1. a polygon is shown below.
10 ft
3 ft
3 ft
5 ft
2 ft
what is the area of the polygon?
a. 20 ft
b. 30 ft
c. 40 ft
d. 50 ft

Can you add a picture of what the polygon look like?

Step-by-step explanation:

6.34 seconds.

Step-by-step explanation:

The object will hit the ground when h = 0.

-16t^2 + 90t + 72 = 0

8t^2 - 45t - 36 = 0

We can then use the quadratic formula to solve.

[please ignore the A-hat; that is a bug]

=

=

=

(45 - 56.36488268) / 16 = -0.7103051678

(45 + 56.36488268) / 16 = 6.335305168

Since the time cannot be negative, the object will hit the ground after about 6.34 seconds.

Hope this helps!