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serious [3.7K]
2 years ago
8

Please need help on this

Mathematics
1 answer:
Marta_Voda [28]2 years ago
4 0

9514 1404 393

Answer:

  π square inches

Step-by-step explanation:

The area of the whole circle is ...

  A = πr²

  A = π(2 in)² = 4π in²

A 90° sector is 1/4 of the circle, so its area is ...

  (1/4)(4π in²) = π in²

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If 0.142857142857......is expressed in the form m/n, then what is the value<br>of (2m + n)?​
frosja888 [35]

Answer:

The value will be: 1,285,713

Step-by-step explanation:

We have the number:

N = 0.142857...

Such that we have 6 decimals after the decimal point that repeat infinitely.

Then let's start by multiplying our number by 1,000,000 (same number of zeros as decimals after the decimal point)

Then we get:

1,000,000*N = 142,857.142857...

Now let's subtract N from both sides:

1,000,000*N - N =  142,857.142857... - 0.142857...

999,999*N = 142,857

Now let's isolate N

N = 142,857/999,999

Here is our number expressed in the form m/n, where:

m = 142,857

n = 999,999

Then the value of (2*m + n) is:

(2*142,857 + 999,999) = 1,285,713

5 0
3 years ago
1025 + 503 – 1412 – 7
Andreyy89

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Step-by-step explanation:

4 0
3 years ago
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Find the product 3 • ( -7 )
Vera_Pavlovna [14]

Answer:-21

Step-by-step explanation:

3•(-7)

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4 0
3 years ago
Was a major accomplishment of both Tutankhamun and Rameses II.<br><br><br><br><br> Plz help
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Answer:

AA similarity. The angles in both are the same.

Edit: I don't know if you need this, but a major accomplishment of King Tut and Ramses was that they encouraged the following of ancient religious beliefs among the Egyptian people .

Hope that this helps!

6 0
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Step-by-step explanation:

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