Answer:
none of those are correct.
Step-by-step explanation:
5 red
7 blue
8 white
5 red + 7 blue= 12
5 red + 7 blue + 8 white= 20
=12/20
=6/10
<h2><u><em>
=3/5</em></u></h2>
Answer:
At 0.713 second the ball will hit the ground
Step-by-step explanation:
The height of an object t seconds after it is thrown from a height of h feet is modeled by the equation:

The ball is thrown from a point 6 feet above ground with an initial velocity, v, of 30 feet per second, equation becomes:

It is required to find the time when the ball hits the ground. At that point, h(t) =0.
So,

Above is a quadratic equation, the value of time is given by :
t = -0.526 s and t = 0.713 seconds
So, at 0.713 second the ball will hit the ground.
Answer:
x¹=-6 x²=0
Step-by-step explanation:
Substitute y =0
Swap sides
Factor expression
Split into possible cases
Solve equation
I can run that mybe 40 times