1,063 Answered Questions for the topic Pre-Calculus

Pre Calculus Math Precalculus

09/16/20

Find the average rate of change of f(x)=x^3−9x+6 over the following intervals:
Find the average rate of change of f(x)=x^3−9x+6 over the following intervals:(a) = From -6 to -4(b) = From -2 to 3(c) = From 3 to 9
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Pre Calculus Math Calculus Precalculus

09/14/20

If f(x) = x^2 + 3 x - 5 and g(x) = 2 x + 3, what is the value of g (f(3))?
a.  29             b.  23              c.  9              d.  103              e.  18
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Pre Calculus Math Calculus Precalculus

09/14/20

Use the data tables for f(x) and g(x) above to answer questions 6 and 7 below.
X         -2         0         1         5         8         11         15f(x)       2         3         7         10       8         4           1X         -3         1         3         6        ... more
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Pre Calculus Math Calculus Precalculus

09/14/20

Which of the following statements about one to one functions is false?
a. The graph passes the horizontal line test b. Every output comes from one and only one input c. The function x^2 is a one to one function d. The graph passes the vertical line test
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09/09/20

If tan(theta)= -1, sin (theta) < 0, and theta is inbetween 0 and 360, then determine the exact value of theta
I understand how to do the question without the "sin0<0". Also I tried to answer the question and I got 0=45 and 0=135.
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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 Math Precalculus

09/07/20

If f(x) = 3x^2 - x-5 and g(x) = x^2 - 8
a. What is (f-g)(x)? b. Evaluate (f*g)(2)
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Pre Calculus Math

09/04/20

general equation of the parabola with vertex (-4,3), with vertical axis of symmetry and passes through (0,-1)
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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

08/25/20

Two cyclists, 30 mi apart, start riding towards each other at the same time. One cycles twice as fast as the other. If they meet 1 hr later, at what average speed is each cyclist traveling?
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Pre Calculus Math Precalculus Maths

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 Precalculus Mathematics

08/24/20

Height of cloud cover math word problem

To measure the height of the cloud cover at an airport, a worker shines a spotlight upward at an angle 75° from the horizontal. An observer D = 530 m away measures the angle of elevation to the... more
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Pre Calculus Math Calculus

08/12/20

NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t^2+106t+157.

 NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t^2+106t+157. A) How high above sea level is the rocket a the moment of... more
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Pre Calculus Math Geometry Precalculus

07/24/20

A telephone mast 1,400 yards from an observer subtends an angle of 3.5°. Use the arc length formula to estimate the height of telephone mast.
The height of the telephone mast is approximately how many yards?
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Pre Calculus Precalculus Pre Calculus

07/23/20

Write the cubic polynomial function f(x) in expanded form with zeros −4, −2, and 1, given that f(−1)=−24 .
Write the cubic polynomial function f(x) in expanded form with zeros-4,-2 and 1, given that f(-1) =- 24.f(x)=
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Pre Calculus Precalculus Pre Calculus

07/23/20

Find (w∘g)(-3) for w(x)=10x^2-7x+2 and g(x)=7x-10.

Find (w∘g)(-3) for w(x)=10x^2-7x+2 and g(x)=7x-10. (w∘g)(-3)
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Pre Calculus Precalculus Pre Calculus

07/23/20

Given s(z)=z^(2)-11z+24 and w(z)=z-3, find (sw)(z)
Given s(z)=z^(2)-11z+24 and w(z)=z-3, find (sw)(z)(s/w)(z)=
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Pre Calculus Precalculus Pre Calculus

07/23/20

Given s(z)=11+2z^(2) and w(z)=3z^(2)-11z+2, find (s+w)(z).
Given s(z)=11+2z^(2) and w(z)=3z^(2)-11z+2, find (s+w)(z).(s+w)(z)=
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Pre Calculus Precalculus Pre Calculus

07/23/20

Line l passes through point (12,2) and line p is the graph of 4x-7y=22 . If l⊥p , what is the equation of l ?
Line l passes through point (12,2) and line p is the graph of 4x-7y=22 .If l⊥p , what is the equation of l ?
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