15,254 Answered Questions for the topic precalculus

Precalculus

09/09/23

Use an inverse matrix to solve for x and y
[[5,-4],[4,3]]*[[x],[y]]=[[-6],[-6]]
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Precalculus Calculus

09/08/23

Model this note with the sine function, assuming that the amplitude is 1 and the phase shift is 0. Write the function in terms of x.
Sounds are how we perceive pressure waves in the air. The note F-sharp, directly below the note 'middle C', is a sound wave with an ordinary frequency* f=220 Hertz or cycles/sec. Model this note... more
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Precalculus Calculus

09/08/23

What is the population of rabbits in September?
A population of rabbits is at its lowest in January (t=0) and oscillates 21 above and below an average of 149 during the year.What is the population of rabbits in September?
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Precalculus Math Algebra 1 Algebra 2

09/07/23

Given the function f, find -f(a)
-f(a) = 4x-5 / 9x+2
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Precalculus

09/07/23

List transformations from this equation f(x)=-5(3/4x)^2+8
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Precalculus

09/06/23

Write an equation for the function that is described by the following characteristics: the shape of g(x)=[[x]], but reflected in the y-axis, moved four units down
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Precalculus

09/06/23

Write an equation for the function that is described by the following characteristics. The shape of f(x) = x^2 but moved nine units down, four units to the left, and then reflected over the x-axis.
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Precalculus

09/03/23

Need help with finding a function
I'm trying to find a function with a Horizontal asymptote of -6, Vertical asymptotes of -1 and 3. It is supposed to have x intercepts of (-3,0) and (1,0). When I was using the asymptotes to find... more
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Precalculus Math Calculus

09/02/23

Answer whether if its polynomial or non-polynomial
g(x) = 6√xh(x) = -x2 + 6x6u(x) = 1/x5 - 8x9 + 5v(x) = 2x(x-1)2(x+3)
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Precalculus

09/01/23

Pre calculus 12 grade
Draw graph f(x)=(x+2)^3(1-x), find zeros and their multiplicity.
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Precalculus

09/01/23

Pre calculus, 12 grade
Draw the graph f(x)= (x+2)^3(x-1), find zero and their multiplicity.
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Precalculus

08/31/23

Express the cost C in terms of x
An open top box with a square base of length x and height y is to be constructed so that its volume is V=1860cm3. If the cost of the material for the base of the box is $0.46 per square centimeter... more
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Precalculus

08/31/23

Express the surface area S as a function of x
A box is to be created from a piece of cardboard measuring 20inches×17inches by cutting out identical squares with side lengths of x from each corner and folding up the sides.Express the... more
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Precalculus Math Calculus

08/30/23

Simplify your answer as much as possible.
(x+6 / 2x-10) - (x+5 / 3x - 5)I separated them with parenthesis to avoid confusion.
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Precalculus

08/29/23

Find the Holes in the Asymptotes
f(x)= x/25-x^2I need help determining the holes for this function. They need to be in an ordered pair.
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Precalculus Math

08/28/23

Help with Graph Transformations
 (a) The graph of y=f(x+4) is the graph of y=f(x) shifted horizontally ? and shifted vertically ?(b) The graph of y=f(x)+1 is the graph of y=f(x) shifted horizontally ? and shifted vertically ?(c)... more
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Precalculus Calculus

08/28/23

How many minutes of the ride are spent higher than 54 meters above the ground?
 A Ferris wheel is boarding platform is 5 meters above the ground, has a diameter of 76 meters, and rotates once every 6 minutes.How many minutes of the ride are spent higher than 54 meters above... more
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Precalculus Calculus

08/27/23

What is the population of rabbits in June?
A population of rabbits is at its lowest in January (t=0) and oscillates 15 above and below an average of 147 during the year.What is the population of rabbits in June?
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Precalculus Calculus

08/27/23

Assuming t is the number of hours since midnight, find an equation for the temperature, T, in terms of t.
The temperature during the day can be modeled by a sinusoid. Answer the following question given that the low temperature of 17 degrees occurs at 3 AM and the high temperature for the day is 45... more
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Precalculus Calculus

08/27/23

How many minutes of the ride are spent higher than 23 meters above the ground? Round to two decimal places.
The boarding platform of a Ferris wheel is 5 meters above the ground and the Ferris wheel is 26 meters in diameter and spins once every 9 minutes.How many minutes of the ride are spent higher than... more
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Precalculus

08/27/23

Evaluating the Roots

Suppose f(x)=x^4(6−8x^9).1) The roots are ?2) As x→∞, f(x)→ ?3) As x→ −∞, f(x)→ ?
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Precalculus

08/27/23

Checking End Behavior

Determine the end behavior of the following polynomial function:f(x)= −3/10 x^13(x−10)^2(x−4)Is the leading term of the polynomial -(3x^16)/(10)?Is the degree 16?Is the leading coefficient -(3)/(10)
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Precalculus

08/27/23

Graph Transformations

 (a) The graph of y=f(x+4) is the graph of y=f(x) shifted horizontally ? and shifted vertically ?(b) The graph of y=f(x)+1 is the graph of y=f(x) shifted horizontally ? and shifted... more
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Precalculus

08/27/23

One-to-One Function
The function f(x)=(x+4)^2 is not one-to-one. Choose a largest possible domain containing the number 100 so that the function restricted to the domain is one-to-one. The largest possible domain is... more
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Precalculus Calculus

08/27/23

These 3 points are on a parabola defining the edge of a ski: (-4,1) (-2,0.94) (0,1)
These 3 points are on a parabola defining the edge of a ski:(-4,1)(-2,0.94)(0,1)1. Use the x- and y-values of 1 to build a linear equation with 3 variables: A, B, and C. Repeat this process with... more
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