Find the absolute extreme values of the function on the interval.f(x) = - 4 e-x2, -? < x < ?
A. Minimum value is - 4 at x = 0; no maximum value
B. Minimum value is - 4 at x = 0; maximum value is - 
at x = 1
C. No minimum value and no maximum value
D. Maximum value is - 4 at x = 0; minimum value
Answer: A
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gives the number of units of two models of laptops produced by a company. The vector 
gives the prices (in dollars) of the two models of laptops, respectively. Identify the vector operation used to increase revenue by 6%.
a. 
b. 
c. 
d. 
e. 
Indicate the quadrant in which the point (-9, 9) lies. ?
A. quadrant III B. quadrant I C. quadrant IV D. quadrant II E. none of these
Determine between which two consecutive whole numbers each square root lies.
A. 11 and 12 B. 14 and 15 C. 20 and 21 D. 15 and 16
Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300 B. $0.60 C. $1 D. $100