Solve the problem.If an object is projected upward with an initial velocity of 80 ft per second from a height h of 384 ft, then its height t seconds after it is projected is defined by the equation . How many seconds after it is projected will it hit the ground?

A. 10 sec
B. 8 sec
C. 3 sec
D. 9 sec


Answer: B

Mathematics

You might also like to view...

Find the exact value of the expression using a sum or difference identity.tan 

A. 2 + 
B. -2 - 
C.
D.

Mathematics

Find the probability.Two dice are rolled. Find the probability that the score on the dice is 11.

A.
B.
C.
D.

Mathematics

Use the Zero Exponent Rule to simplify. All variables are nonzero.-90

A. 0 B. 1 C. -9 D. -1

Mathematics

Convert the function to the specified base. f(x) = 2x; convert to base e

A. f(x) = ln(2)ex B. f(x) = e-x ln 2 C. f(x) = e2 ln x D. f(x) = ex ln 2

Mathematics