448 Answered Questions for the topic Precalculus Homework

05/14/18

#### Precalculus homework

divide the polynomial x^4+ 2x^3- 2x^2- 9 by x +3. Report your answer in standard form with a remainder.

05/14/18

#### Precalculus Homework question

write an equation for the porabola that satisfies the conditions  a focus at (-2,0), directrix at x= -4

05/01/18

#### Evaluate the Limit as x approaches -5. (-2/x+5)

Evaluate the Limit as x approaches -5. (-2/x+5)

04/23/18

#### How to find simplified rectangular equation?

Eliminate parameter t in the parametric equations below to find a simplified rectangular equation for the curve.    x = 2 sec t y = tan t

04/20/18

#### pre-calc math

Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k:   f(x)=3x^4+5x^3-10x^2+16; k=-1

04/17/18

#### I'm having problems understanig word problems in exponential functions. Would you help me with this problem please?

In 1985, the number of female athletes participating in Summer Olympics-Type Games was 500. In 1996, about 3600 participated in the summer Olympics in Atlanta. Assuming that P(0)=500 and that the... more

04/09/18

#### A complicated polynomial graph ;y=3e^x-2

I am studying for a pre-calc. final. I am stuck on the question y=3e^x-2. I have gotten the answer through desmos but am struggling to solve the problem on my own. Any help appreciated, thank you.

03/08/18

#### what csc if cot is 1

Find csc θ if cot θ is 1 Basic Trig Quiz  Precal / Geometry  Homework 12th Grade  Math/ College Math

03/04/18

#### PLEASE HELP!!! question: Two positive numbers have the property that one more than the first number plus four less than three times the second, totals to 100.

(i) If we call the first number x, and the second z, write an equation that relatesthese numbers.(ii) Use (i) to write an equation that gives the second in terms of the first.(iii) Use (ii) to... more

02/27/18

#### Find the magnitude and bearing (in degrees, 0 ∘ ≤ θ ≤ 90 ∘ ) of the vector < 3 , 4 > .

Find the magnitude and bearing (in degrees, 0 ∘ ≤ θ ≤ 90 ∘ ) of the vector < 3, 4 >. Give your answers to the nearest hundredth.  Magnitude ____ Bearing ____(write N, S, E or W)

02/20/18

#### if cos(x)= sqrt(2)/2 then what is x on the interval [0, 2pi)

if cos(x)= sqrt(2)/2 then what is x on the interval [0, 2pi)

02/11/18

#### Given f(x) = x2 + 3x + 9, find the following. a. f(0) (b). f(1) (c). f(−1) (d). f(−3) (e) .f(a) (f).f(x + h)

Given f(x) = x2 + 3x + 9, find the following.(a) f(0) (b) f(1) (c) f(−1) (d) f(−3) (e) f(a) (f) f(x + h)

02/07/18

#### Find the average rate of change of the function on the interval specified for real number h. j(x) = 2x3 on [1, 1 + h]

Any help would be greatly appreciated.

01/28/18

#### Find all of the real and imaginary zeros for the polynomial function. ​N(t)=4t^3−10t^2+4t+5

Find all of the real and imaginary zeros for the polynomial function.

01/25/18

Y=x4-3x2+1

01/24/18

#### Aaron runs at a constant speed of 10 feet per second. If Aaron is 48 feet from his front door when he starts running down a straight road toward school, how far

Aaron runs at a constant speed of 10 feet per second. If Aaron is 48 feet from his front door when he starts running down a straight road toward school, how far is Aaron from his front door when he... more

01/22/18

#### Among all rectangles that have a perimeter of 76 76 , find the dimensions of the one whose area is largest

Among all rectangles that have a perimeter of 76, find the dimensions of the one whose area is largest. Write your answers as fractions reduced to lowest terms.

12/23/17

#### Find the values that x2-y2 can take.

-3<x≤4   -4<y<-1   Find the values that x2-y2 can take.

12/08/17

#### Use an Addition or Subtraction Formula to simplify the equation.

sin(3θ) cos(θ) − cos(3θ) sin(θ) = 0   A.) sin(2ø)=0   B.) Find all solutions in the interval [0, 2π).   I just need help on part B. Thank you in advance!

12/03/17

#### Precalculus

The yearly depreciation of a certain machine is 55% of its value at the beginning of the year. If the original cost of the machine is \$20,000, what is its value after 4 years?

11/30/17

#### Use an Addition or Subtraction Formula to find the exact value of the expression

A.) cos(225º)   B.) tan (75º)

11/30/17

#### csc theata - 3 + 2sin theata = 0

precal I need help........

11/29/17

𝑓𝑥 =−2𝑥^2−8𝑥+1

11/29/17

#### Find the exact value

A. cos 11π/12   B. cos 195◦

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