Answer:
x = 0 and x = 1
Step-by-step explanation:
Given that,
A football is kicked into the air. The height of the football can be modeled by the equation :
![h = -16x^2 + 16x](https://tex.z-dn.net/?f=h%20%3D%20-16x%5E2%20%2B%2016x)
Where
h is the height reached by the ball after x seconds
When it touches the ground, h = 0
So,
![-16x^2 + 16x=0\\\\16x(-x+1)=0\\\\x=0\ and\ x=1](https://tex.z-dn.net/?f=-16x%5E2%20%2B%2016x%3D0%5C%5C%5C%5C16x%28-x%2B1%29%3D0%5C%5C%5C%5Cx%3D0%5C%20and%5C%20x%3D1)
So, it will touch the ground at x = 0 and x = 1 seconds.
Answer:
x=-1
y=-5
Step-by-step explanation:
(7x+y)-(x+y)=-6
6x=-6
x=-1
-1+y=-6
y=-5
Hello,
The excluded values are the roots of the denominator.
x²-7x+10=x²-2x-5x+10=x(x-2)-5(x-2)=(x-2)(x-5)
Roots of the denominator are x=2 and x=5
Answer:
<h2>A.20/21</h2>
Step-by-step explanation:
I ask my teacher and she said that it was 20/21 but she did not know it was test answer lol