Simplify the expression. All variables represent positive real numbers.
A. 2500
B. 5
C. 
D. 4
Answer: B
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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
, - 2 ? x ? 2, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 75 B. 150 C. 50 D. 38
Solve the problem.Lori Bray drives a parcel delivery truck. Her usual route consists of 8 stops. How many ways can Lori travel to these stops and return to her warehouse?
A. 40,320 B. 56 C. 8 D. 5040
Find the exact value of the expression if ? = 45°. Do not use a calculator.g(?) = sin ?Find 10g(?).
A. 10
B. -10
C. 5
D. -5
Identify as an equation or an expression.-3(8 - x) + 
A. Expression B. Equation