2,195 Answered Questions for the topic Pre Calculus

Pre Calculus

09/09/20

PLEASE HELP ME!
Type the function that would shift the graph that’s diagonal starting at the top right and going straight through origin up 3 units
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09/08/20

Let a(t) = √2t+9 and b(t) = t^2 - 8, what is b*a(t)?
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09/08/20

If g(x) = 2x-3 and h(x) = x^2 + 7x + 10, find h*g(x).
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09/07/20

Let a(t) = √2t+9 and b(t) = t^2 - 8, what is b*a(t)?
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09/07/20

Let f(x) = 3x^2 + x-4 and g(x) = √x+7, what is (f+g)(2)?
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09/07/20

If g(x) = 2x-3 and h(x) = x^2 + 7x + 10, find hog(x).
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Pre Calculus

09/03/20

If the volume of a sphere is 400 pi in^3, what is it’s radius ?

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Pre Calculus Precalculus Algebra

09/02/20

Alice is riding a Ferris wheel which turns at a constant speed
Alice is riding a Ferris wheel which turns at a constant speed. The diameter of the wheel is 16 meters, and it is mounted at a height of 1 meter from the ground. Given that it took 5 seconds for... more
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Pre Calculus Precalculus Algebra

09/02/20

arboretum in psu
Let L = f(h) be the amount of water (in liters) a species of tree needs per week when it is h meters tall. A particular tree of this species in the PSU arboretum is h meters tall, and so it... more
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Pre Calculus

09/02/20

What values should be excluded from the domain of composite functions?

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Pre Calculus

09/02/20

Let f(x)=x^3+5x^2 and g(x)=7x^2−9. f/g is undefined when x=
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Pre Calculus

09/02/20

Write the complex number expression in standard form 3/3-12i
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Pre Calculus Calculus Precalculus

09/01/20

Given g(x)=7/x + 3 , evaluate and simplify: g(2+h)−g(2)/h=
Given g(x)=7/x+3, evaluate and simplify:g(2+h)−g(2) = h
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Pre Calculus Calculus Precalculus

09/01/20

What would the function f (x) = Cot x is undefined when X = v
I need help please. I believe the answer is 0 but I wanted to make sure.
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Pre Calculus

08/31/20

A rectangular plot of ground containing 432 ft is to be fenced within a large lot. Express the perimeter of the plot as a function of the width. What is the domain of this function?

I am honestly so confused on how to work this out.
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08/31/20

Find the values of the trigonometric functions of θ from the information given. cos(θ) = 3 13 , sin(θ) < 0
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Pre Calculus

08/28/20

Write an expression in terms of x that represents the number of feet Alexandra has walked toward John since they started walking.
John and Alexandra are 220 feet apart when they start walking toward one another. They are walking at the same speed, so whenever John travels some number of feet, Alexandra travels the same number... more
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Pre Calculus

08/27/20

Math question that I need help with

the equation of the line with slope -3 that goes through the point (-9,24) can be written in the form y=Mx+b, where
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Pre Calculus

08/27/20

Kristin rides a Ferris wheel for one full rotation.
Kristin rides a Ferris wheel for one full rotation. The radius of the Ferris wheel is 10 meters and the center of the Ferris wheel is 15 meters above the ground. The variable h represents Kristin's... more
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Pre Calculus

08/26/20

Determine whether the formula describes y as a function of x. Explain your reasoning. y = -3x^2 - 7x - 6
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08/25/20

Find the equation of the parabola, with axis of symmetry of the y-axis, which passes through the points 𝐴(−2,1) and 𝐵(4, −5).
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Pre Calculus Precalculus Pre Calculus

08/25/20

Find the equation of the parabola, with axis of symmetry of the y-axis, which passes through the points 𝐴(−2,1) and 𝐵(4, −5).
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Pre Calculus Precalculus Pre Calculus

08/24/20

Angle of Depression to ship word problem
From the top of a 180-ft lighthouse, the angle of depression to a ship in the ocean is 26°. How far is the ship from the base of the lighthouse? (Round your answer to the nearest foot.)
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Pre Calculus

08/20/20

Word Problem (pre Calc)
A frustrated office worker throws his laptop out of his business’s high-rise office building. The height, h, in meters of the laptop above the ground at t seconds can be modelled by... more
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Pre Calculus

08/20/20

Pre Calc Word Problem

Consider the various types of functions that can be used for mathematical models, which types of function(s) could be used to describe a situation in which the number of individuals in an... more
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