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Leto [7]
3 years ago
12

Find the area of a regular octagon with

Mathematics
1 answer:
sattari [20]3 years ago
4 0

Answer:

482.8 cm

Step-by-step explanation:

A=2(1+sqrt2)a^2=2·(1+squrt2)·10^2=482.84271

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SIS HELP!! How many pennies are on the nth square?
anyanavicka [17]

Answer:

B. , just did the assignment

4 0
4 years ago
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Justify each step of the solution by stating the property that was used to get to each step.
trapecia [35]

For this case we have the following expression:

4.5 (8-x) + 36 = 102-2.5 (3x + 24)

Applying distributive property to the terms within parentheses we have:

36-4.5x + 36 = 102-7.5x-60

We add similar terms on both sides of equality considering that:

Equal signs are added and the same sign is placed.

Different signs are subtracted and the major sign is placed.

72-4.5x = 42-7.5x

We add 7.5x to both sides of equality:

72 + 3x = 42

We subtract 72 from both sides of equality:

3x = -30

We divide between 3 on both sides of equality

x = -10

ANswer:

Distributive property

Add similar terms

Equality property of the sum

Equality subtraction property

Equality property of the division

3 0
3 years ago
Ap:3, 2, 1....<br>what is its coomon difference ​
Nastasia [14]

Answer:

-1

Step-by-step explanation:

3-1=2

2-1=1

3 0
2 years ago
The area of a rectangle is 600 m² the width is 30 m what is the length
Angelina_Jolie [31]

Answer:

20m

Step-by-step explanation:

600 divided by 30 = 20

7 0
3 years ago
A rectangular garden has a width that is 10 feet shorter than the length. Write and simplify an expression to represent the area
morpeh [17]

Answer:

x²-10x=area

Step-by-step explanation:

Area= length×width

Length: x

Width: x-10

Area= x(x-10)= x²-10x

I hope this helps...

:)

6 0
4 years ago
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