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MAVERICK [17]
3 years ago
14

If Gabby wants to make a regular octagon with a side length of 20 inches using a wire how much wire does she need? Justify your

reasoning with an explanation of whether permeter is proportional to the side length.
Mathematics
1 answer:
liraira [26]3 years ago
4 0

Answer: 160 inches.

Step-by-step explanation:

If an octagon has 8 sides and the side length is 20 inches, 20 x 8 = 160 inches. That means she needs 160 inches of wire.

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Simplify the following expressing. Show your work and explain each step. <br><br> 7-(5-3(2+6(2^2)))
Anon25 [30]

Answer:

80

Step-by-step explanation:

7-(5-3(2+6(2^2)))

When a question has multiple signs, the rule of BODMAS is used. That is, Bracket Of Division Multiplication Addition and Subtraction. The question above will therefore be solved in that order.

The first bracket, we have 2^2

That gives 4

Rewriting the question will give

7-(5-3(2+6(4)))

The question in the next bracket will follow

(2+6(4))

In this bracket too, we have the plus sign and the multiplication sign, so the multiplication will first be solved, them addition will follow.

(2+24)

(26)

Rewriting the question again, we have

7-(5-3(26))

And then, we have the last bracket

(5-3(26))

But we have both the Subtraction sign and the Multiplication sign in this bracket also, so the multiplication will first be solved, before the Subtraction.

(5-3(26))

(5-78)

(-73)

And lastly we have

7-(-73)

7+73

80

5 0
3 years ago
Maggie volunteered to bake a cake she decided to double the recipe if the original recipe calls for 3/4 cup brown sugar how much
zlopas [31]

Answer:

3/2

Step-by-step explanation:

3/4 * 2 = 6/4 = 3/2

7 0
3 years ago
What is the answer in substiution y=2x-9 and y=3
ale4655 [162]

Answer:

x= -6

Step-by-step explanation:

7 0
1 year ago
Read 2 more answers
Given the measures of three angles of a triangle, explain how to find the ratio of the lengths of two sides of the triangle.
pantera1 [17]

You can let the sides be a and b. You can then use the Law of Sines to create an equation relating the two sides and the angles opposite them, and finally isolate a/b.

8 0
1 year ago
Help with simple interest rate P=$18,000, r= 7.5%, t=18 months
n200080 [17]
=2025
change 18months to years=1.5 years then you use the formula
PRT÷100
18000 \times 7.5 \times 1.5 = 202500 \div 100 = 2025

7 0
3 years ago
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