2,195 Answered Questions for the topic Pre Calculus

Pre Calculus Algebra 2

10/13/19

Solve the equation algebraically. X(2x+3)=9
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Pre Calculus Calculus

10/11/19

help with math hw please?
suppose hot chocoalte is poured at 70 degrees celcius and placed in a room at 25 degrees celcius. the hot chocolate cools by 10 degrees after one hour. how long after pouring the hot chocolate will... more
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Pre Calculus

10/07/19

Pre calculus word problem
After declining between 1940 and 1980, the number of multigenerational households has been increasing since 1980. The function h(x)= 0.012x^2-0.573x+35.722 can be used to estimate the number of... more
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Pre Calculus

10/07/19

Pre calculus word problem

A ball is thrown directly upward from a height of 7ft with an initial velocity of 24ft/sec the function s(t)= -16t^2 +24t+7 gives the height of the ball in feet t seconds after it has been thrown.... more
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Pre Calculus

10/07/19

Pre calculus word problem

The sum of the base and the height of the triangle is 18cm. Find the dimensions for which the area is a maximum. The triangle with maximum area has a height of _ cm? And a base of _ cm?
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Pre Calculus Doubling Time

10/06/19

Find the doubling time for a city whose population is growing by 17% per year

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Pre Calculus Algebra 2

10/04/19

Find f(g(x)) and g(f(x)).State the domain
1). f(x)=3x+2; g(x)=x-12). f(x)=1/x-1; g(x)=√x3). f(x)=x^2-2; g(x)=√x+14). f(x)=1/x+1; g(x)=1/x-1
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Pre Calculus Algebra 2

10/04/19

Find (f of g)(3) and (g of f)(-2)

1). f(x)=2x-3; g(x)=x+12). f(x)=x/x+1; g(x)=9-x^2
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Pre Calculus

09/29/19

Per calc homework
The perimeter of a rectangle is 500. If the height of the rectangle is x and the width is y, what is the area of the rectangle in terms of x?
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Pre Calculus Algebra 2

09/27/19

Find the domain. f(x)=√9-x^2/x-1
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Pre Calculus

09/26/19

On a bicycle, Carissa rides for 2 hours and is 24 miles from her house. After riding for 10 hours, she is 112 miles away.
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Pre Calculus

09/25/19

what the equation for revnue write the equation for total cost find the break even quanity ?
A Company manufactures and sells bookcases. The selling price is $54.90 per bookcase. The total cost function is linear and cost amount to $50,000 for 2000 books and $32,120 for 800 book cases   a.... more
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Pre Calculus Math Algebra 1 Algebra 2

09/24/19

determine whether the pair of lines are parallel, perpendicular, or neither
6x=7y=1-30x=35y=1
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Pre Calculus

09/23/19

Having trouble with a pre calc problem.
Ive gotten most of the way through it. its f(x)=x^(4)-2x^(3)+x^(2). Im trying to identify the zeros, and cant seem to get there. ive worked it down to (x^(2))(x^(2)-2x+1) and need to find 2 values... more
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Pre Calculus

09/23/19

on ramps pre cal

if a function f(x) has values f(4)=6 and f(8)=18, use what you have learned about function patterns to find f(16)=if f(x) is:a) linear function: f(16)=b) power function: f(16)=c) exponential... more
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Pre Calculus Algebra 2

09/22/19

Find the domain. F(x)=(x+2)(x-2)/x^2+4
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Pre Calculus Math Algebra 2

09/22/19

Solve the equation algebraically. 4√x+x=1
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Pre Calculus Algebra 2

09/22/19

Solve the equation algebraically. 6√x+x=3
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Pre Calculus

09/21/19

Word problem pre calc
Curt can be paid in one of two ways for the furniture he sells plan A: salary of $450 per month plus a commission of %10 of sales plan B: salary of $750 per month plus a commission of %15 sales in... more
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Pre Calculus

09/21/19

Word problem calculus

A truck enters a highway driving 60 mph a car enters the highway at the same place 7 minutes later and drives 68 mph in the same direction from the time the car enters the highway how long will it... more
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Pre Calculus

09/15/19

What is the equation that passes through the point (1/2,-2/7) and is perpendicular to the line 3x-6y=1
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Pre Calculus Precalculus Pre Calculus

09/12/19

what is (4+3i)^4
I got -527+336i but I can't figure out how to get that answer.
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Pre Calculus Precalculus Honors

09/11/19

if f (x) = mx + k find, f (x + k) - (f) x/k
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Pre Calculus Math Algebra 1 Calculus

09/11/19

Find 2 functions f and g such that h(x)=[fog](x).

Neither function may be the identity function f(x)=x.h(x)=√(4x+2) +7Can someone give me a step by step explanation because it is kind of confusing and complex to understand, thank you
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Pre Calculus Trigonometry Perimeter

09/10/19

Pre Calculus 11 - Trigonometry
What is the perimeter of a regular heptagon inscribed in a circle of radius 7? Round your answer to 2 decimal places.
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