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@Eagle-Rye Reiny!

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a prism has a base and a height. What is the "other" part of 5? If you mean the base is 12x5 and the height is 9, then the area is two bases of 12x5 = 2*60 = 120 two faces of 12x9 = 2*108 = 216 two faces of 5x9 = 2*45 = 90 sum = 426
Huh. Good thing we got a second opinion. Ahem. As I was saying, amplitude: (14-4)/2 = 5 center line: (14+4)/2 = 9 so, we can start with y = 9+5cos(kx) y = 9+5cos(π/5 x) y = 9+5cos(π/5 (x-7)) As for the shift, (x-7), (x+3) tomato, tomahto. Since the

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