there are 30 rooms available to house 42 students . if each room is occupied by either one or two students, how many rooms are o
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Answer:
Step-by-step explanation:
Given:
To make the subject of the formula means that we want to make
to stand alone , the first thing to do is to multiply through by 1/4a , that is
take the square of both sides:
Circumference formula tells you 
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The formula to find the area of a circle is
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The formula to find the area of a circle is
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If you look up "angles of 7 sided polygon" it would give a result of how many degrees polygons with 7 sides such as this one above would equal to. It's important to know that when finding x angles within.
7-sided polygons = 900 degrees in total
Since all the other angles except x are given, we can add all those up and set it equal to 900. So it would look like this:
Simply solve for x now.
So x = 111 degrees.
Hope this helps!