Solve.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches, according to the function 
What rainfall produces the maximum number of mosquitoes?
A. 3.5 in.
B. 49 in.
C. 7 in.
D. 0 in.
Answer: A
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Solve the given trigonometric equation analytically (using identities when necessary for exact values when possible) for values of x for 0 ? x < 2?.2 sin2 x = sin x
A. 
, 
B. 0, ?, 
, 
C. 
, 
, 
, 
D. 
, 
Write a system of inequalities whose solution set is the region shown.
A. y ? 0 x2 + y2 ? 16 B. y ? 0 x2 + y2 ? 16 C. y ? 0 x2 + y2 ? 16 D. y ? 0 x2 + y2 ? 16
Indicate whether the value of x shown is a solution of the given equation.x - 3.2 = 8, if x = 4.8
A. Yes B. No
The function 
represents the value of the U.S. dollar in Indian rupees as a function of the time t in days. Find the average rates of change of 
over the time intervals
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, 
, 
, and 
days. Hence, estimate (using 
) the instantaneous rate of change of 
at time 
.
?
Select your answer rounded to the nearest whole number.
?
A. 63
B. 69
C. 64
D. 67
E. 68