Subtract.-8 - (-3)
A. -11
B. 5
C. 11
D. -5
Answer: D
Mathematics
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Solve the variation problem.The time necessary to make an enlargement of a photo negative varies directly as the area of the enlargement. If 120 sec are required to make a 
enlargement, find the time required for a 
enlargement.
A. 240 sec B. 168 sec C. 216 sec D. 192 sec
Mathematics
Simplify.4 - (2 - 2 ? 42)
A. -26 B. -30 C. 34 D. 66
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Determine whether the function is odd, even, or neither.f(t) = tan t + cos t
A. Odd B. Neither C. Even
Mathematics
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). How many cubic feet of fuel will the tank hold to the nearest cubic foot?
A. 3 B. 8 C. 7 D. 2
Mathematics