Solve the problem.A rock falls from a tower that is 208 ft high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 13.9 s
B. 14.4 s
C. 3.6 s
D. 2,704 s
Answer: C
Mathematics
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Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds
Mathematics
What is the standard deviation of this set of numbers: 6, 5, 2, 9, 0, 3, 3?
A. 2.94 B. 4.00 C. 9.00 D. 3
Mathematics
Solve.240 is what percent of 48?
A. 5% B. 50% C. 500% D. 20%
Mathematics
Provide an appropriate response.A(n) 
is a promise to repay money at a specific date in the future and to pay interest annually or semiannually.
A. indenture B. stock C. bond D. cumulative
Mathematics