Solve the problem.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: 
What rainfall produces the maximum number of mosquitoes?
A. 6 in.
B. 144 in.
C. 12 in.
D. 0 in.
Answer: A
Mathematics
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Expand.(1 - 
)4 - (1 + 
)4
A. -56
B. -48
C. -11
D. -111
Mathematics
Write the sentence as an inequality in two variables. Then graph the inequality.The y-variable is at least 5 more than the product of 2 and the x-variable.
A. y < 2x + 5
B. y > 2x + 5
C. y ? 2x + 5
D. y ? 2x + 5
Mathematics
Find the first two nonzero terms of the Maclaurin expansion of the given function.f(x) = tan 3x
A. 3x - 9x3 + ... B. 3x - 54x3 + ... C. 3x + 9x3 + ... D. 3x + 18x3 + ...
Mathematics
Find a unit vector u in the direction of the given vector.
A. 
B. 
C. 
D. 
Mathematics