Solve the problem.Given the revenue and cost functions R(x) = 32x - 0.4x2 and 
, where x is the daily production, find the rate of change of profit with respect to time when 
and 
A. $120/day
B. $90/day
C. $126/day
D. $122/day
Answer: B
Mathematics
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Use the graph of population change per year for a metro area to answer the question. 
In which year did the population of the metro area decrease the most?
A. 2005 B. 1995 C. 1997 D. 2000
Mathematics
Simplify.- 
A. 
B. 
C. - 
D. - 
Mathematics
Use the formulas for measuring sounds to find the missing value. 
The intensity I of a sound is given. Find the loudness L of the sound.I = 10-7 W/m2
A. L = 70 dB B. L = 60 dB C. L = 190 dB D. L = 50 dB
Mathematics
Simplify the expression. Assume that all variables represent nonnegative real numbers.
- 3
- 2
A. -4
B. 
- 7
C. 5
x
D. -4
Mathematics