Perform the indicated operation and write your answer with positive integer exponents.
? 
A. 
B. 1
C. 
D. -1
Answer: D
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List the prime numbers less than 20.
A. 2, 4, 3, 5, 7, 9, 11, 13, 17, 19 B. 1, 2, 3, 5, 7, 11, 13, 17, 19 C. 2, 3, 5, 7, 11, 13, 17, 19 D. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19
A hypothesis test is to be performed. State the null and alternative hypotheses.A health insurer has determined that the "reasonable and customary" fee for a certain medical procedure is 
They suspect that the average fee charged by one particular clinic for this procedure is higher than 
The insurer wants to perform a hypothesis test to determine whether their suspicion is correct.
A. Null hypothesis: mean fee < $1200 Alternative hypothesis: mean fee > $1200 B. Null hypothesis: mean fee > $1200 Alternative hypothesis: mean fee = $1200 C. Null hypothesis: mean fee = $1200 Alternative hypothesis: mean fee ? $1200 D. Null hypothesis: mean fee = $1200 Alternative hypothesis: mean fee > $1200
Evaluate the integral by making a substitution and then using a table of integrals.
A. 
tan-1 
+ C
B. 
tan-1 
+ C
C. 
sin-1 
+ C
D. 
sin-1 
+ C
Find the missing coefficient so that the lines are perpendicular.
and y = Bx + 17 ;
A. B = 
B. B = - 
C. B = - 3
D. B = 3