You want the (positive) distance when the height is 0, 0= -d^2 + 10d +5.
You would factor that out(You'd get radicals), and the final answer would be
<span>5±<span>30<span>−−</span>√</span></span><span>
You'd take the only positive one of the two, 5 + srt(30)
I hope I did that right :/</span>
Answer:
I think c and d
Step-by-step explanation:
srry if im wrong
The correct answer would be-11
The length of the copy is 16.8 cm ,The length of the original is 25 cm.
<h3>
What is Percentage ?</h3>
Percentage is a number or ratio that represents a fraction of 100
It is given that
A photocopier makes copies that are 40% larger than the original.
An original is 12cm long. Find the length of the copy.
The copy will be
140 % of 12 cm
140 * 12/100
16.8 cm
Therefore , the length of the copy is 16.8 cm.
A copy is 35cm long. Find the length of the original.
The original will be x
140 * x / 100 = 35
x = 35 * 100 / 140 = 25cm
The length of the original is 25 cm.
To know more about Percentage
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