Solve the problem.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: M(x) = 13x - x2. What rainfall produces the maximum number of mosquitoes?
A. 169 in.
B. 13 in.
C. 0 in.
D. 6.5 in.
Answer: D
Mathematics
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Find the integral.
dx
A. x - 4 - 9 ln 
+ C
B. 
- 4x + 9 ln 
+ C
C. 
- 9x + 4 ln |x + 6| + C
D. 
- 4x + 9 ln |x + 6| + C
Mathematics
Use the discriminant to determine the number and type of the solutions to the quadratic equation. Do not solve the equation.x2 + 4x + 4 = 0
A. two nonreal solutions B. exactly one real solution C. two real solutions
Mathematics
Find the LCD for the fractions in the list.
, 
A. 63 B. t(t - 7) C. t - 7 D. t
Mathematics
Determine the terms and degree of the polynomial.8m3 - m2 - 8m + 12
A. Terms: 8m3, m2, 8m , 12; degree: 3 B. Terms: 8m3, -m2 , -8m , 12; degree: 6 C. Terms: 8m3, m2, 8m , 12; degree: 6 D. Terms: 8m3, -m2 , -8m , 12; degree: 3
Mathematics