Unformatted text preview: a , b , and c . 4. A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward ﬁrst base with a speed of 24 ft/s. At what rate is his distance from second base decreasing when he is halfway to ﬁrst base? 5. Find the dimensions of a rectangle with perimeter 100 m whose area is as large as possible....
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- Fall '08
- 100 m, 24 ft, entire real line, 90 ft