# Pre- Calculus

21,552 results, page 76

### Pre-Calc-Please check

I have three questions: 1. What is the remainder of (x^3 + 2x^2 - 5x+4) /(x-3) I think the answer is 34?? 2. Evaluate (4+5i)(2+2i) =4(2) +4(2i) + 5i(2) + 5i(2i) = 8 + 8i + 10i+10i^2(-1) =-2 + 18i 3. Using Rational Roots Theorem, list all possible rational root of f(x) = 2x^3...

### Pre Algebra

A pot water at a temperature of 25°C is placed on a hot burner. The temperature increases at a rate of 15° per minute until it boils at 100° C. The water continues boiling at this temperature. What is the slope of the graph after the temperature reaches 100° C?

### Pre calc

sin(θ − ϕ); tan(θ) = 5/12 θ in Quadrant III, sin(ϕ) = − sqaure root10/10 ϕ in Quadrant IV. I used the sin equation sin(a)cos(b)-sin(a)cos(b) However I am still getting the wrong answer

### pre algebra

Use the five steps for problem solving to answer the following question. Please show all of your work. Marissa has budgeted $65 for her monthly cell phone expense. If her plan with her wireless provider is $15 plus $0.25 for each minute, how many minutes can she talk on her ...

### Pre-Algebra

Equation M: y = 3x + 4 Equation P: y = 3x + 7 Which of the following options is true about the solution to the given set of equations? No solution One solution Two solutions Ininite solutions I thought it was infinite solutions but i got the answer wrong.

### Calculus

Integrate 1/sinx dx using the identity sinx=2(sin(x/2)cos(x/2)). I rewrote the integral to 1/2 ∫ 1/(sin(x/2)cos(x/2))dx, but I don't know how to continue. Thanks for the help. Calculus - Steve, Tuesday, January 12, 2016 at 12:45am 1/2 ∫ 1/(sin(x/2)cos(x/2))dx let u...

### Pre-Calc

Starkist tuna company will package tuna fish in 2-L cans. Find the radius and the height of the cans if the cans have a surface area which is less that 980 cm^2. I have no idea how to go about this, it seems like geometry to me. Can you give me some help? Please.

### pre calc

find all solutions on 0 is greater than or equal to theta < 2pi cos theta= 2sqrt3/3 4-1/2sin theta= (-16+sqrt3)/4 3(sqrt3)= -3cot theta -2=-1-2sin theta

### pre. cal.

Find the least integral upper bound of the zeros of the function f(x) = x^3 - x^2 + 1? I got... The least upper bound of the zeros of f(x) is -0.7549

### pre algebra

Each side of the triangle shown has the same length. If the perimeter of the triangle is 49 inches, the length of each side is 3 inches. true or false

### pre-algebra

Use algebra tiles to find the difference. Let one white tile equal +1 and one black tile equal –1.

### Pre-Algebra

To make a batch of cookies you need 3.25 cups of sugar, if you start off with 16.5 cups of sugar, how many batches of cookies can you make?

### Pre-Algebra

A student is 5 ft tall and casts a shadow 10 ft long. A nearby tree casts a shadow 60 ft long. Find the height h of the tree.

### Pre-Calc

Use the value of this trigonometric function to evaluate the indicated function. 1. cos(t) = 3/4 cos(-t) = ? Ans: 3/4 2. sin(-t) = 3/8 sin(t) = ? Ans: -(3/8)

### Pre calc 11

Sum of first 12 terms of arithematic series is 186, 20th term is 186. Wat is sum of the first 40 terms

### Pre-Calc

1. Calculate the period of sin(3x), cos(3x), and tan(3x). 2. Calculate the period of sin(x), tan(x), sin2(x) and tan2(x). Please explain, thank you :)

### pre-algebra

a field 480,000 m^2 is 160 m wide. What length of fencing is needed to enclose it? i thought you would just have to do A=lw 480,000= l(160) l= 3000 but the answer is wrong. the correct answer is in the six thousands. please help

### Pre-Algebra

Can someone help me with this one- Quadrilaterals are a special type of polygon because _______________. A. they always have exactly four sides B. the sum of their interior angles always measures 180° C. they always have opposite sides that are parallel D. they are always ...

### Pre-Calc

The game commission introduces 100 deer into newly acquired state game lands. the population N of the herd is modeled by N=(20(5+3t))/1+0.04t t>/=0 where t is the time in years a. find the population when t=5, t=10, and t=25 b. what is the limiting size of the herd as time ...

### constitution

In which era did the Court begin to expand the powers of the federal government? A. Marshall Court B. Taney Court C. Pre-New Deal D. Rehnquist Court is it A 2. Statutes passed by Congress are found in the: A. U.S. Code. B. Federal Register. C. U.S. Statutes. D. Book of laws. ...

### Algebra/Pre-Calc

Find the values for a and b such that f(x) is continuous on the interval 0 < or = to x < or = to 13. { 2x^2, 0 < or = to x < or = to 3 f(x) = { ax + 3, 3 < or = to x < or = to 7 { b, 7 < or = to x < or = to 13 Can someone explain? Am I suppose to find ...

### Game Theory

Under a mixed strategy, (A) a player moves sequentially. (B) player chooses among two or more pure strategies according to pre- specified probabilities. (C) the players may never reach a Nash equilibrium. (D) cheating is encouraged. (E) players are indifferent among their ...

### Fundamentals of Storytelling

I'm conducting a pre-interview with someone about the NHL's new partnership with Rogers Communications in Canada. The questions have to be related to the focus of this story, and I need to use my 5 W's (Who, What, When, Where, and Why) and How. I don't have a clear focus, and ...

### pre-cal

One campus of Houston community college has plans to construct a rectangular parking lot on land bordered on one side by a highway. there are 640 feet of fencing available to fence the sides. let x represent the length of each off the two parallel sides of fencing.

### Pre-Cal

A drone 125 ft high sights a landing pad with an angle of depression of 15 degrees. what is the horizontal distance between the drone and the landing pad? I tried all the methods set it up multiple ways, and I'm at a loss. My teacher said the answer is 466.5ft.. but how? ...

### Pre-Cal

[Note: This one... is super hard for me :( I really need help. please. I only have 2 hours left and I have no idea what I'm doing!! Suppose that cosx= -3/5 and x is in the third quadrant, and that siny= 2/9 and y is in the second quadrant. Find the exact values 1). sinx 2). ...

### pre algebra

Jonathon is starting a new job where he will earn $100 per week plus 15% commission on all sales. Write an equation and solve it to show what his sales were for a week if he earned $380.00? Round your answer to the nearest integer. Thank you! I think you start with 10 +.15s = 380

### Calculus

A calculus teacher's son likes to shoot arrows. He was wondering at what speed the arrow leaves the bow when it is released. So they went to a large deserted beach at the Great Salt Lake and shot the bow at an angle of 45 degrees. The arrow hit the ground at a distance of 600 ...

### pre-cal

A small ferris wheel: A student is riding a 20-m-diameter ferris wheel that is making three revolutions per minute. If there are eight equally spaced seats on the Ferris wheel, then what is the length of the arc between two adjacent seats?

### Pre-Algebra

1. Which polynomial does the model represent? (One big black square, two white rectangles, one black rectangle, one white cube, and three black cubes.) This is all I need. @Mrs. Sue @Reed

### 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 ...

### 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.

### 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

### 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.

### Calculus HELP

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

### calculus urgent

If you are given a graph of a function, how do you draw the derivative?

### Calculus Test Question!!!!!

Find the derivative if y=sec^-1 (x+3) Please any help.

### Calculus TEST!!!!

Find an equation for the tangent and normal to the curve x^2+y^2=9 at x=1

### Calculus Help!!!

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

### Calculus!!!

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

### Calculus

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

### Calculus

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

### Calculus

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

### 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?

### Calculus

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

### Calculus

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

### 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

### Calculus

What is the least positive integer that has exactly thirteen factors?

### Calculus

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

### Calculus

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

### 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.

### 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

### 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!

### Calculus

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

### Calculus please help

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

### 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)

### Calculus

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

### Calculus

Please help explain the following: Estimate the solution of the equation f(x)= -1

### Calculus

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

### Calculus

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

### Calculus

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

### HS Calculus

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

### calculus

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

### high school calculus

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

### Calculus

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

### calculus

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

### calculus

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

### calculus

Please find the Derivative of the function y =sec^2x + tan^2x

### HS Calculus/math

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

### calculus

find the points on the curve y=2x^3+3x^2-12x+1 where tangent is horizontal.

### HS Calculus/math

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

### calculus

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

### Calculus

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

### Calculus

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

### 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 ?

### Calculus

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

### 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!

### 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?

### 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???

### Calculus

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

### Calculus

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

### calculus

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

### CALCULUS

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

### calculus

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

### Algebra with calculus

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

### Calculus

Find all the intervals on which the function is concave upward: f(x)= 4x^2-x/x^4

### calculus i need help please

evaluate: integration of x^2 (square root of (1-2x^3))dx

### calculus

How would you integrate tan5xdx ? Thanks in advance. Can you use u substitution?

### Calculus II

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

### 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?

### Differential Calculus

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

### Differential Calculus

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

### Calculus

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

### calculus - please help

Simplify the expression: cos(2tan^(-1)x) any help is appreciated =D

### AP Calculus

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

### calculus

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

### Calculus

Find the particular solution of the differential equation y"(x) - y(x) = 1+e^x Please help.

### calculus - limits

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

### calculus

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