1,642 Answered Questions for the topic Math Help For College

Math Help For College Math Equations Inverse Functions

12/02/13

Use the definition of inverses

Use the definition of inverses to determine whether f(x)=(5x-3)/(2x+1) and g(x)=(x+3)/(5-2x) are inverses
Math Help For College

11/30/13

approximate each real zero as a decimal to the nearest tenth

Given f(x)=6x^4-7x^3-23x^2+14x+3, approximate each real zero as a decimal to the nearest tenth.
Math Help For College Word Problem Math Help Math Question

11/30/13

a body falling freely

For a body falling freely from rest (neglecting air resistance), the distance the body falls varies directly as the square of the time. If an object is dropped from a tower 400 ft high and hits the... more
Math Help For College Word Problem Math Help Math Problem

11/30/13

the weight of an object............

The weight of an object varies inversely as the square of its distance from the center of the Earth. If an object at sea level (3978 mi from the center of the earth) weighs 220 lb, find its weight... more
Math Help For College

11/27/13

Use the boundedness theorem

Use the boundedness theorem to show that f(x)=x^5-2x^3-x+2 has no real zero less than -3 and no real zero greater than 3
Math Help For College Math Question Math Equations

11/25/13

please help

Explain how the graph of f(x)=(-2)/(x-3)^2 can be obtained from the graph of y=1/x^2 by means of translations, compressions, expansions, or reflections
Math Help For College

11/24/13

perform indicated operation. Write in lowest term

1. x^2-2x-35/x^2+10x+25*x^2+4x-5/x^2-8x+7 2. 16-x^2/x^3+64*x^2/x^2-2x-8 divded by x^2+4/x^2-4x+16 3. 3x^2-6x-105/x^2-3x-28 divided by x+5/4x+16 4. 4/x-3-2/x+1 5. 3/x^2-4x+4-2/x^2-4 6.... more
Math Help For College

11/24/13

write each rational expression in the lowest terms:

1. 100a^3bc^2/40a4c 2. 2x^2-2x-40/x^2-25 3. xy-4y-3x+12/x^2-7x+12
Math Help For College

11/24/13

f(x)=x-7/x^2-4x-12

Find the domain of the rational
Math Help For College

11/22/13

im stuck on this one

develop your own real world equation using words for the variables. Then, translate your equation into polynomials and share both versions of the equation
Math Help For College

11/19/13

Find all complex zeros

Find all the complex zeros of f(x)=5x^4-4x^3+19x^2-16x-4. Give exact values
Math Help For College

11/19/13

Descartes' rule

Use Descartes' rule of signs to determine the possible number of positive real zeros and the negative real zeros for f(x)=x^4-9x^2-6x+4
Math Help For College

11/19/13

synthetic division

Use synthetic division to decide whether k=2, k=-1, or k=0 are zeros off(x)=x^4-6x^3+x^2+24x-20. If not, give the value of f(k)
Math Help For College

11/19/13

Find height of a projectile

Height of a Projectile. A stone is thrown directly upward from a height of 30ft with an initial velocity of 60ft/sec. The height of the stone t seconds after it has been thrown is given by the... more
Math Help For College

11/13/13

What is the equation of a line with slope -1/2 and passing through (-4, 1). How do I write it in slope-intercept form.

How can you tell which formula(s) to use on the attached problem?   Slope formula m =y2-y1_____x2-x1point-slope formulay-y1 = m(x-x1)   slope-intercept formulay = mx +b
Math Help For College

11/02/13

I need help, once I see how this is worked I can do the rest with no problems

I have the problem 4 1/4         x _____  = _____ 5 1/5        6 1/6     I need help working this problem
Math Help For College

10/25/13

-36 mutiplied by -5/24=

  what is the steps and answer to -36 multiplied by -5/24=?
Math Help For College Algebra Algebra Question Function

10/16/13

Evaluate the function at the indicated values.

Evaluate the function at the indicated values.   1.) g(x)=3x^2-4 a.) g(x^2 )b.) g(3x^2-4)c.) g(x-h)d.) g(x)-g(h)e.) (g(x+h)-g(x))/h, h ≠0 2.) G(x)=√(4-x) a.) G(4-x)b.) G(4-x^2 )c.) G(4-x^4 )d.)... more
Math Help For College Algebra Algebra Question Functions

10/16/13

Define the following functions.

1. f(x)= |x|; g(x)= |x-3| a.) f+gb.) f-gc.) f⋅gd.) f/ge.) g/f   2. f(x)=1/(x+1); g(x)=x/(x-2) a.) f+gb.) f-gc.) f⋅gd.) f/ge.) g/f   3. f(x)=x^2; g(x)=1/√x a.) f+gb.) f-gc.) f⋅g d.) f/ge.) g/f
Math Help For College Algebra Algebra Question Functions

10/16/13

Solve each item completely.

I. Solve each item completely.   1. Shipping charges are often based on a formula that offers a lower charge per pound as the size of the shipment is increased. Suppose shipping charges are as... more
Math Help For College Graph Math Help Math Question

10/13/13

Graph the following equation

Graph the following equation and show all work.    y=-4x+1

10/13/13

Find an equation of a line

Find an equation of the line. Write the equation using function notation. (Show all work)   Through (2,-5);perpendicular to 9y=x-18
Math Help For College Equations Math Help

10/13/13

Solve the equation for m

Solve the equation for m and show all work    (m-9)/4 - (4m-14)/7 =2
Math Help For College Equations Algebra Help Math Help

10/13/13

Solve the equation for t

Solve the equation for t and show all work    (4t2)/5=t/5+21/10
Math Help For College Equations Math Help

10/13/13

Solve the equation

Solve the equation for x and show all work  (x2+2)/(3x2-5x+2)+-3/(x-1)=-5/(3x-2)

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