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yulyashka [42]
3 years ago
5

The radius of a circle is 5 inches what ia the area

Mathematics
2 answers:
eduard3 years ago
6 0

Answer:

Area = PI * radius ^2

Area = PI * 5 * 5

Area = 78.5398163397 square inches



Step-by-step explanation:


Crank3 years ago
4 0

Answer:

A = pi * r^2 = pi * 5^2 = 25*pi = 78.54 in²

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A bicycle wheel makes five rotations. The bicycle travels 43.18 ft. Find the diameter of the wheel in inches. Use 3.14 for π.
Law Incorporation [45]

Answer:

Step-by-step explanation:

x=5c, c=3.14d

x=5(3.14)d

d=x/15.7, x=43.18ft

d=43.18/15.7

d=2.75ft

4 0
2 years ago
What number is equal to its opposite of 10-(-7)?
lara [203]

Answer:

10-(-7) is also 17

Step-by-step explanation:

__-(-__)=__+___

- and - = +

So 10+7 = 17

Happy learning!

--Applepi101

4 0
2 years ago
R 3. The mean of 4 numbers is 8. Three of the numbers add up to 22. What is the last number?​
statuscvo [17]
<h2><em><u>Solution</u></em> : </h2>

let the last number be x

we know,

\boxed{mean =  \frac{sum \:  \: of \:  \: all \:  \: observations}{number \:  \: of \:  \: observations} }

So,

\hookrightarrow \: 8 =  \dfrac{22 + x}{4}

\hookrightarrow \: 8 \times 4 = 22 + x

\hookrightarrow \: 32 = 22 + x

\hookrightarrow \: x = 32 - 22

\hookrightarrow \: x = 10

therefore, the last number is 10.

7 0
2 years ago
What is the result when the number 39 is decreased by 3%?
dlinn [17]

Answer:

New value =

39 - Percentage decrease =

39 - (3% × 39) =

39 - 3% × 39 =

(1 - 3%) × 39 =

(100% - 3%) × 39 =

97% × 39 =

97 ÷ 100 × 39 =

97 × 39 ÷ 100 =

3,783 ÷ 100 =

37.83

Step-by-step explanation:

3 0
2 years ago
Is 2.73234(34 repeating) rational or irrational?
Fittoniya [83]

It's rational because of the repeating digits.

We have

<em>x</em> = 2.732<u>343434</u>…

Then

1,000<em>x</em> = 2,732.343434…

and

100,000<em>x</em> = 273,234.343434…

Subtracting these makes the fractional part go away, leaving you with

100,000<em>x</em> - 1,000<em>x</em> = 273,234.343434… - 2,732.343434…

100,000<em>x</em> - 1,000<em>x</em> = 273,234 - 2,732

99,000<em>x</em> = 270,502

<em>x</em> = 270,502/99,000 = 135,251/49,500

which is clearly a rational number.

5 0
2 years ago
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