Rationalize the denominator. Assume that no radicands were formed by raising negative numbers to even powers. 
A. 41
B. 
C. 5
D. 
Answer: B
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Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a4 when a1 = 9, r = 2.
A. 54 B. 72 C. 8 D. 144
Missed work hours caused by one of a class of industrial accidents has a probability density function f (t) = 
e-t + 
e-t/2 + 
e-t/3 where t is measured in hours.What proportion of these accidents result in 5 or fewer missed work hours?Enter just a real number to two decimal places.
Fill in the blank(s) with the appropriate word(s).
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.
A. 
B. 31
C. 23
D. 32
Use the most convenient method (graphing, substitution, or elimination) to solve the system of linear equations.
A. 
B. 
C. 
D. 
E. 