# RelatedRatesAnswers - Spheres/Circles 1 in dr 1. = dt 10...

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Spheres/Circles 1. 1 min 10 dr in dt π = 2. 3 32 min dV in dt = − 3. 3 16 dV in hr dt = − 4. a. 4 9 dr ft hr dt = − b. 2 () 8 3 d SA ft hr dt = − 5. 3 min 20 dr in dt = 6. Area is decreasing by 4 . 7. 2 20 sec dA m dt = Cones 1. a 2 sec 3 dh in dt = b. 3 sec 8 dh in dt = 2. a. 1 min 8 dh m dt = − b. 8 min dh m dt = − 3. 12 min dh m dt = 4. a. 40 min 9 dh cm dt = − b. 3 18 min dV cm dt = − c. 1 min dh cm dt = Cones, Spheres again 5. 40 0.189 min min 9 dh gal ft dt = 6. 3 600 min dV in dt = 7. 33 2133.2 35.6 min dV in in hr dt ππ = →−

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Water Trough 1. 1 min 18 dh ft dt = 2. 3 min 4 dh ft dt = 3. 1 min 25 dh ft dt = 4.
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## This note was uploaded on 10/03/2011 for the course CALCULUS 1431 taught by Professor All during the Fall '11 term at University of Houston.

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RelatedRatesAnswers - Spheres/Circles 1 in dr 1. = dt 10...

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