A rock is tossed off a balcony. Its height (in feet) is given by the formula h
(
t
)
=
−
16
t
2
+
7.7
t
+
130
, where
t
is measured in seconds.
How long will it take the rock to hit the ground?

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.

Acone with radius 5 cm and height 12 cm how many cm ?