Solve the problem.A ball is thrown downward with an initial velocity of 42 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 that the ball will be 
from the ground. Round your answer to the nearest tenth of a second.
A. 1.5 sec
B. 1.3 sec
C. 2.4 sec
D. 1.4 sec
Answer: D
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Solve the given applied problems involving variation.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If 
when 
and 
what is the volume when 
and 
A. 350 in.3 B. 370 in.3 C. 360 in.3 D. 330 in.3
Solve the problem.The velocity v (in m/s) of an object moving with acceleration a (in m/s2) is given by 
where t is the time (in seconds). Find a formula for v, if a = 
t(t2 + 1)4.
A. v = 
(t2 + 1)5 + C
B. v = - 
(t2 + 1)5 + C
C. v = 
(t2 + 1)5 + C
D. v = 
(t2 + 1)5 + C
Solve.Keyana takes a job with a starting salary of $45,000 for the first year with an annual increase of 5% beginning in the second year. What is Keyana's salary, to the nearest dollar, in the seventh year?
A. $62,599 B. $60,304 C. $61,052 D. $59,084
Solve the problem.What will it cost to buy ceiling molding to go around a rectangular room with length 
and width 
The molding costs 
per linear foot.
A. $68.80 B. $61.92 C. $130.72 D. $65.36