Solve for the angle ?, where 0 ? ? ? 2?sin2? = 
A. ? = 
, 
, 
, 
B. ? = 0, ?, 2?
C. ? = 
, 
, 
, 
D. ? = 
, 
, 
, 
Answer: D
Mathematics
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Solve the problem.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 84 seconds are required to make a 3-by-7 enlargement, find the time required for a 6-by-8 enlargement.
A. 288 sec B. 144 sec C. 240 sec D. 192 sec
Mathematics
Find the average value of the function f over the given region.f(x, y) = 
over the region bounded by 
, 
, 
, and 
.
A. 
ln 2
B. ln 2
C. 
ln 2
D. 6 ln 2
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.522.5460
A. 52
B. 5225
C. 522
D. 52,254
Mathematics
Solve the equation and check the solution.5(3x - 1) + 8(-5 + 2x) = 5(6x + 5) - 6
A. x = -26 B. x = 0 C. x = 6 D. x = 64
Mathematics