Solve.A rock falls from a tower that is 122.5 m 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)? Round to the nearest tenth.

A. 3100 sec
B. 11.1 sec
C. 25 sec
D. 5 sec


Answer: D

Mathematics

You might also like to view...

Solve the problem.The side of an equilateral triangle is  shorter than the side of a square. The perimeter of the square is  more than the perimeter of the triangle. Find the length of a side of the triangle.

A. 13 inches B. 15 inches C. 16 inches D. 18 inches

Mathematics

Determine whether the pair of lines is parallel, perpendicular, or neither.12x + 4y = 1618x + 6y = 27

A. parallel B. perpendicular C. neither

Mathematics

Evaluate the function as indicated.g(x) = log3 xg(81)

A. 5 B. 2 C. 4 D. 3

Mathematics

The triangles below are similar. Find the value of x. Round your answer to the nearest whole number.


a.  27
b.  66
c.  60
d.  54

Mathematics