# Pre- Calculus

21,305 results, page 54

### Calculus

Integral of [1/(sqrt(8+2x-x^2))] dx

### calculus

If f(x)=the integral of (3x^2+2x+4) dx, find C if f(1)=10.

### Calculus

What is the derivative of tan(1-x)^(1/2)?

### Calculus

Given h(x)=(6x^2+x)/x , find h'(0)

### Calculus

A(x) = x^2 + 128/x find A'(x) and A"(x)

### Calculus Partial Fraction

(x^2)/(x^3)(x-2)

### calculus

If dy=(2x+1)dx and y=7 when x=1, find the value of y when x=3.

### Calculus

Differentiate this y = 1 - cos^2 x

### Calculus

Differentiate this y = 1 - cos^2 x

### Calculus 1

Find f o g o h. f(x) = x + 9, g(x) = 3x, h(x) = x − 5

### Calculus

How do you simplify vectors? 1)AB + BC + CD 2) BC - FE - BA + DE - DC

### Calculus

Differentiate. g(x) = 5e^x√x

### calculus

why is sec(pi)x = (1/pi)secx

### calculus

Evaluate ¡Ò(9tanxcosx+5)dx

### Calculus

Integrate e^(-t/r) WITH RESPECT TO dt?

### calculus

what are the inflection points of 5x^2-45/x^2-25

### Calculus

Find the derivative of y=(2*x^(3/2))/(x^2+5)

### calculus

Find the derivative of y=(7x^(1/3))/(x^2+9)

### calculus

Anti-Derivatives 2x^6-x^3/x^2

### Calculus

Find the integral of 2/((2-x)(x+2)^2)dx.

### Calculus help plz

Integrate:(K+1/k^2+4k+8)dx

### Calculus

If f(x)=x^4, compute f(-2) and f'(-2) f(-2)=___ <--- ?

### Calculus

Let f(x) be defined by f(x) = x/(x - 4). What is the image of f?

### Calculus

how to make (x-3)^(2n)/4^(n) converge

### calculus

Find f'x given f(x)= 1/(1+(1/(1+(1/x))))

### calculus

find the derivative of d^2x/dt^2 if x^3=at^2 thanks

### integral calculus

help me integrate dx/(3x^3-5)^3 thanks

### Calculus

Inflection point of 3y=x^3+3x^2-9x+3

### Calculus

lim x--> 2+ (tan(pi/x))

### Calculus

F(x)=2x^2-log(x+5)/√16+x

### Calculus AB

If csc x = -2.5, what is the value of x?

### Calculus AB

Solve graphically (x-2)^3(x+4)(3-x)^2(x+1)^4 <0

### Calculus

Find dy/dx. e^(xy)=sin(x)

### calculus

Find the product [ 3 8 ] [ 4 5 ] 6 3 4 4

### Calculus

Find the zero(es) of f(x) = (e^(7-2x)) - 1

### Calculus

e^(1+2lnx) ----------- x^2 simplify

### Calculus

(kx^2)+m, x<-2 g(x)=e^(ln(2x+3))-2<x<3 kx-m, x>3 Find values of k and m

### Calculus integrals

(e^(3x)-2e^(2x)+(5e^x))/(e^x+1) how do I do this what is the techniques??

### Calculus

What is the unit vector of v: <-6, -8>?

### Calculus

If f(x) = 2xsqrt(x-6), what is the value of (f^-1)(40)?

### calculus

y'? 1.y=arctan(a+x/1-ax); a is constant 2.y=e^x-e^-x/e^x+e^-x

### Calculus

What is the absolute value of: 3 - 8i? A. 9 B. 64 C. √55 D. √73

### Calculus

Suppose that f(x+h)-f(x) =-4 h x^2 - 1 h x + 4 h^2 x + 3 h^2 -3 h^3. Find: f^1(x)

### Calculus

Evaluate ∫tan(3x)dx

### Calculus

Sinx=e^y , 0 <x <pi, what is dy/dx in terms of x?

### Calculus

If f(x)=(x^2+1)^(2-3x), then f'(1) = -3/2ln(2)-1/2 Is this correct?

### Calculus

Find f'(1) if f(x)=(h(x))^3 Chart: x= -3,-2,-1,0,1,2,3 g(x)= 0,1,3,2,0,-2,-3 h(x)= 1,2,0,3,-1,-2,0 g'(x)= 1,2,-1,-2,-2,-1,0 h'(x)= 0,-3,-2,3,-2,0,1

### Calculus

How do you fine the derivative of (x-3)^-3

### calculus

limx-->3 sin 3x/4x

### Calculus

Integrate x^2/(sqrt(x^2-25)dx

### Calculus

Integrate sqrt(16+x^2) dx

### Calculus

What is y=-2/7x-1 in standard form?

### Calculus

What is the function y (x) if it statisfies Y"=6 y'(1)=4 and y (1)=6

### calculus

Evaluate the integral. from 1 to 5 (ln(x))^2/x^3 dx.

### Calculus

Find f if f''(x)=2+cos(x) f(0)=5 f(pi/2)=−3

### Calculus

Find the derivative f'(x)= : f(x)=∫[2,x] ((1/2)t^2-1)^8 dt

### Math - Calculus

g(x)=∫[6x,3x] (u+2)/u-5) du Find g'(x)

### Calculus

What how do you compute the sum of 1/2 + 1/4 + 1/8 + 1/16 + 1/32 +++ 1/2N ?

### Calculus

What how do you compute the sum of 1/2 + 1/4 + 1/8 + 1/16 + 1/32 +++ 1/2N ? ..

### calculus

Differentiate the function. f(x) = e^7

### calculus

Differentiate the function.((x^2)-((3x^2)(ln(4x))))/(x^6)

### Pre-Calculus

How can this identity be proved/verified? cscx-sinx=1/(secxtanx) I have tried starting on both sides of the equation to get to the other. By starting on one side of the equation and manipulating it to make it look like the other side, the identity will be proved. However, this...

### pre-calc

A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely. Show your work. Sn: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + n(n + 1) = [n(n + 1)(n + 2)]/3 Sk: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + k(k + 1...

### Pre-Algebra[URGENT]

Need help on solving this one as well- A local telephone company charges $9.75 per month for basic service and $0.20 for each call made. You are allowed to spend more than $17.00 but less than $21.50 a month. What are the most calls you can make and remain within your budget? ...

### Pre Calc

Write a quartic function that has roots that are 3+5i, -4 and 7 and f(-3)=53. I have tried it a bunch of times and can't seem to get it. (x-3+5i)(x-3-5i)(x+4)(x-7) I multiplied them together x^4-9x^3+24x^2+66x-952 I was a little unsure what f(-3)=53 means. I thought I should ...

### Math - Pre-Algebra

44) A financial institution wishes to estimate the mean balances owed by its credit card customers. The population standard deviation is estimated to be $300. If a 98 percent confidence interval is used and an interval of ±$75 is desired, how many cardholders should be ...

### Pre-algebra

ughhhhhh! PA is so hard! my teacher is constantly comparing us to the regular math saying that if we can't figure it out then we should ask them. What does that even mean? we are more advanced! anyway... this website helps so much. Im definitely going to be posting about ...

### Pre-calc

A cardboard box with an open top and a square bottom is to have a volume of 45 ft3 . Use a table utility to determine the dimensions of the box to the nearest 0.1 foot that will minimize the amount of cardboard used to construct the box.

### 7th grade accelerated math / pre algebra

write two equivalent expressions for the area of the figure the figure is a triangle inside the triangle it says x + 4 and the #16 is written along the length of one side of the triangle. The answer is 8(x +4) and 8x + 32 but I don't know how they got it

### Pre-Cal: Limacons

Write the equations for two limacons (and if possible graph), (one sine and one cosine) with the same a and b values. (A does not have to equal b). You may choose to use cardioids or inner loop, dimpled, or convex limacons.

### calculus

find the circular cylinder of greatest volume that can be inscribed in a right circular cone with altitude 20 cm and diameter of base 10 cm. please answer in detail ..... so at a height h, the radius is 5(1-h/20) check that. VolumeCone= PIr^2 H = PI h * 25(1-h/20)^2 find dV/dh...

### Pre-Algebra

in- 0 1 2 3 4 X out- 1 4 10 0's output is 1 and 1's output is 4, then 3's output is 10....wat is the rule to this??? and wat are the outputs for 2, and 4?

### Pre-Algebra

in- 0 1 2 3 4 X out- 1 4 10 0's output is 1 and 1's output is 4, then 3's output is 10....wat is the rule to this??? and wat are the outputs for 2, and 4?

### Pre-Calc

Show that cos(pi - θ) = -cos θ for every angle θ

### Pre algebra

the temperature in canada is -8 degrees. the temperature drops 5 degrees. what is the current temperature?

### Calculus

I know I posted this problem earlier but I don't think it will be seen anymore since it's almost at the end of the page: Find the total mass of the triangular region with coordinates (-1,0),(0,4),and (1,0). All lengths are in centimeters, and the density of the region is (x)=5...

### Pre Cal.

So I posted these...but no one answered them. Are they right? Solve 4sin^2 x + 4sqrt(2) cos x-6 = 0 for all real values of x. My answer: (pi/4)+2(pi)k, (7pi/4) + 2(pi)k Solve 2cos^2 x-5cosx+2=0 for principal values of x. My answer: 60 and 300 degrees

### Pre-Cal

Hi, can someone please solve this step-by-step for me? I really don't get it... Directions: Use the quadratic formula to solve the equation in the interval [0,2PI). Then use a graphing utility to approximate the angle x. 4cos^2x-4cosx-1=0 thanks.

### INDO european languages

The Indo-european parent language was first spoken by a pre-historic people in: A} Western europe B} Middle east C} Northern india D} Southeastern europe .The answer i choose is C. Am i correct?

### 7th grade Pre algebra( math honors0

triangle ABC is smilar to triangle FED Ab= 12 Ac=15 De=4 df=5 1. write three equal ratios to show correspnding sides are prosportional. 2. find the value of bc 3. find the value of ef.

### pre-algerbra

A farmer is building a square pen 21 feet on each side. He puts one post at each corner and one post every three feet in between. how many posts will he use. please give equation

### Pre-Cal

[Note: I'm still having issues with identities with regard to trig] Verify the Trig. identities: (a). cot(x+y)=(cotxcoty-1)/(cotx+coty) (b). sin0(cot0+tan0)=sec0 [Note: 0=theta symbol]

### pre-cal: one-to-one property

i am not sure how to do these problems... *use the one-to-one property to solve the equation for x* 1. 2^(x-2)= 1/32 2. e^(x^2-3)=e^2x

### Pre calc

Someone please help me prove these A) cos^4x-sin^4x=cos2x B)tanx=sin^2x/1+cos^2x Please and Thank you

### Pre calc

Someone please help me prove these A) cos^4x-sin^4x=cos2x B)tanx=sin^2x/1+cos^2x Please and Thank you

### maths pre ap

Krispy Krunch cereal is 49% sugar. about how many ounces of sugar are in a 16 oz box of Krispy Krunch?

### PRE-CAL

How can I solve this questions and get those answers???? answers sec 13pi/4=? =>-ã(2) csc 13pi/4=? =>-ã(2) sec (-pi/6)=? =>2ã(3)/3

### pre algebra

Triangle XYZ has vertices X(- 1, 1), Y(- 3, 1), and Z( -2, 5). Reflect triangle XYZ in the y-axis. Find the vertices of the image

### math pre calc

solve sin theta = 1/2,90 degrees less than theta less than 180 degrees

### Pre cal

In a sinusoidal,function, how do you determine whether or not y= sin4(x) has a period of 2 pi If it is equal to 2 pi then what is a sinusoidal function that is not equal to 2 pi

### Geometry

A pre-image segment with endpoints (3,-2) and (4,2) is dilated to the image segment with endpoints (9,-6) and (12,6). What is the scale factor for the dilation?

### Pre Algebra

A spoke on the bike wheel is about 12 inches long. The diameter of the wheel is about how many inches?

### pre calc

Find the values of b such that the system has one solution. x^2 + y^2 = 36 y= x+b and then they give me an answer box b=_________ (smaller value) b=_________ (larger value) i have absolutely no idea how to even begin this and what they are asking. could some please help and ...

### pre-calc please help!!

an open box with a volume of 1500cm cubed is to be constructed by taking a piece of cardboard of 20 cm by 40 cm, cutting squares of sides length x cm from each corner and folding up the sides. show that this can be done in two ways, and find exact dimensions of the box in each...

### Chemistry

Consider the data below Temperature(0C) Diffusivity(m2/s) 736 2 x 10-13 782 5 x 10-13 835 1.3 x 10-12 Given this data, determine the activation energy for the diffusion process (units of Joules per atom or molecule) in this material and the pre-exponential factor (use units of...

### Finance

12. Your current $155,000 mortgage calls for monthly payments over 25 years at an annual rate interest rate of 6 percent. If you pay an additional $50 each month beginning with the first payment, how much interest expense do you save by pre-paying?

### calculus

hi! just needed help on an FRQ for ap calculus ab. let me know if you have any questions for me. I'm just really confused as far as what I am meant to do. If you could walk me through it that would be amazing. THANKS!! A population is modeled by a function P that satisfies the...

### Math

Two hundred tickets were sold for a concert. Forty percent of the tickets were pre-sold. How many tickets were sold at the door?

### Calculus

I am doing the AP calculus review, these are the questions I have no Idea on how to do: 1. if 0<= k <=pi/2 and the area under the curve y-cosx from x=k to x=pi/2 is 0.2, then k= 2. let F(x) be an antiderivative of (ln x)^4/x If F(1)=0, then F(9)= 3. What is the equation ...