Find all critical numbers for the function. State whether it leads to a local maximum, a local minimum, or neither.f(x) = 
+ 0.67x3 - 3.5x2 + 4x + 1
A. Local maximum at -4; local minimum at 1
B. Local maxima at 4 and -1; local minimum at 1
C. Local maxima at -4 and 1; local minimum at 1
D. Local maximum at 1; local minima at -4 and 1
Answer: D
Mathematics
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B. 
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D. 
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Solve the problem.The growth in the population of a certain rodent at a dump site fits the exponential function 
where t is the number of years since 1965. Estimate the population in the year 2000.
A. 104 B. 195 C. 96 D. 192
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Indicate whether the function is one-to-one.A = {(7, -16), (-11, -16), (-15, 16)}
A. No B. Yes
Mathematics
Let 
. Find the function.
?
?
A. 
B. 
C. 
D. 
E. 
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