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r-ruslan [8.4K]
3 years ago
12

Using π = 3.14, what is the circumference of a circle with a diameter of 7 units? Round your answer to the nearest hundredth.

Mathematics
1 answer:
maw [93]3 years ago
8 0

Answer:

21.98

Step-by-step explanation:

c=2*pie*r

    2*3.14*3.5

   21.98

   approximate 22

:)

 

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Find x of the angles are supplementary 3x-2 and 41 degrees ?
tia_tia [17]

Answer:

x = 47

Step-by-step explanation:

3x - 2 + 41 = 180 {Supplementary}

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        3x   = 180 - 39

       3x  = 141

          x = 141/3

x = 47

3 0
3 years ago
StartFraction 4 over 5 EndFraction = StartFraction 9 over x EndFraction?
scZoUnD [109]

Answer:

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Step-by-step explanation:

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15 points. Please answer as soon as possible.
abruzzese [7]

Answer:

A. \frac{(a-b)^{2} +b^{2} }{a^{2}}

Step-by-step explanation:

So to get the area of a square, we need to find the length of one side.  

We know the length of the larger square is a, so the area of the larger cube is a^{2}

We can find the length of a side of the smaller square by using pythagoreans theorem to find the hypotenuse of the triangle formed in the bottom left corner.  The length of one side along the x axis is a - b, and the length of the other side, along the y-axis, is b.

We can plug it into pythagoreans theorem to get

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C = \sqrt{ (a-b)^{2} +b^{2}}

The area of the smaller triangle is C squared to the area of the smaller triangle is

(a-b)^{2} +b^{2}

To get the ratio of the smaller square in comparison to the larger square we divide the area of the smaller square by the area of the larger square.

So the ratio should be

\frac{(a-b)^{2} +b^{2} }{a^{2}}

8 0
3 years ago
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Oksanka [162]

Answer:

I have no idea

Step-by-step explanation:

people are weird

8 0
3 years ago
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tester [92]
There are two answers.
6 and -6
3 0
3 years ago
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