Solve the problem.The following table shows the median number of hours of leisure time per week for Americans in various years.
Let L be the median number of hours of leisure time at t years since 1973. The data can be modeled by the quadratic model 
Use the model to estimate the year when the median number of hours of leisure time was the smallest.
A. 1988
B. 1987
C. 1989
D. 1986
Answer: A
Mathematics
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Solve the initial value problem.?2
- 3?y = ?5 sec ? tan ?; ? > 0, y(?) = 0
A. y = - 
- ?2 , ? > 0
B. y = 
+ ?3 , ? > 0
C. y = - 
- ?3 , ? > 0
D. y = 
+ ?2 , ? > 0
Mathematics
Insert < or > to make the statement true.0 _____ |-17|
A. < B. >
Mathematics
Find the average rate of change for the function over the given interval.y = x3 + x2 - 8x - 7 between x = 0 and x = 2
A. -28
B. -2
C. 
D. - 
Mathematics
Determine whether the system has exactly one ordered-pair solution, no solution, or infinitely many solutions.
A. no solution B. one ordered-pair solution C. infinitely many solutions
Mathematics