Perform the operation indicated.
? 
A. 
B. 
C. 
D. 
Answer: D
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Change the order of integration and evaluate the integral.
A. 
?
B. 
?
C. 
?2
D. 
?2
Use the change-of-base formula to find the logarithm. Round your answer to four decimal places. log5 19.35
A. 3.8700 B. 1.8408 C. 1.2867 D. 0.5432
Use sets to solve the problem.A survey of 240 families showed that91 had a dog;70 had a cat;31 had a dog and a cat;91 had neither a cat nor a dog nor a parakeet;7 had a cat and dog and a parakeet.How many had a parakeet only?
A. 24 B. 29 C. 19 D. 34
Solve.An engineer is constructing a rectangular solar-energy panel for a satellite. The panel has a width of 
and a length of 
+ 4. Find the area of the panel in square inches.
A. 2
+ 7 square inches
B. x + 12
square inches
C. x + 7
+ 12 square inches
D. x + 12 square inches