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SOVA2 [1]
3 years ago
13

Please please help meee

Mathematics
1 answer:
e-lub [12.9K]3 years ago
4 0

The perimeter of the given quarter circle is 24.997 cm.

Step-by-step explanation:

Step 1:

The perimeter of a circle is 2π times its radius.

The given figure is only a quarter circle so we divide the entire circle's perimeter by 4 to get this figures circular portions perimeter and add it with the lengths of the two sides of the quarter circle.

The perimeter of a circle = 2 \pi r.

Step 2:

The given circle has a radius of 7 cm and we take \pi = 3.142.

The perimeter of the full circle = 2 (3.142)(7) = 43.988.

The perimeter of the circular portion = \frac{43.988}{4} = 10.997 cm.

The two sides measure 7 cm each.

So the perimeter of the given figure = 10.997 + 7 + 7 = 24.997 cm.

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Step-by-step explanation:

They both make up 90 degree angle.

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3 years ago
Read 2 more answers
What is 1/6d+2/3 = 1/4(d-2)
GenaCL600 [577]
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First, simplify \frac{1}{6} d to \frac{d}{6} / Your problem should look like: \frac{d}{6} + \frac{2}{3} = \frac{1}{4} (d - 2)
Second, simplify \frac{1}{4} (d - 2) to \frac{d-2}{4} / Your problem should look like: \frac{d}{6} + \frac{2}{3} = \frac{d-2}{4}
Third, multiply both sides by 12 (the LCM of 6,4) / Your problem should look like: 2d + 8 = 3(d - 2)
Fourth, expand. / Your problem should look like: 2d + 8 = 3d - 6
Fifth, subtract 2d from both sides. / Your problem should look like: 8 = 3d - 6 - 2d
Sixth, simplify 3d - 6 - 2d to d - 6 / Your problem should look like: 8 = d - 6
Seventh,add 6 to both sides. / Your problem should look like: 8 + 6 = d
Eighth, simplify 8 + 6 to 14 / Your problem should look like:14 = d
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3 0
3 years ago
An estate of $613,000 is left to three siblings. The eldest receives 2 times as much as the youngest. The middle sibling receive
Assoli18 [71]

Answer:

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Explanation:

We can show the siblings like this:

e=2y                  (eldest)

m=16000+y       (middle)

To find the value of y, or the youngest sibling, we use an equation.

2y+16000+y+y=613000

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Subtract 16000 on both sides:

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The youngest received $149250.

Knowing this, we can plug in the numbers into the original formulas:

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y=149250                                      ...or $149250

Add all those numbers up, and you reach $613000.

7 0
3 years ago
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