Solve the problem.An object is propelled vertically upward from the top of a 160-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. 2 seconds
B. 7.5 seconds
C. 0.6 seconds
D. 15.6 seconds
Answer: D
Mathematics
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Find the effective annual interest rate for the given nominal annual interest rate. Round your answers to the nearest 0.01%.4% compounded semiannually
A. 4.06% B. 4.07% C. 4.04% D. 4.00%
Mathematics
Solve.When Maria finished medical school she owed $60,000 in student loans. She repaid 
of the total amount within two years of graduating. How much did she repay within two years of graduating?
A. $4000 B. $44,000 C. $40,000 D. $36,000
Mathematics
Decide whether or not the function is continuous in the indicated x-interval.0 to 3
A. Not continuous B. Continuous
Mathematics
Solve the three-part inequality. Write your answer in interval notation.-7 < 5x + 3 ? 13
A. [-2, 2) B. [-2, 2] C. (-2, 2] D. (-2, 2)
Mathematics