Find all critical numbers for the function. State whether it leads to a local maximum, a local minimum, or neither.f(x) = 
A. No critical numbers; no local extrema
B. Local maximum at -5; local minimum at 1
C. Local minimum at 1
D. Local maximum at -5
Answer: A
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Give an appropriate answer.A statistics student takes a poll of her fellow students to find out which presidential candidate the sample of students favors. Based on her results, she makes a prediction about which candidate will win the election. Comment on the fairness of her prediction. What might she do to improve her poll?
What will be an ideal response?
A parabolic archway has the dimensions shown in the figure. Find the equation of the parabolic portion.
?
?
ft, 
ft, 
ft, 
ft
?
What will be an ideal response?
Perform the indicated operation. Assume that all variables are nonnegative.(
+ 
)2
A. 
+ 
+ 2
B. 7 + 
C. 7 + 2
D. 29 + 2
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.5y = 35 - 8x2x = 65 - 5y
A. {(-5, 15)}
B. {(5, -15)}
C. {
8x + 5y = 35 }
D. ?