15,254 Answered Questions for the topic precalculus

Precalculus

09/19/22

Find functions f and g such that F = f ∘ g.

Find functions f and g such that F = f ∘ g.  (Use non-identity functions for f(x)  and g(x).)
Precalculus Trigonometry

09/19/22

(Delta) is an angle in standard position whose terminal arm is in quadrant 4 and cos (delta) = 3 / square root (13). Find src (delta)

A) square root (13) / 3B) - square root (13) / 2C) 2 / square root (13)D) - 4 / square root (13)
Precalculus

09/19/22

Find a function

If g(x) = 2x + 1 and h(x) = 4x2 + 4x + 8, find a function f such that f ∘ g = h.2.If f(x) = 5x + 6  and h(x) = 5x2 + 5x + 1, find a function g such that f ∘ g = h.
Precalculus

09/19/22

help out with some questions please

the price p (in dollars) and the quantity x sold of a certain product obey the demand equation x=-15/2p+300 for 0 < p less than or equal to 40 a how many units are sold if the price is 20$b what... more
Precalculus

09/19/22

Find a formula for the described function.

A rectangle has perimeter 16 m. Express the area A (in m2) of the rectangle as a function of the length, L, of one of its sides. then state the domain of A. (Assume the length of the rectangle... more
Precalculus Algebra 2

09/18/22

Raindrops falling on the surface of a lake create circular ripples. The radius of the ripple (in inches) increases as a function of time (minutes) according to r(t) = 25t + 2.

1. What is the area of the ripples 2 minutes after the raindrops hit the lake surface? 2. Solve A(r(t)) = 5000 and interpret its meaning.
Precalculus Algebra 2

09/18/22

The rate at which crickets chirp, R (unit: number of chirps per minute), depends on the temperature of their environment, F (unit: degrees Fahrenheit).

For a particular cricket species, this relationship can be modeled by the function R(F) = 4F - 160. The ambient temperature F is 0 ≤ t ≤ 18 and F(t) = 0.3t^2 - 5.4t + 71.8, where t is the number of... more
Precalculus Algebra 2

09/18/22

Im very confused with these math problems if someone can help

Consider the following function.f(x) = x4 + 2,    x ≥ 0Find the inverse function f −1.f −1(x) = State the domain and range of f.   Domain:Range:State the domain and range of f −1. (Enter... more
Precalculus Algebra 2

09/18/22

Please if someone can help with this question

Find the inverse function of f algebraically.f(x) = 7xf −1(x)Use a graphing utility to graph both f −1 and f in the same viewing window. Describe the relationship between the graphs.Are The graphs... more
Precalculus Algebra 2

09/18/22

Alegbra/precalc question

Determine whether the function has an inverse function f(x)=x^6Does it have an inverse or no . And if not why
Precalculus

09/18/22

please help with home work

the point p is on the graph f(x)=x^2+2x+5 determine the distance from the point (-3,-2) to the point P as a function of x
Precalculus

09/18/22

the point p is on the graph f(x)=x^2+2x+5 determine the distance from the point (-3,-2) to the point P as a function of x

the point p is on the graph f(x)=x^2+2x+5 determine the distance from the point (-3,-2) to the point P as a function of x
Precalculus Math Calculus Physics

09/18/22

stuck on math question

The surface x^2 + y^2 = 7 is a circular cylinder.What is an equation for the cross section at y = −7 using x and z.What is an equation for the cross section at y = 0 using x and z.What is an... more
Precalculus Algebra 2

09/18/22

Algebra /pre calc question

Gaph the piecewise defined functiony=f(x)={x+7,if x<0 7,if x is less than or equal to 0
Precalculus

09/18/22

210 hours to 9 days

Precalculus

09/18/22

210 hours to 9 days ratio

Precalculus

09/18/22

210 hours to 9 days as a ratio

Precalculus Math Calculus Physics

09/18/22

help needed w/ math question

A pair of parametric equations is given below.x = 4 sin(t),  y = 4 cos(t), 0 ≤ t ≤ 𝜋Find a rectangular-coordinate equation for the curve by eliminating the parameter.My answer is y=sqrt... more
Precalculus Algebra 2

09/17/22

A shoe store offers a 30% discount on the list price x of a particular item. The cashier then discounts the price by another 15%.

Evaluate P(D(50)) and interpret its meaning. Solve P(D(x)) = 100.
Precalculus Calculus

09/17/22

Calc question please help i dont understand:/

Consider the function below f(x)=2/|x|,g(x)=x-9Determine the domains of the following. Use a graphing utility to verify your results. (Enter your answers using interval notation.)(a) Domain... more
Precalculus Calculus

09/17/22

Pre calc question

How do you find the domain / range for 5x-3/2-x

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