Solve the problem.A water trough has a semicircular cross section with a radius of 0.5 m and a length of 6 m (see figure). How much work is required to pump water out of the trough when it is full? Round to two decimal places when appropriate.
A. 29,400 J
B. 2450 J
C. 4900 J
D. 86,975? J
Answer: C
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Let U = {all soda pops}, A = {all diet soda pops},B = {all cola soda pops}, C = {all soda pops in cans},and D = {all caffeine-free soda pops}. Describe theset in words.(A ? B) ? C'
A. All cola soda pops not in cans B. All diet and all cola soda pops not in cans C. All non-diet, non-cola soda pops not in cans D. All diet cola soda pops not in cans
Find the product, and write in lowest terms, if necessary.1 ? 
A. - 
B. - 
C. 
D. - 
Use properties of limits to find the indicated limit. It may be necessary to rewrite an expression before limit properties can be applied.
(x2 - 2)3
A. -1 B. -3 C. 3 D. 1
Find the value of the trigonometric ratio rounded to four significant digits.cos 53.1° = __________
Fill in the blank(s) with the appropriate word(s).