Some states pay $0.05 for each can that is recycled. Which graph represents the amount of money earned, y, by recycling x cans i
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When the ball will hit the ground, the height will be zero. So we need to replace 
with 0 in our equation, and solve for 
:
To solve this equation we are going to use the quadratic formula:
.
From our height equation, we can infer that
, 
, and 
. So lets replace those values in our quadratic formula to find
or 
or 
Since time cannot be negative, is the solution of our equation.
We can conclude that the ball will hit the ground after 2.71 seconds.
To solve this equation we are going to use the quadratic formula:
From our height equation, we can infer that
Since time cannot be negative,
We can conclude that the ball will hit the ground after 2.71 seconds.
I hope this helps you
we are given
where
y is average gas mileage in miles per gallon
x is speed in miles per hour
we have to find average gas mileage at a speed of 60 miles per hour
so, we have
now, we can plug it and find y
we get
so,
the best approximate for the average gas mileage at a speed of 60 miles per hour is 30.7 mi/gal...........Answer