Find the interval on which the curve 
is concave downward.
What will be an ideal response?
(?1, ?)
Mathematics
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Write in exponential notation. Do not evaluate.(-2)(-2)(-2)(-2)
A. 8 B. (-2)2 C. (4)2 D. (-2)4
Mathematics
Evaluate the expression.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.The owner of a video store has determined that the profits P of the store are approximately given by 
where x is the number of videos rented daily. Find the maximum profit to the nearest dollar.
A. $7267 B. $7200 C. $3600 D. $3667
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.x2 + 26x + 27
A. Prime B. (x + 9)(x - 3) C. (x + 27)(x - 1) D. (x - 9)(x + 3)
Mathematics