Solve.A ball is thrown upward with an initial velocity of 14 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. Find the time it takes the ball to hit the ground. Round your answer to the nearest tenth of a second.
A. 4.7 sec
B. 5.1 sec
C. 4.9 sec
D. 6.9 sec
Answer: C
Mathematics
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Solve the problem.A rectangular box with square base and no top is to have a volume of 32 ft3. What is the least amount of material required?
A. 36 ft2 B. 40 ft2 C. 48 ft2 D. 42 ft2
Mathematics
Find the tax rate for the area. Round to the nearest tenth of a percent.Total tax needed: $321,000Total assessed value: $53,103,000
A. 0.5% B. 0.8% C. 6.0% D. 0.6%
Mathematics
Give the center and radius of the circle. Then sketch its graph.(x + 5)2 + (y + 1)2 = 16
A. center (- 5, - 1), r = 4
B. center (5, - 1), r = 4
C. center (5, 1), r = 4
D. center (- 5, 1), r = 4
Mathematics
Convert the units.97.00 dm = m
A. 970 m B. 9700 m C. 0.97 m D. 9.7 m
Mathematics