susan received a $70 gift card for a coffee store. she used it in buying some coffee that cost $7.23 per pound. after buying the
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<h2>Hello!</h2>
The answer is:
The ball will hit the ground after
Since we are given a quadratic function, we can calculate the roots (zeroes) using the quadratic formula. We must take into consideration that we are talking about time, it means that we should only consider positive values.
So,
We are given the function:
Where,
Then, substituting it into the quadratic equation, we have:
Since negative time does not exists, the ball will hit the ground after:
Have a nice day!
( 4.625, - 3.75 )
the midpoint of (x₁, y₁ ) and (x₂, y₂ ) is
[(x₁ + x₂ ),
(y₁ + y₂ ) ]
here (x₁, y₁ ) = (5.5, - 4.75 ) and (x₂, y₂ ) = (3.75, - 2.75 )
[ (5.5 + 3.75 ),
(- 4.75 - 2.75 ) ]
= (4.625, - 3.75 ) ← midpoint of HX