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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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What is the equation of the line passing through the points (3,6) and (2,10)
andrezito [222]

Answer: y= - 4x+18

Step-by-step explanation:

Equation: y=mx+b

***remember: b is the y-intercept and m is the slope.

m=\frac{y2-y1}{x2-x1}

3= x1

2= x2

6= y1

10=y2

m=\frac{10-6}{2-3}= \frac{4}{1}= -4

m=-4

Now we have y=-4x+b , so let's find b.

You can use either (x,y) such as (3,6) or (2,10) point you want..the answer will be the same:

   (3,6). y=mx+b or 6=-4 × 3+b, or solving for b: b=6-(-4)(3). b=18.

   (2,10). y=mx+b or 10=-4 × 2+b, or solving for b: b=10-(-4)(2). b=18.

Equation of the line: y=-4x+18

3 0
3 years ago
Please help it OVER DUE
kotykmax [81]

You know the total amount, 32.00, and the cost of each gallon, 1.60, so you can make an equation using x as the amount of gallons bought.

1.60x = 32.00

Now just divide 32.00 by 1.60

x= 32.00/1.60

x= 20

5 0
4 years ago
Lowest common multiple of 4 and 10
atroni [7]

Answer: 20


Step-by-step explanation:

2^2=4

5*2=10


2^2 and 5 would be multiplied

8 0
3 years ago
Read 2 more answers
What are the integer solutions to the inequality below?<br> <img src="https://tex.z-dn.net/?f=3%5Cleq%203x-4%5C%20%20%5Ctextless
Rudik [331]

Given:

The compound inequality is:

3\leq 3x-4

To find:

The integer solutions for the given compound inequality.

Solution:

We have,

3\leq 3x-4

Case 1: 3\leq 3x-4

3+4\leq 3x

\dfrac{7}{3}\leq x

2.33...\leq x             ...(i)

Case 2: 3x-4

3x-2x

x                  ...(ii)

Using (i) and (ii), we get

2.33...

The integer values which satisfy this inequality are only 3 and 4.

Therefore, the integer solutions to the given inequality are 3 and 4.

7 0
3 years ago
Dream studio offers 5 music lessons for $60 fox studio offers 8 music lessons for $72 what is the cost per lesson
AlexFokin [52]

Answer:

dream studio

1=$12

fox studio

1=$9

therefore, fox studio is better

8 0
4 years ago
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