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First solve each part separately... g(n) = n^2 + n so: g(5) = 5^2 + 5 g(5) = 25 + 5 g(5) = 30 then... h(n) = n^2 - 4 so: h(4) = 4^2 - 4 h(4) = 16 - 4 h(4) = 12 Therefore: g(5) - h(4) = 30 - 12 which = 18 I know I put in steps that you are going "duh"...

Problem: A rectangle is inscribed in a circle of diameter 33". Express P, the perimeter as a function of L, its length. My work and answer: (I used the Pythagorean Thereom but changed A & B to W & L, as I believe the diamter of the circle would divide the rectangle in half creating two...