454 Answered Questions for the topic Precalculus Homework

Precalculus Homework Math Precalculus Math Help

06/07/18

Evaluate this:

Evaluate: cos 5pi/4 + cos (-pi/6)
Precalculus Homework Math Precalculus Math Help

06/06/18

State the range

If f(x) = 3x+2 / x^2+6x+9, State the range of f^-1(x).
Precalculus Homework Math Precalculus Pre Calculus

06/06/18

Find the coordinates of the hole:

Find the coordinates of the hole of  f(x) = x+1/x^2-4x-5   Show all work.
Precalculus Homework Precalculus Trigonometry Pre Calculus

05/15/18

cot/2= squareroot 3/3

cot   √3 —  = — 2       3
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.
Precalculus Homework

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
Precalculus Homework

05/01/18

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

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

05/01/18

find the balance in an account at the end of 14 years if $5000 is invested at an interest rate of 9% that is conpunded continuously

I can not figure out the answer to this question. 
Precalculus Homework

04/30/18

If tan theta equals 10/7 and if cos theta is less than 0 then whats sec theta, cos theta and sin theta

Need help fast !!
Precalculus Homework

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
Precalculus Homework

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
Precalculus Homework Calculus Polynomials Graphing

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.
Precalculus Homework

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 
Precalculus Homework Math Calculus Pre Calculus

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
Precalculus Homework Math

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)
Precalculus Homework

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)
Precalculus Homework

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)
Precalculus Homework

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.
Precalculus Homework

01/25/18

Determine if the equation in 2 variables has y-axis symmetry or origin symmetry. Justify.

Y=x4-3x2+1
Precalculus Homework Precalculus Pre Calculus

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
Precalculus Homework

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.
Precalculus Homework

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. 
Precalculus Homework Precalculus

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!
Precalculus Homework

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?

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