Solve the problem.An object is propelled vertically upward from the top of a 80-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 0.7 seconds
B. 3.5 seconds
C. 7.7 seconds
D. 2 seconds
Answer: C
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If one of the students is selected at random what is the probability he or she spent exactly 11 hours in the lab?
Use the following information to answer questions 2-10. 24 students in an engineering class were asked to record the number of hours spent in a lab during a week. The results are listed below. 3, 10, 21, 14, 8, 5, 1, 4, 13, 7, 9, 6, 11, 10, 6, 7, 12, 16, 1 , 7, 14, 1, 11, 8
Find the effective rate corresponding to the given nominal rate. Round your answers to three decimal places.
?
6% / year compounded monthly
?
_____%
?
6% / year compounded daily
?
_____%
?
A. 6.183%, 6.136% B. 6.168%, 6.183% C. 6.136%, 6.000% D. 6.183%, 6.000%
Solve the problem.Northwest Molded molds plastic handles which cost $0.30 per handle to mold. The fixed cost to run the molding machine is $2082 per week. If the company sells the handles for $1.30 each, how many handles must be molded and sold weekly to break even?
A. 1301 handles B. 1388 handles C. 2082 handles D. 6940 handles
Find the specified domain.For g(x) = 
and h(x) = 
, what is the domain of (h ? g)?
A. [-7, 8) ? (8, ?) B. [-7, 57) ? (57, ?) C. [0, 57) ? (57, ?) D. [0, 8) ? (8, ?)