SOLUTION: You have designed a screen saver for your computer that is an expanding circle, constantly changing colors. The circle starts as a dot in the middle of the screen and expands outwa
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Question 1193282: You have designed a screen saver for your computer that is an expanding circle, constantly changing colors. The circle starts as a dot in the middle of the screen and expands outward. With a 21" screen, you have a viewing area with a 10" radius. The circle reaches the corners in 5 seconds. Express the area of the circle as a function of time t in seconds. Answer by ikleyn(52797) (Show Source):
