The area of a regular octagon is:
A = a * P / 2, where a is an apothem and P is a perimeter.
P = 8 * 8 m = 64 m
A = 9.7 m * 64 m / 2
A = 620.8 / 2 m²
A = 310.4 m²
Answer:
The area of a regular octagon is 310.4 m².
Answer:
'Seven-eighths of 
is added to 12' can be represented algebraically as:
Step-by-step explanation:
Given:
Verbal phrase : 'Seven-eighths of is added to 12'
To write the verbal phrase into an algebraic expression.
Solution:
The verbal phrase 'Seven-eighths' means 7 parts out of 8 and tus can be represented as a fraction = 
'Seven-eighths of ' : The phrase represents the fractional part of variable .
Thus, we have : 
'Seven-eighths of is added to 12' can be represented algebraically as:
152
Step-by-step explanation:
45 seconds = 45/60 minutes = 3/4 minutes . Number of copies = 4*32 + (3/4)*32 = 128 + 24 = 152
Answer:
it is B, the volume of the prism B is 2 times the volume of Prism A
The number of pounds of copper in 120 pounds of brass is = 78 pounds of copper
<h3>Calculation of number of pounds of copper</h3>
The percentage of copper in the brass = 65%
Therefore the quantity of copper in the brass = 65/100= 0.65 pounds
This means that 1 pound brass contains = 0.65 pounds of copper
The quantity of copper in 120 pounds of brass = 120 * 0.65
= 78 pounds of copper.
Learn more about copper here:
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