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# Find the marginal cost for 7 widgets c hxl 3 x 2 6 x

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Unformatted text preview: HcL Find how high the book goes HdL Find how long the book is aloft 2. HaL HbL HcL v HtL = 27 - 1.2 t m ÄÄÄÄÄÄÄÄÄÄÄÄÄ Ä sec Find when the velocity is 0 m a HtL = - 1.2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ä sec2 Æ 27 - 1.2 t = 0 s H22.5L = 27 H22.5L - 0.6 H22.5L2 = 303.75 meters 6 135 27 = ÄÄÄÄÄ t t = ÄÄÄÄÄÄÄÄÄÄÄÄÄ = 22.5 seconds Ä 5 6 HdL using symmetry Æ H22.5 secondsL H2L = 45 seconds 3. Suppose it costs c HxL = x3 - 3 x2 + 8 x + 4 dollars to produce x widgets when 5 to 15 widgets are produced. Find the marginal cost for 7 widgets. c ¢ HxL = 3 x 2 - 6 x + 8 when 5 £ x £ 15 c ¢ H7L = 3 H7L 2 - 6 H7L...
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## This note was uploaded on 02/11/2013 for the course MATH 1 taught by Professor Greene during the Spring '08 term at UCLA.

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