Simplify.
A. 0
B. -3
C. ±3
D. 3
Answer: D
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Solve the problem.The area of a rectangular wall in a classroom is 216 square feet. Its length is 3 feet shorter than three times its width. Find the length and width of the wall of the classroom.
A. width = 9 ft; length = 18 ft B. width = 9 ft; length = 30 ft C. width = 9 ft; length = 24 ft D. width = 9 ft; length = 12 ft
Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.csc ? = 1.961
A. 27.560° B. 27.56° C. 30.66° D. 30.660°
Solve the problem.Alex has saved $770 at the bank. He wants to accumulate $1750 for a trip to soccer camp. What percent of his goal has been reached?
A. 44% B. 0.44% C. 20% D. 2%
Solve the problem.To find the distance between two small towns, an electronic distance measuring (EDM) instrument is placed on a hill from which both towns are visible. The distance from the EDM to the towns is 
and 
and the angle between the two lines of sight is 
Find the distance between the towns to the nearest tenth of a mile.
A. 6.2 mi B. 5.3 mi C. 4.7 mi D. 6.7 mi