The ball will hit the ground at 2 seconds.
Step-by-step explanation:
Given that,
The path of the ball = h(x)=−2x2+1x+6
Here,
x is the time while h is the height of ball.
When the ball will hit the ground, the height will become zero. Therefore,
h(x)=−2x2+1x+6
0 =−2x2+1x+6
or
2x2 -1x - 6 = 0
This is a quadratic equation, hence by applying quadratic equation formula:

here,
a = 2
b = -1
c = -6
Putting these values in formula, we get




x = 2, -3/2
As the time cannot be negative. Therefore, the ball will hit the ground at 2 seconds.
A number that stands out and isn't close to any other number
What is the square of the longest side?
80
What is the sum of the squares of the two shorter sides?
80
Is the triangle a right triangle?
Yes, the square of the longest side equals the sum of the squares of the shorter sides
Answer:
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helping see the attachment