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7 Answered Questions for the topic Precalculus Help

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A pot of coffee with a temperature of 100 degrees Celsius is set down in a room with a temperature of 20 degrees Celsius. The coffee cools to 50 degrees celsius in one hour.a. Find T(t), the... more
Precalculus Help Precalculus Word Problem


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A rectangular box without a top has a square base and a volume of 24 cubic inches. Let x be the length of the sides of the base. Write the surface area of the box as a function of the single... more
Precalculus Help Word Problem Math Word Problem


Precalculus word problem help

A certain right triangle has area 65 square inches. One leg of the triangle measures one inch less than the hypotenuse. Let x represent the length of the hypotenuse. Write the legs of the triangle... more
Precalculus Help Precalculus Math Help


Find an equation of the ellipse

Find an equation of the ellipse that has vertices (4, 2) & (-2, 2) and foci (3, 2) and (-1, 2)
Precalculus Help Precalculus Word Problem


Precalculus Word Problem - 3 by 3 or 2 by 3 function

A total of $5000 is invested at 2%, 3% and 4%. The amount invested at 4% equals the total amount invested at 2% and 3%. The total interest for one years is $145. If possible, find the amount... more
Precalculus Help Math Precalculus


Given some zeros of a polynomial function find all zeros of the function

P(x) = 2x^4 - x^3 - 27x^2 + 16x - 80, with zeros: 4, -4
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find the length s of the arc of a circle of a radius 48 meters subtended by the central angle 1/6 radian

I just have no idea how to solve this problem

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