Answer:
36 feet
Step-by-step explanation:
Given

Required
Determine the maximum height attained
First, calculate the time to reach maximum height;
In a quadratic equation;

The maximum is:

So, we have:

Where

So:





The maximum height is at: 
So, we have:



Step-by-step explanation:
what are you trying to find???
Answer:
1cm:100cm
Step-by-step explanation:
You have to convert the ratio into the same unit (I chose cm). If there are 100cm in a metre, there will be 300cm in 3m.
That leaves you with the ratio 3cm:300cm. To simplify, divide both sides by three leaving you with 1cm:100cm
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I also need help on this question. Someone please help out