What expression is equivalent to (fg) (5)

 The answer is f(g(5)).

Step-by-step explanation:  We are given to write the expression which is equivalent to (fg)(5), where f(x) and g(x) are two functions.

We write the expression as follows:

(fg)(x) = f(g(x)), so that (fg)(5) = f(g(5)). That is, first we will evaluate g(5), whatever the value we get, we will find f of that value. to reach at our result.

For example,

if f(x) = x+3, and g(x) =  x²+1, then

(fg)(x) = f(g(x)) = f(x²+1) = x²+1+3 = x²+4.

Hence, (fg)(4) = f(g(4)) = f(17) = 17 + 3 = 20.

Thus, (fg)(5) = f(g(5)).

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

pi x^2

step-by-step explanation:

pi times x squared