Find the sum.92.31569 + 231 + 9.277 + 98.04 + 2.8056

A. 434.43829
B. 433.53829
C. 433.44829
D. 433.43829


Answer: D

Mathematics

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Solve the problem.Tom Quig traveled 220 miles east of St. Louis. For most of the trip he averaged 60 mph, but for one period of time he was slowed to 10 mph due to a major accident. If the total time of travel was 7 hours, how many miles did he drive at the reduced speed?

A. 40 miles B. 35 miles C. 60 miles D. 50 miles

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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (cos x)x

A. (cos x)x (ln cos x - x tan x) B. ln x(cos x)x - 1 C. ln cos x - x tan x D. (cos x)x (ln cos x + x cot x)

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Find the interval of convergence of the series.

A. 0 ? x < 18 B. x < 10 C. 8 ? x < 10 D. 8 < x < 10

Mathematics

Divide, if possible. Write the answer in simplest form. ÷ 

A.
B. 17
C. 16
D. 18

Mathematics