Solve the problem.A ball is dropped from a height of 21 m and always rebounds 
of the height of the previous drop. How far does it travel (up and down) before coming to rest?
A. 126 m
B. 42 m
C. 63 m
D. 105 m
Answer: D
Mathematics
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Find the missing factor.-2x8y8 = xy ? ?
A. -2x9y9 B. x9y9 C. -2x7y7 D. x7y7
Mathematics
Evaluate the integral by making a substitution and then using a table of integrals. 
A. 
- 2 ln
+ C
B. 4 sin-1
- 
+ C
C. 4 sin-1
+ x
+ C
D. 4 sin-1
- 
+ C
Mathematics
Solve the problem.On a holiday weekend, Nancy drove 2
hours in rush-hour traffic. When traffic eased up, she was able to increase her speed by 40 miles per hour and drove another 3
hours. If the entire trip was 284 miles, how fast did she drive in rush-hour traffic?
A. 25
mph
B. 25 mph
C. 26 mph
D. 24 mph
Mathematics
Find the product.(x + 15)2
A. x2 + 225 B. x + 225 C. 225x2 + 30x + 225 D. x2 + 30x + 225
Mathematics