an athletic facility is building an indoor track. the track is composed of a rectangle and two semicircles, as shown. a) write a formula fir the perimeter of the indoor track. b) solve the formula for x. c) the perimeter of the track is 660 feet, and r is 50 feet. find x. round your answer to the nearest foot.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

the answer is c. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

the answer is that it is true