Solve the problem.A rock falls from a tower that is 320 feet 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 
Round to the nearest tenth, if necessary.
A. 17.9 sec
B. 6400 sec
C. 17.4 sec
D. 4.5 sec
Answer: D
You might also like to view...
Find the product.(x + 5)4
A. x4 + 20x3 + 150x2 + 500x + 625 B. x4 + 20x3 + 150x2 + 20x + 625 C. x4 + 20x3 + 250x2 + 500x + 625 D. x4 + 5x3 + 150x2 + 250x + 625
Fill in the blank with one of the words or phrases listed below.
A(n) 
is a natural number greater than 1 whose factors are 1 and itself.
A. prime number B. composite number C. mixed number D. proper fraction
Make an approximate conversion as indicated. Round to the nearest tenth. The precise value of your approximation will depend on the conversion path that you choose.11 m = ____ yds
A. 3.4 yd B. 36.1 yd C. 12.0 yd D. 10.1 yd
Solve.Sue took her collection of nickels and dimes to deposit in the bank. She has five fewer nickels than dimes. Her total deposit was $59.45. How many dimes did she deposit?
A. 403 dimes B. 393 dimes C. 398 dimes D. 791 dimes