Solve the problem. Round to the nearest tenth, if necessary.A rock falls from a tower that is 480 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 (h = 0)?
A. 14,400 sec
B. 21.9 sec
C. 5.5 sec
D. 21.5 sec
Answer: C
Mathematics
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Perform the operation and write the result in standard form. ? 7z - [6z - (7z + 3)] ?
A. z + 3 B. 7z - 3 C. 8z - 3 D. 8z + 3 E. 6z - 3
Mathematics
In isosceles triangle 
, XY = YZ = 10, and XZ = 16. Where C is the centroid of , find the distance from C to side 
of the triangle.
A. 2 B. 2.5 C. 3 D. 4
Mathematics
Translate the word statement into a percent equation. Do not solve.4.7 is what percent of 47?
A. 4.7 ? 47 = n B. 4.7 ? n = 47% C. 4.7 = n ? 47 D. 4.7 ? n = 47
Mathematics
What are the coordinates of point A?
Mathematics