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...
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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...
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Precalculus
09/19/22
Use the pair of functions to find f(g(x)) and g(f(x)). Simplify your answers. f(x) = 1 x − 6 , g(x) = 2 x + 6 f(g(x)) = g(f(x)) =
Precalculus Algebra 2
09/18/22
The radius r (in inches) and volume V of a spherical balloon are related by the function r(V)=∛(3V)/(4π^3). Since air is fed into the balloon, the volume after t seconds is given by V(t)=10+20t.
Find the radius of the balloon 40 seconds after air is pumped into the balloon.
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...
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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...
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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...
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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
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...
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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
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...
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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
09/17/22
The polynomial of degree 3 , P ( x ) , has a root of multiplicity 2 at x = 4 and a root of multiplicity 1 at x = − 1 . The y -intercept is y = − 1.6 .
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...
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