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allochka39001 [22]
3 years ago
12

Find the coordinates of the other endpoint of the segment, given its midpoint and one endpoint.

Mathematics
1 answer:
Readme [11.4K]3 years ago
7 0

Answer:

the answer is B. (15,4) :

Step-by-step explanation:

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A ball is thrown from a height of 38 meters with an initial downward velocity of 3 m/s
ANTONII [103]
<h2>Hello!</h2>

The answer is:

The ball will hit the ground after t=2.47s

<h2>Why?</h2>

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,

\frac{-b+-\sqrt{b^{2} -4ac} }{2a}

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a=-5\\b=-3\\c=38

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Since negative time does not exists, the ball will hit the ground after:

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Have a nice day!

4 0
3 years ago
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