Evaluate the double integral over the given region.
R: 0 ? x ? 
, 0 ? y ? ?
A. ?
B. 
C. 
D. 
Answer: C
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Multiply, and then simplify if possible. Assume all variables represent positive real numbers.
(
+ 
)
A. 15 + 9
B. 30
C. 15 + 3
D. 225 + 3
Subtract. Combine like terms, and write the answer in descending order.(-9b2 + 1) - (-b3 - 7b2 + 3)
A. b3 - 2b2 - 2 B. b3 - 16b2 + 4 C. -8b3 - 6b2 - 3 D. -8b3 - 7b2 - 2
In tests conducted by Auto Test Magazine on two identical models of the Phoenix Elite - one equipped with a standard engine and the other with a turbo-charger - it was found that the acceleration of the former is given by
?
?
ft/sec, t sec after starting from rest at full throttle, whereas the acceleration of the latter is given by
?
?
ft/sec. How much faster is the turbo-charged model moving than the model with the standard engine at the end of a 10-second test run at full throttle?
?
A. 60 ft/sec
B. 67 ft/sec
C. 65 ft/sec
D. 50 ft/sec
Solve the problem.If f varies jointly as q2 and h, and f = -16 when q = 2 and h = 2, find f when q = 3 and h = 5.
A. f = -10 B. f = -18 C. f = -90 D. f = -30