Find the partial fraction decomposition for the rational expression.

A. -  -  + 
B.  +  - 
C. -  +  + 
D. -  +  + 


Answer: C

Mathematics

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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (10t sin t + 10 cos t)i  + (10 t cos t - 10 sin t)j ; -3 ? t ? 6

A. 225 B. 135 C. 450 D. 270

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Solve the problem.A truck driver started a trip at an average speed of 70 miles per hour. Once snow began to fall, he had to drop his speed to 50 miles per hour. It took him 14.2 hours to reach his destination, which was 804 miles away. How many hours after the driver started did the snow begin to fall?

A. 4.5 hr B. 4.7 hr C. 9.5 hr D. 9.7 hr

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Make the indicated conversion within American units of weight.624 ounces to pounds

A. 62 lb B. 39 lb C. 156 lb D. 40 lb

Mathematics

The sequence is defined recursively. Write the first four terms of the sequence.a1 = 4 and an = 3an-1 + 5 for n ? 2

A. 4, 17, 41, 113 B. 4, 17, 56, 173 C. 4, 7, 16, 43 D. 4, 12, 36, 108

Mathematics