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Eduardwww [97]
3 years ago
9

How do I solve this ? Where do I start?

Mathematics
1 answer:
Schach [20]3 years ago
8 0

A regular octagon means that each of the 8 sides are equal. So, each side is 20 inches. To find the total amount of wire, you just find the perimeter:

8 * 20 = 160 inches of wire

It is important to note that since this is a regular shape, all sides are equal, which means that the perimeter is proportional to the side lengths.

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Please help and explain please. would appreciate it!
Reptile [31]

Answer:

Step-by-step explanation:

A/4=72/12

A=4(72)/12

A=24 u^2

4 0
3 years ago
Read 2 more answers
Write the slope-intercept form of the equation of the line described. through (2, -5) perpendicular to y = 1/3x -1
Cloud [144]

Answer:

y = -3x + 1

Step-by-step explanation:

Perpendicular lines have opposite reciprocal slopes, so the slope will be -3.

Plug in the slope and given point into y = mx + b

y = mx + b

-5 = -3(2) + b

-5 = -6 + b

1 = b

Then, plug in the slope and y intercept into y = mx + b again:

y = -3x + 1 will be the equation of the line

7 0
2 years ago
A savings account pays 4 1/2% interest. How much interest
Ghella [55]

Answer:

Interest = $60.75

Amount = $510.75

Step-by-step explanation:

The formula for finding interest is;

Interest = Principal * Rate * Time

And here;

Principal = $450

Rate = 41/2% or 4.5%

Time = 3 years

Interest = \frac{450 * 45 * 3}{1000}

Divided by 100 because of the percentage of the rate but here I made it 1000 because I moved the decimal point in the 4.5 forward once which means I have to add 0 to the denominator.

              = \frac{45*45*3}{100}

             = \frac{6075}{100}

            = $60.75

Now the amount is simply the Principal + Interest which will be;

= $450 + $60.75

= $510.75

6 0
2 years ago
Choose the logarithmic form of the exponential equation 3^7 = (4x+3).​
Ratling [72]

Answer:

546

Step-by-step explanation:

4x3^7=2187

so now its

2187=4x+3

subtract 3 from both sides

now its

2184=4x

divide both sides by 4

546=x

3 0
2 years ago
The perimeter of a rectangular field is 368 yards. If the width of the field is 87 yards, what is it’s length
just olya [345]
This length of the rectangular field is 97 yards because if you double the length and double the width and add them up you get the perimeter (368)
3 0
3 years ago
Read 2 more answers
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