Identify u and 
for the integral 
.
?
A. 
and 
B. 
and 
C. 
and 
D. 
and 
E. 
and 
Answer: C
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Use a calculator and the change-of-base formula to find the logarithm to four decimal places.log2 (53.42)
A. 26.7100 B. 0.1742 C. 5.7393 D. 1.7277
Multiply or divide and write scientific notation for the result.(19.36 × 104) ÷ (4 × 109)
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Determine whether the given function is one-to-one. If it is one-to-one, find its inverse function.f(x) = x2 - 9
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Solve the problem.Jim has gotten scores of 80 and 79 on his first two tests. What score must he get on his third test to keep an average of 75 or greater?
A. at least 66 B. at least 78.0 C. at least 79.5 D. at least 65