2,195 Answered Questions for the topic Pre Calculus

Pre Calculus Math Mathematics

02/12/19

Find a polynomial function with the zeros -2 ​(multiplicity 2​) and 2 ​(multiplicity 2​), whose graph passes through the point (-3,100)
Find a polynomial function with the zeros -2 ​(multiplicity 2​) and 2 ​(multiplicity 2​), whose graph passes through the point (-3,100)
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Pre Calculus

02/10/19

cosθ = 0.4049 is the problem I cant figure out
Find theta θ for 0 degrees° less than or equals θ less than 360 degrees°.cosθ=0.4049
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Pre Calculus

02/10/19

How do i solve for x in x=kx+8k
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Pre Calculus

02/09/19

x^2-36 what is the SMALLEST x intercept
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Pre Calculus Math

02/04/19

find the value for sin (x/2) if the following conditions hold: cos(x) =-1/3 and x is in quadrant 2
find the value for sin (x/2) if the following conditions hold: cos(x) =-1/3 and x is in quadrant 2
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Pre Calculus

02/01/19

Find the dimensions of the box described. The length is 3 inches more than the width, which is 4 inches more than the height. The volume is 352 cubic inches.
i am just so lost and i have no idea what to do. i have tried to plug it into the formula V=L*W*H but i cant seem to get an answer
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Pre Calculus Math

01/31/19

Forty feet away for the auditorium, the angle of elevation to the top of the auditorium is 21 degrees. Calculate the height of the auditorium from the given information.
Please include a sketch if possible!!
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Pre Calculus Math

01/31/19

pre cal homework please help im so confused

to find the heigth of a hill, two angles of elevation are measured from ground level. The angle of elevation from point b to the top is 63 degrees. After the suveyor moves 140 ft directly away from... more
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Pre Calculus Math

01/31/19

pre- ap pre calculus law of sines question below please help im so confused

If a pole has one 62-foot guy wire that makes an angle of 39 with the ground, and a second 50- foot guy wire is available for the opposite side of the pole, what angle measure will the second wire... more
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Pre Calculus Derivatives

01/30/19

Create a function that has a derivative of f(x) = 2x + 1 at a given input value of your choice.
I need this ASAP!!! Please show work so I can learn the material
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Pre Calculus

01/29/19

Pre calc HELP PLEASE!!!!!!!!!!
Let f(x) = mx + b be the family of all linear functions. Find all values of m and b such that f = f −1 . That is, find all linear functions that are their own inverses.
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Pre Calculus

01/27/19

Find an nth-degree polynomial function with real coefficients satisfying the given conditions.

If you are using a graphing utility, use it to graph the function and verify the real zeros and the given function value n=3 4 and 5i are zerosf(-1)=-260
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Pre Calculus

01/25/19

How do you verify this Identity? Cot (x - pi / 2) = - tan x
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Pre Calculus

01/24/19

If f(x)=3x-1 and g(x)=2x+1 find (fog)(-1)

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Pre Calculus

01/21/19

Write an equation in standard form for the ellipse with center (0, 0), co-vertex (0, 25) and focus (-8, 0)
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Pre Calculus Calculus Functions

01/16/19

Please help!! secant question
a) Find the slope of the secant to the graph of f(x)=x^2-4x-30 between the points where x=-2 and x=1b) Determine an algebraic expression that represents the slope of any secant line that passes... more
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01/12/19

Find f^-1(4) of f(x) = x^9 + x^3 + x + 1
Find f-1(4) of f(x) = x9 + x3 + x + 1The only way I know how to do this is by using a graphing calculator. I don't know how to solve it by hand though. If anyone knows what I should do, please let... more
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Pre Calculus

01/08/19

the half-life of carbon-14 is 5700 years. Find the age to the nearest year of a sample in which 16% of the radioactive nuclie originally present have decayed.
I would like the answer and steps to how to get that answer!
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Pre Calculus

01/05/19

Vector u has its initial point at (14,-6) and its terminal point at (-4,7). Write the componemt form of u and find its magnitude.
U= <___ , ___> and ||u|| = ___ units.
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Pre Calculus Precalculus Pre Calculus

12/20/18

A sign on a roadway at the top of a mountain indicates that for the next 4 miles the grade is 10.5
A sign on a roadway at the top of a mountain indicates that for the next 4 miles the grade is 10.5°. Find the change in elevation for a car descending the mountain. show work
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Pre Calculus

12/16/18

need help understanding this pre calc question

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Pre Calculus Precalculus

12/08/18

Find a polynomial function of degree 4 with -2 as a zero of multiplicity 3 and 0 as a zero of multiplicity 1
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Pre Calculus

12/07/18

Radium-221 has a half-life of 30 sec. How long will it take for 76% of a sample to decay?
Radium-221 has a half-life of 30 sec. How long will it take for 76% of a sample to decay?
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Pre Calculus

12/07/18

If log50=1.699, then what is the value of log100 50
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Pre Calculus

12/05/18

What is the vertical asymptote of f(x)= 2 / x^2 - 2x -3 ?
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