Find the derivative of the function.y = -3tan x - 13csc x
A. 3sec2 x + 13csc x cot x
B. -3sec2 x + 13csc x cot x
C. 3sec2 x - 13csc x cot x
D. -3sec2 x - 13csc x cot x
Answer: B
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Solve the problem. Round approximations to an appropriate number of significant digits.A dozen bolts with single nuts weigh a total of 24 oz. A gross (twelve dozen, 
of the same bolts with double nuts weighs 336 oz. What are the individual weights of the nuts and bolts?
A. bolt = 1.67 oz, nut = 0.33 oz B. bolt = 240 oz, nut = 48 oz C. bolt = 20.0 oz, nut = 4.0 oz D. bolt = 2.3 oz, nut = 2.0 oz
Solve.In a particular city, 
of the residents subscribe to the local newspaper. Write this fraction as a percent.
A. 29.5% B. 0.295% C. 0.0295% D. 2.95%
Rewrite the following in its equivalent decimal form.1 ? 102 + 6 ? 10 + 2 + 8 ? 10-1 + 2 ? 10-4
A. 162.8002 B. 16.8002 C. 16.28002 D. 16.802
Write the rational expression in lowest terms.
A. 1 B. -t C. -1 D. Already in lowest terms