Answer:
It will take 5.61 seconds for the coin to reach the stream.
Step-by-step explanation:
The height of the coin, after t seconds, is given by the following equation:

How long will it take the coin to reach the stream?
The stream is the ground level.
So the coin reaches the stream when h(t) = 0.


Multiplying by (-1)

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 question:

So




Time is a positive measure, so we take the positive value.
It will take 5.61 seconds for the coin to reach the stream.
Answer:
where is question ???
Step-by-step explanation:
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Answer:
1. y = -5x+2
2. y = 1/2x + 4
3. y = 3x -5
Step-by-step explanation:
hope thus helps :)
780,120?
Attention:check before using this answer it may not be right.
Thank you.