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____ [38]
3 years ago
9

A square patio has an area of 220 square feet. Approxmately how long is each side of the patio (to the nearest hundredths)

Mathematics
1 answer:
Tanzania [10]3 years ago
3 0

This is a square root problem since the patio is square.

A of a square is L x W or L^2 or W^2 - it's all the same.

So find the square root of 220 feet.

14.8323 We are to round to nearest hundreth which is the second position right of decimal. Look at the number to the right of that position.

It is a 2. So we do not round the number up.

14.83 is the rounded sq. ft of each side.

Check it!

14.83^2 = 219.92 Because we rounded, this number is not exact, but close.

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Answer:B & E

Step-by-step explanation:

We can first rearrange the function to isolate y. Then, we can find the slope as the function is in the form y=mx+b.

3x-4y=7\\-4y=-3x+7\\y=\frac{3}{4}x-\frac{7}{4}

Since parallel lines have the same slope, we can put the slope of 3/4 into the point slope form to get the answer.

<em>For reference, the point-slope form is </em>y-y_1=m(x-x_1)

y+2=\frac{3}{4}(x+4)\\y+2=\frac{3}{4}x+3\\y=\frac{3}{4}x+1

The first line is found in option E, so option E is one of the correct options.

We can also move the x to the other side, as two of the 5 options have both variables on the left (B and C).

-\frac{3}{4}x+y=1

If we multiply the whole equation by -4, we can get rid of the fraction.

-4(-\frac{3}{4}x+y)=-4(1)\\3x-4y=-4

Hence, option B is also correct.

7 0
1 year ago
A circular quilt is made from 113.04 square feet of fabric. How much trim is needed to go around it’s edge?
erik [133]

Hey there!

We are looking for the circumference of the circle, which is the distance around it. We are given the area, which is the radius squared times pi.

First, we need to undo the area to find our radius.

113.04/3.14=36

We square root this to find the radius.

√36=6

Our radius is six. To find the circumference, we need to multiply the diameter by pi. The diameter is twice the radius.

6*2=12

12*3.14=37.68

Therefore, we will need 37.68 feet of trim to around the edge of the quilt.

I hope this helps!

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aev [14]

Answer:

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Step-by-step explanation:

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Grouping like terms, 3 x - 2 x + 12 = (3 x - 2 x) + 12:

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