Combine the following, if possible.
+ 3
+ 9
A. -147
B. 56
C. -56
D. -39
Answer: B
Mathematics
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Find the length of the curve.The curve r = 3
, 0 ? ? ? 
A. 3(? + ln(? + 
))
B. 2?
C. 
(? + 2)
D. 
?
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Find the potential function f for the field F.F = sec2 x sin2 yi + 2 tan x sin y cos yj + 9z8k
A. f(x, y, z) = sec x sin2 y + z9 + C B. f(x, y, z) = sec x sin2 y + z + C C. f(x, y, z) = -sec x sin2 y + z9 + C D. f(x, y, z) = tan x sin2 y + z9 + C
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Solve the equation.x2 + 3x - 40 = 0
A. {-8, 1} B. {8, -5} C. {-8, 5} D. {8, 5}
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Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics