When it hits the ground the height would be 0.
Set h to 0 and solve for t ( time)
0 = -16t^2 + 112t + 144 divide both sides by -16:
T^2 -7t -9
Factor the polynomial :
( t- 8.1) (t+1.1
Solve for t setting each equation to 0:
T = 8.1 or t = -1.1
Time has to be positive, so the answer is
8.1 seconds
Depending on how everything gets rounded it could also be 8 seconds.
Answer:

Given:

To find:

Step-by-step explanation:

Answer:
2,160 seconds
Step-by-step explanation:
Volume of the Rectangular prism is 2340 square units
Step-by-step explanation:
Given:
X = 13 units,
Y = 12 units,
Z = 15
To Find:
The volume of the rectangular prism = ?
Solution:
The volume of the rectangular prism = 
On substituting the values,
Volume of the Rectangular prism =
Volume of the Rectangular prism = 2340 square units
By using pythagoras theorem where
(Base)^2 +(perpedicular)^2 = (hypotenuse)^2
So,
(5)^2 +(12)^2 = (hypotenuse)^2
25 + 144 = (hypotenuse)^2
169 = (hypotenuse)^2
13 = hypotenuse
So, hypotenuse = 13