### Calculus

-4=(5/2) x 3-b
25. ### calculus

f(x)=x^2-3x+1/x^2

f'(x^2)^2=?
27. ### calculus

if f'(x)=2f(x) and f(2)=1, then f(x)= ?
28. ### calculus

f(x)=(x+2)^3+(x-1)^4
29. ### calculus

f(x)= x^3/(2x-5)^4

xy-6=0;(2,3)
31. ### calculus

4(x*3)=2(x-4)+25
32. ### calculus

d^2/dx^2(q(x))-5*(d/dx(q(x)))+6*q(x)=0
33. ### calculus

x+4/5 + 5-x/4=37/10
34. ### calculus

Dy/dx of y=e^x/x^2
35. ### calculus

Dy/dx y=(2x+1)^4e^x
36. ### AP Calculus

If f(x)=3x^2-x+2 then what is 2f(a)? What is f(2a)? What is f(a^2)? What is [f(a)]^2? What is f(a+h)?
37. ### calculus

If f(x) = 5x - 7, what is f(2)?
38. ### Calculus

g(x)=(1)/(2e^(x)+4e^(-x))
39. ### calculus

t(x)=((x+4)^0.1-5x)^-5.1

-7-2
41. ### calculus

3x^3+4x^2-2x-4=0
42. ### calculus

f(x)=(1+x) what is f'(x) when x=0

ç(3x+2) dx
44. ### Calculus

dy/dx+((2x+1)/x)y=e^-2x
45. ### calculus

f(12)=15 and f(5)=6 f(x)=
46. ### calculus

if (g(x)=x,f(2)=7,and f'(2)=6. what is g'(&)?
47. ### Calculus

If y = (ln(x-2))/(3e^x, then dy/dx =
48. ### calculus

If g'(x)=2g(x) and g(-1)=1, then g(x)= a)e^2x b)e^-x c)e^(x+1) d)e^(2x+2) e)e^(2x-2)

Xy+3=x?x^3
50. ### calculus

F(x)= ((x^2+2x)/(x^2-1) )^3 *(3x^2 – 2x + 4)^5

3x^2+x+2=0
52. ### calculus

If f(x)= 1 + ln(x+2), then f^-1 (x)is...?
53. ### Calculus

ln(x+8)+ln(x–8)=0 x=?
54. ### Calculus

F(x) = -6x^8 F'(x)= y= 7e^x + 2 y' =
55. ### Calculus

y= (t^3 + t)/(t^4 - 2) y'=
56. ### Calculus

H(x) = (x^4 - 2x +7)(x^-3 + 2x^-4) H'(x)=
57. ### Calculus

F(x) = (x^3 - x + 1)^4 f'(x)=
58. ### Calculus

g(t) = 1/(t^5 + 1)^2 g'(t)
59. ### Calculus

F(x)= ln ((3t + 1)^4 / (2t + 1)^3) F'(x)=
60. ### calculus

F(x)= ln ((3t + 1)^4 / (2t + 1)^3) F'(x)=
61. ### calculus

F(x)= ln((3x+6)^4 (x^3 -2)^5 ) F'(x)=
62. ### calculus

e^2x-4e^x+3=03
63. ### Calculus

F(x)= ln((3x+6)^4 (x^3 -2)^5 ) F'(x)=
64. ### AP Calculus

[(3/x)-(4/y)]/[(4/x)-(3/y)]
65. ### Calculus

x dy/dx +2y=1
66. ### calculus

(2y^3-3y^2+3y-4)/(y-2)
67. ### calculus

9x^3+5x-8/3x-2
68. ### calculus

(x^2-4x+6)(x-3)^-3

(x^2-1)/5x+5

x^2-9/8x-24
71. ### calculus

3x^2-75/6x+30
72. ### Calculus

h(x)=(x^12-2)^3 h'(x)=
73. ### ap calculus

((1/-2-h)-1)/h

6e^3t=9e^2t
75. ### calculus

f'(-2) if F(x)=g(h(x))
76. ### Calculus

What is dy/dx when y=(x^2 - 4x ) ^3 ? A. 3(x^2 -4x)^2 B. (6x - 12) (x^2 -4x)^2 C. 3(2x - 4)^2 D. 6x^2(2x-4)^2
77. ### calculus

x ln(3 + x) dx
78. ### calculus

i)f(x)=(x^3 + -x^2 )(x^2 + 2)
79. ### calculus

i)f (x)=x^3 + -x^2
80. ### Pre-calc

Can someone please show me the steps to this problem...Thanks in advance. Let f(x) = Ð9xÐ. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)
81. ### Pre Cal 12

A 12cm by 8cm rectangular piece of metal is to be made into an open-top box by cutting a sqaure from corner and folding up the resulting flaps (sides). If the volume of the lidless box is 36 cm what are the integer dimensions of the box?
82. ### Pre Calculus 30

1.How many positive four-digit integers can be formed that are even?9x9x9x5=3645 2.Three differently colored six-sided dice are rolled. In how many different ways can the dice turn up? 6x6x6=216 3.How many positive integers five-digit integers start with the digit 1?1x9x9x9x9=...
83. ### Pre Calc

The symbol nCr, rea "n choose r" or "the number of combinations of n things taken r at a time" is the number: n! ----- r!(n-r)! a:find 4C1 b:Find 5C0 and 5C5 c: Find 7C1, 7C2, 7C3
84. ### Pre algebra

Electrical poles that carry electrical wire seem to get smaller the farther away they are. Find the apparent height of each pole if the tallest pole is 50 ft tall and there is 100 ft between each pole.
85. ### geometry

First of all let me apologize if this is the wrong section; this is a review question from a Calculus III class, but it doesn't involve any actual calculus so I posted it here. If I have a sphere with center (2,-10,4) and radius 10 what is: the intersection with the yz plane? ...
86. ### 6th grade pre-ap LA

We are writeing a letter to seniors in a retirement home. these people have no familey and no friends. what would be an apropitate way to adress the letter if it is personal but we don't know them? It can not be dear resident or dear friend or anything like that
87. ### Pre-Algebra [repost]

This is a realllyy tricky problem and I can't find two more solutions to the equation...someone please help! Find three ordered pairs for the given equation: 4x - 3y = 6 I got one: (3,2) I need help on this ASAP!! Thankss -MC
88. ### Math (Algebra/Pre-Algebra)

Ms. Caswell deposits \$450 into an account earning 8% interest per year. How much simple interest is earned after 4 years? Please explain.. I'm supposed to show work =] thank you!

I have to find the width of a river which is represented by a right trianle. The opposite side is labeled w and the adjacent side is 1oo ft. Theta is 54 degrees. Would my equation be opp = adjacent/cos(54)?
90. ### pre cal

Use synthetic division to show that x is a solution of the third-degree polynomial equation, and use the result to factor the polynomial completely. List all the real zeros of the function. x^3 - 28x - 48 = 0 Value of x = -4 Please help!!Thank you
91. ### Math (Pre-cal)

I can't seem to figure this out. A ship leaves at noon and travels due West at 20 knots. At 2:00 it changes to N54°W...Find the bearing and the distance FROM port at 3:00 pm. I've looked at this program for a while but can't figure it out.
92. ### Pre Calc

Find the work done by a force F of 30 pounds acting in the direction (2,3) in moving an object 3 feet from (0,0) to the point in the first quadrant along the line y = (1/2)x. The answer is 85.38 foot-pounds. I just need to figure out how to get the answer.
93. ### pre-algebra

Solve the problem. Please show all of your work. A driveway rises 11 feet over a horizontal distance of 112 feet. Find the slope of the driveway. Round your answer to two decimal places.
94. ### Pre-Calc

The concentration C of a chemical in the bloodstream t hours after injection into muscle tissue is C=3t^2+t/ t^3+50 A. Determine the horizontal asymptote of the function and interpret its meaning in the context of the problem. B. approximate the time when the bloodstream ...
95. ### EASY Pre-Algebra

In the following situation, determine whether you are asked to determine the number of permutations or combinations. Then do the calculation. How many ways can the four offices of chairman, vice chairman, secretary, and treasurer be filled from a club with 28 members?
96. ### pre algebra 8th grade(0, 0.3), (1, 0.5), (2, 0.7),

how would I graph a slope of 0.2 and a y intercept of 0.3? I know that y intercept is up and down, and the slope is rise (up)over run (across) , but I am confused because of the decimal format. Thank you, I asked mom but she doesn't know either, and I couldn't find examples in...
97. ### Math (Semicircle)(Pre-calc)

goo.gl/photos/e6Ks3v4Qqj177Nun6 The graph below is made from two semicircles. The domain of the function in the graph is [−8,8] [-8,8] . Find a piecewise formula for the function f(x) f(x). Help please, I already on my last attempt and any help is greatly appreciated!
98. ### Pre-Calc

1.) Find (f + g)(x) when f(x) = x + 2 and g(x) = x - 2. 2.) Find (f - g)(x) if f(x) = 2x - 5 and g(x) = 4. 3.) Given f(x) = 4 and g(x) = 2x - 1, find (f - g)(x).
99. ### Pre Cal

Vertify the identities, clearly show each step (vertify one side that they are equal to each other) sec^2+csc^2=sec^2+csc^2
100. ### Pre Cal

Vertify the identities, clearly show each step (vertify one side that they are equal to each other) sec^2+csc^2=sec^2+csc^2