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vladimir1956 [14]
3 years ago
15

How many diagonals can you draw from the vertex of an octagon

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
8 0
From one vertex of an octagon you can draw 5 diagonals.

There are 8 vertices in an octagon, and we are choosing one as our starting vertex. There are then 7 vertices left to draw a line to, but 2 of the vertices are already connected to our main vertex (because they are connected along the side of the octagon). That leaves 5 vertices to draw a diagonal to from our original vertex.
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The population in a small city increased from 1250 people to 2780 people. What is the percent of increase in the number of peopl
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<h3>Answer: Choice B) 122%</h3>

==========================================

Work Shown:

A = 1250 is the initial amount

B = 2780 is the new amount

C = percent change = unknown for now

The formula to use is

C = [ (B-A)/A ] * 100

to calculate the percent change.

Basically we calculate the change (B-A) first and then divide that over the original amount A to compute the decimal form of the answer, which is then converted over to percentage form. The "100" tacked on at the end is what converts from decimal to percent form.

---------

C = [ (B-A)/A ] * 100

C = [ (2780 - 1250)/1250 ] * 100

C = (1530/1250)*100

C = 1.224 * 100

C = 122.4%

C = 122%

---------

The positive C value indicates we have a percent increase. If C were negative, then we'd have a percent decrease.

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An alternating current. I Amperes, is given by i = 10sin2nft.where f is the frequenct in Hertz and t the time in seconds.What is
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1. Bailey withdrew $135 from her checking account. Write an algebraic expression that describes Bailey's action.
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<u><em>Answer:</em></u>

c − 135

<u><em>Explanation: </em></u>

Let's say that the amount of money in Bailey's checking account is  

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<u><em></em></u>

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