Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long (to the nearest tenth) will it take the ball to fall 99 feet?
A. 1.5 sec
B. 2.9 sec
C. 2.5 sec
D. 1.7 sec
Answer: D
Mathematics
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Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire that lies along the semicircle y = 
if the density of the wire is 
.
A. 
= 0, 
= 2
B. 
= 0, 
= 3
C. 
= 3, 
= 3
D. 
= 2, 
= 2
Mathematics
Solve.A service station normally charges $69.95 for an automobile tune-up. A coupon entitles the customer to a 15% discount. What is the cost with a coupon?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the intercepts for the equation.-4x - 2y = 8
A. (0, 0); (0, -4) B. (-2, 0); (0, 8) C. (-3, 0); (0, -4) D. (-2, 0); (0, -4)
Mathematics
Multiply.
A. 8,144 B. 8,135 C. 8,153 D. 944
Mathematics