G(b) = 5b- 9 h(b) = (b - 1)^2 Evaluate. (hog)(-6) =
1 answer:
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Answer:
r = (200 - y)/π
Step-by-step explanation:
The question details includes;
The shape of the indoor track = Two semi-circular ends and a mid rectangular region
The distance around the indoor track = 400 meters
The radius, <em>r</em>, of the semicircular ends in terms of <em>y =</em> Required
Let <em>y</em> represent the length of the rectangular middle area of the track, we have;
The perimeter of the indoor track = The distance around the track = 400 m
The perimeter of the indoor track = 2 × π·r + 2 × y = 400
2 × (π·r + y) = 400
∴ π·r + y = 400/2 = 200
r = (200 - y)/π
