The ball takes 6 seconds to reach the ground.
<u><em>Explanation</em></u>
Height of the ball after
seconds is represented by....
![f(x)= -16(x^2 -5x-6)](https://tex.z-dn.net/?f=f%28x%29%3D%20-16%28x%5E2%20-5x-6%29)
The height of the ball is 0 feet when it hits the ground. So, for finding the number of second the ball takes to reach the ground, <u>we will just plug
into the above equation and then solve for
.</u>
Thus...
![0=-16(x^2-5x-6)\\ \\ x^2-5x-6=0\\ \\ (x-6)(x+1)=0](https://tex.z-dn.net/?f=0%3D-16%28x%5E2-5x-6%29%5C%5C%20%5C%5C%20x%5E2-5x-6%3D0%5C%5C%20%5C%5C%20%28x-6%29%28x%2B1%29%3D0)
Using zero-product property....
![x-6=0\\ x=6](https://tex.z-dn.net/?f=x-6%3D0%5C%5C%20x%3D6)
and
(Negative value is ignored as time can't be negative)
So, the ball takes 6 seconds to reach the ground.
On average one tank holds 108 gallons because 432.4 divided by 4 is 108.1. One half full tank would hold about 54 gallons (54.05 to be exact) because half of 108.1 gallons (a full tank) is 54.05 gallons.
Answer:
75/4=3/100
Step-by-step explanation:
sinple this is on proportion
if you want crisscross the fraction
Answer:
320
Step-by-step explanation:
4*80=320
Answer is A
Triangle UVW ~ Triangle UWT ~ Triangle WVT