Solve.The number G of gears a machine can make varies directly as the time T it operates. If it can make 7263 gears in 18 hours, how many gears can it make in 15 hours? Round to the nearest whole number if necessary.
A. 0 gears
B. 404 gears
C. 7296 gears
D. 6053 gears
Answer: D
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Solve the problem.A surveyor measured the length of a piece of land at 100-ft intervals (x), as shown in the table. Use Simpson's Rule to estimate the area of the piece of land in square feet.
A. 29,500 ft2 B. 24,000 ft2 C. 24,500 ft2 D. 25,000 ft2
Use the fundamental identities to simplify the expression.
A. csc2? B. 1 C. cot2? D. sec2?
Solve the problem.The length of a rectangular room is 9 feet longer than twice the width. If the room's perimeter is 
what are the room's dimensions?
A. width = 52 ft; length = 122 ft B. width = 26 ft; length = 61 ft C. width = 39 ft; length = 48 ft D. width = 31 ft; length = 71 ft
Solve the logarithmic equation.log x = -2
A. -20 B. 0.01 C. -2 D. -0.2