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Lelu [443]
2 years ago
13

What is the approximate area of a regular heptagon with a side length of 4 inches and a distance from the center to a vertex of

4.6 inches?
Mathematics
1 answer:
jok3333 [9.3K]2 years ago
4 0
Split it into 7 triangles. Half-base of each is 2 so the distance of center to the midpoint of the base is (Pythagoras) square root of (4.62 - 22) = 4.162 triangle is this times 2, and with 7 triangles multiply also by 7 to get an approximate area of 58 sq in. 
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How to slove step by step
wariber [46]
\frac{x+3}{12} = \frac{2}{7}

Multiply both sides by 12, so that we get rid of the fraction in x.

12 · (x+3)/12 = 2/7 · 12

Simplify.

x + 3 = 24/7

Then, subtract 3 from both sides, so that "x" gets isolated.

x = 24/7 - 3

Turn "3" into an improper fraction so that we could find the value of x easier.

3 = 21/3

So :

x = 24/7 - 21/7

Simplify.

x = 3/7

~Hope this helps!~


7 0
3 years ago
How to solve sets in mathematics ​
FinnZ [79.3K]

Answer:

Sets, in mathematics, are an organized collection of objects and can be represented in set-builder form or roster form. Usually, sets are represented in curly braces {},

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5 0
3 years ago
What percent of 752 is 25?
wariber [46]
25 is about 3.32% of 752.
5 0
2 years ago
In a survey of 295 people , 23% said they live in an apartment, about how many people surveyed live in an apartment?
ankoles [38]

Answer:

67.85%

Step-by-step explanation:

Find 23% of 295.

<em>Hope this helps u :)</em>

7 0
2 years ago
Frank has devised a formula for his catering business that calculates the number of meat balls he needs to prepare the formula i
ira [324]

Answer:

96 meatballs are required

Step-by-step explanation:

We know that the formula for he catering business is

m=4a+2c

Where

c= the number of children, m=the number of meat balls, a= the number of adults

So if c = 8  and a = 20 then

m = 4(20) + 2(8)

m = 80 + 16

m = 96

Finally  96 meatballs are required for the party

4 0
3 years ago
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