Solve the problem.The number of people P(t) (in hundreds) infected t days after an epidemic begins is approximated by
. When will the number of people infected start to decline?
A. Day 8
B. Day 7
C. Day 9
D. Day 10
Answer: B
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Answer the question based on the following situation:An honest coin is tossed 1600 times. The random variable X denotes the total number of heads that come up in the 1600 tosses.What are the chances that X is between 780 and 840?
A. approximately 95% B. approximately 34% C. approximately 81.5% D. approximately 68% E. none of these
Find the equation of the line described, and express your answer in the specified form.Parallel to the line y = -2x; passes through the point (4, 7); slope-intercept form
A. y = -2x B. y = -2x + 15 C. y = -2x - 15 D. y - 7 = -2x - 4
Solve by factoring:
A) –4, –1
B) –4, 3
C) –7, –1
D) –4, –3
E) 0, –1
Find the distance d(P1, P2) between the points P1 and P2.
A. 
B. 1
C. 72
D. 