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jazzy200232
19.03.2020 •
Mathematics
2. The path of a high diver is given by y = + (2x2 – 9x – 56), where y is the height of the diver
above the water and x is the horizontal distance from the diving board (in feet). How far from the
end of the diving board is the diver when he hits the water?
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Ответ:
The diver will be 8 feet from the end of the board when he hits the water.
Step-by-step explanation:
The diver hits the water when y = 0.
To find the distance, we have to find the values of x when y = 0.
Solving a quadratic equation:
Given a second order polynomial expressed by the following equation:
This polynomial has roots
such that
, given by the following formulas:
In this problem, we have that:
So
Then
It is a horizontal distance, so the answer is a positive value.
The diver will be 8 feet from the end of the board when he hits the water.
Ответ:
Sup stranger
Step-by-step explanation:
:)