Multiply and simplify. Assume that all variables represent positive real numbers.
? 
A. 9
B. 3
C. 3
D. 9
Answer: C
Mathematics
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Express the number as the ratio of two integers.0.724724 . . .
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The gravitational force (in lb) of attraction between two objects is given by 
where x is the distance between the objects. If the objects are 15 ft apart, find the work required to separate them until they are 50 ft apart. Express the result in terms of k.
A. 
k
B. 
k
C. 
k
D. 
k
Mathematics
Use the formula for Sn to find the sum of the first five terms of the geometric sequence.
, 
, 
, 
, . . .
A. 
B. 
C. 
D. 341
Mathematics
Round as indicated.54.4321 to the nearest thousandth
A. 54.422 B. 54.442 C. 54.432
Mathematics