Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is s=16t2 + 32t, where s is in feet. How long (to the nearest tenth of a second) will it take the ball to fall 117 feet?
A. 1.7 sec
B. 3.6 sec
C. 2.7 sec
D. 1.9 sec
Answer: D
Mathematics
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What is the pH of a neutral solution?
A. 5 B. 0 C. 7 D. 14
Mathematics
Multiply. Simplify the answer completely.
? 
? 
A. 
B. 
C. 
D. 
Mathematics
Divide.(-9x3 + 3x2 + 14x + 20) ÷ (-3x + 5)
A. x2 + 2 + 
B. 3x2 + 4x + 2 + 
C. 3x2 + 4x + 2
D. 3x2 + 4x + 2 + 
Mathematics
Solve the problem.The sum of two numbers is 33 and their difference is 7. Find the numbers.
A. 27 and 6 B. 11 and 22 C. 13 and 20 D. 22 and 29
Mathematics