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DerKrebs [107]
3 years ago
6

Circumference of a circle with radius 10 in

Mathematics
2 answers:
klemol [59]3 years ago
7 0
The answer is C ≈ 62.83
azamat3 years ago
5 0
2*pi*10=62.83 is certainly your answer
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If 8 family members choose to play "Secret Santa," how many different ways can the names be paired?
viktelen [127]

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300,000,000 or three hundred million

Step-by-step explanation:

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2 years ago
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The expression 6a-14-a+7 simplifies to
Aloiza [94]
The answer to this is 5a-7
8 0
2 years ago
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Solve for x and y:<br> 3/x -1/y =13/10<br> 1/x + 2/y =9/10
harkovskaia [24]

Answer:

  (x, y) = (2, 5)

Step-by-step explanation:

I find it easier to solve equations like this by solving for x' = 1/x and y' = 1/y. The equations then become ...

  3x' -y' = 13/10

  x' +2y' = 9/10

Adding twice the first equation to the second, we get ...

  2(3x' -y') +(x' +2y') = 2(13/10) +(9/10)

  7x' = 35/10 . . . . . . simplify

  x' = 5/10 = 1/2 . . . . divide by 7

Using the first equation to find y', we have ...

  y' = 3x' -13/10 = 3(5/10) -13/10 = 2/10 = 1/5

So, the solution is ...

  x = 1/x' = 1/(1/2) = 2

  y = 1/y' = 1/(1/5) = 5

  (x, y) = (2, 5)

_____

The attached graph shows the original equations. There are two points of intersection of the curves, one at (0, 0). Of course, both equations are undefined at that point, so each graph will have a "hole" there.

3 0
3 years ago
My last problem and I'm stuck please help!!​
WITCHER [35]
Answer is C= -125,125
4 0
3 years ago
Can anyone help me with inverse function please? ​
12345 [234]

{h}^{ - 1} oh(x) = x \\  {h}^{ - 1} (4x + m) = x \\ 2k(4x + m) +  \frac{5}{8}  = x \\ 8kx + 2km +  \frac{5}{8}  = x

k and m must satisfy 8k = 1 mean k = ⅛

and 2km+⅝=0 mean m = -5/2

4 0
3 years ago
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