Acircle has a radius of 4 feet. what is the area of the circle? ( use pi)
show your work

16π ft²

Step-by-step explanation:

Area of a circle can be found simply by applying the formula:

Area = πr²

Area of a circle with radius 4 feet

= π(4)²

= 16π

If we are evaluating the answer with π:

Using π as 3.142,

Area

= 16(3.142)

= 50.272 ft²

50.27 would be the answer.

To solve the area of a circle, use the formula a=pir^2. So, it's a=pi4^2. 4x4 is 16, 16x3.14/pi is 50.27. So the answer is 50.27 feet.

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

hope this is what you were asking for!

step-by-step explanation: