4,322 Answered Questions for the topic College Algebra

College Algebra Math Trigonometry Algebra

03/27/20

Trigonometry: What is the polar representation of z = – 4i?

What is the polar representation of z = – 4i?1) –4cis (–π/4)2) –4cis (π/4)3) 4cis (–π/2)4) 4cis (π)5) None of these
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College Algebra

03/26/20

Can you help me solve this question?
A ball is thrown vertically upward. After t seconds, its height h  (in feet) is given by the function h(t)=80t-16t2. What is the maximum height that the ball will reach?Do not round your answer
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College Algebra

03/26/20

Product of two functions
Suppose that the functions g and h are defined for all real numbers x as follows. g(x)=x+1h(x)=2x2Write the expressions for (g h)(x) and (g-h)(x) and evaluate (g+h)(−2).(g h)(x)=(g-h)(x)=(g+h)(-2)=
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College Algebra

03/26/20

Composition of two functions
Suppose that the following functions q and r are defined as follows. q(x)=-x-4r(x)=4x+5Find the following.(q r)(-4)=(r q)(-4)=
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College Algebra Math Science Physics

03/25/20

Physics forces problem

A block of mass m1 is attached to a cord of length L1, which is fixed at one end (in the center of the circular trajectory). The block moves in a horizontal circle on a frictionless table. A... more
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College Algebra Math Quadratic Formula

03/24/20

College Algebra Math Quadratic formula

Can someone please work this problem out for me so i can compare my answer with yours and also see where i messed up at with my calculations. Thank you The number of board feet in a 16 foot long... more
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03/24/20

College Algebra math Hypotenuse of a right triangle

The hypotenuse of right triangle is 100 centimeters long. The difference between the other two sides is 68 centimeters. Find the missing sides. Use exact values.shorter leg: ... more
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College Algebra Math

03/24/20

College Algebra Math

The number of board feet in a 16 foot long tree is approximated by the model y=0.77x2−1.32x−9.31 where y is the number of feet and x is the diameter of the log.How many board feet are in a log with... more
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College Algebra

03/23/20

Exponent meaning

What does the exponent mean in (-64)1/2? And what does the exponent stand for in (35x-1y-2/over 7x4y3?
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College Algebra

03/23/20

Exponents and parentheses

If I removed the parentheses from (-64)1/2 would I get the same answer if I was to keep the parentheses? 
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College Algebra Math Algebra 2 Algebra

03/23/20

Simple Algebra Interest
Last year Kareem had $20,000 to invest. He invested some of it in an account that paid 8% simple interest per year, and he invested the rest of it in an account that paid 7% simple interest per... more
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College Algebra

03/22/20

a question on my college math homework
A suspension bridge with weight uniformly distributed along its length has twin towers that extend 85 meters above the road surface and are 1600 meters apart. The cables are parabolic in shape and... more
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College Algebra

03/21/20

Let f(x)=3 square root of x. If g(x) shifted 5 units down and left 2 units, write a formula for g(x)
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College Algebra Word Problem

03/20/20

College algebra

A certain electronics manufacturer found that the average cost C to produce x DVD/Blu- ray players can be found using the equation C=0.04x2−5x+600. What is the minimum average cost per machine and... more
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College Algebra Algebra 2 Right Triangle

03/20/20

College Algebra Right Triangle Question

The hypotenuse of a right triangle is 10 units long. Find the other two sides if the perimeter of the triangle is 24 units. Separate the numbers by a comma.help please
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College Algebra

03/20/20

What's the solution to this problem? I have been struggling with it for quite a while.
A chemical company makes two brands of antifreeze. The first brand is 70% pure antifreeze, and the second brand is 85% pure antifreeze. In order to obtain 90 gallons of a mixture that... more
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College Algebra

03/20/20

College Algebra Polynomial Functions
Describe the long run behavior of f(n)=3(n−2)^3(n+2)^2(n+1)^2As n→−∞, f(n)As n→∞, f(n)
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College Algebra

03/20/20

College Algebra Polynomial Functions
Given the function g(t)=(t−3)(t+2)(t−5)its g-intercept isits t-intercepts are
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College Algebra

03/20/20

College Algebra Polynomial Functions
The polynomial of degree 3, P(x), has a root of multiplicity 2 at x=5 and a root of multiplicity 1 at x=−3. The y-intercept is y=−45. Find a formula for P(x).
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College Algebra Algebra 2

03/19/20

Find a possible formula for the quadratic function whose graph has a vertex (6,3) and y-intercept -8.
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College Algebra

03/18/20

The revenue function for a bicycle shop is given by R(x)=x⋅p(x) dollars where x is the number of units sold and p(x)=700−0.5x is the unit price. Find the maximum revenue.
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College Algebra Algebra 2

03/18/20

College Algebra Homework

A gardener has 440 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river and so it does not need any fencing.What dimensions would guarantee that the... more
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College Algebra Quadratic Modeling

03/18/20

College Algebra quadratic modeling

A rocket is fired upward from some initial distance above the ground. Its height (in feet), h, above the ground t seconds after it is fired is given by h(t)=−16t2+64t+512.What is the rocket's... more
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College Algebra

03/18/20

college Algebra constructing a polynomial (see description below)
Not understanding how they are getting their answer -4x3 +32x2 -84x+80constructing a polynomial Third-degree, with zeros of 2-i,2+i, and 4, and a leading coefficient of -4.
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College Algebra Algebra 2

03/18/20

Solve for x but b does not equal 0
A/x+x/b=c Solve for x but b does not equal 0
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