Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 11
D. 7
Answer: B
Mathematics
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Solve the problem.One end of a guy wire is attached to the top of a 10-foot pole and the other end is anchored into the ground 6 feet from the base of the pole. Find the length of the guy wire. Round to the nearest tenth of a foot when appropriate. 
6 ft
A. 16 ft B. 16.6 ft C. 12.3 ft D. 11.7 ft
Mathematics
Solve.How much soil is needed to fill a rectangular hole 3 feet by 2 feet by 4 feet?
A. 24 cu ft B. 36 cu ft C. 12 cu ft D. 32 cu ft
Mathematics
Use the right triangle shown and find the missing length. If necessary, round to three decimal places. 
c = 13, a = 5
A. 4.243 B. 2.828 C. 12 D. 13.928
Mathematics
Identify the fraction as a proper fraction, an improper fraction, or a mixed number.
A. Proper fraction B. Mixed number C. Improper fraction
Mathematics