Solve the problem.The mainsail of a sailboat is triangular in shape. What is the area of a mainsail with dimensions 11 ft, 15 ft, and 5 ft?
A. 13 ft2
B. 15 ft2
C. 35 ft2
D. 37 ft2
Answer: B
Mathematics
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Rationalize the denominator.
A. 324
B. 324
C. 324
D. 324
Mathematics
Solve the problem.A layer of paint on a piece of wood has a thickness of 
inch. The thickness of the piece of wood is 
inch. What is the total thickness of the wood and the paint?
A. 
inch
B. 3 inches
C. 
inch
D. 
inch
Mathematics
Solve the system by substitution.
x - 
y = -18
x + 
y = -9
A. {(-12, 0)} B. {(0, 12)} C. {(0, -12)} D. {(12, 0)}
Mathematics
Solve the problem. Use 3.14 for ?.Find the area of the circular racetrack.(Round to the nearest foot.) r = 95 ft R = 130 ft 
A. 24,728 ft2 B. 28,339 ft2 C. 15,386 ft2 D. 53,066 ft2
Mathematics