Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 7
C. 7
D. 
Answer: A
Mathematics
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Solve the application problem.Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 13 miles with the wind, and in the same amount of time runs 6 miles against the wind. What is the rate of the wind? (Round your answer to the nearest tenth, if necessary.)
A. 3.5 mph B. 13.6 mph C. 5 mph D. 1.8 mph
Mathematics
Find the exact value of the expression using the provided information.Find sin(B - C) given that sin B = - 
, with B in quadrant IV, and 
with C in 
A. 
B. 
C. 
D. 
Mathematics
Calculate. Write answer in lowest terms.3
+ 4
A. 7
B. 8
C. 8
D. 7
Mathematics
Factor.x2 - 3x - 54
A. (x - 6)(x + 1) B. Prime C. (x - 6)(x + 9) D. (x + 6)(x - 9)
Mathematics