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Aleonysh [2.5K]
3 years ago
5

A circle has a circumference of 452.16452.16 units. What is the radius of the circle?

Mathematics
1 answer:
ella [17]3 years ago
6 0

Answer:

72 units

Step-by-step explanation:

A circle has a circumference of 452.16

The formula for circumference of circle = 2\pi r

Where r is the radius of circle

The approximate value of pi = 3.14

Given circumference C= 452.16

C = 2\pi r

452.16 = 2(3.14)r

452.16 = (6.28)r

Divide both sides by 6.28

r = 72

So radius of the circle 72 units


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3 years ago
Giving brainlist pls help Complete the table.
elena-s [515]

Answer:

(Since 3.14 seems more reliable, I'll use that for all four instead)

A: 17.6 ft

B: 81.6 mm

C: 9 cm

D: 12 in

Step-by-step explanation:

A:

2(2.8)*3.14\\5.6 * 3.14\\17.584 approx. = 17.6

B:

2(13)*3.14\\26 * 3.14\\81.64 approx. = 81.6

C:

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D:

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4 0
2 years ago
What is the product of (X4/3)(X2/3) ?
katrin [286]
Hi, the answer to this would be x6/9. I'm assuming the x4/3 and x2/3 are fractions and the x's aren't exponents. Now how I got x6/9 is shown here.

1st Step: Started off by regrouping the terms
1/3x3 x^4x^2

2nd Step: we can easily simplify 3x3 to just 9. And now we're left with 1/9x^4x^2

3rd Step: Now we can simplify the 1/9 to just x^4x^2/9

4th Step: Now we can use the product rule which is simple. So We add the exponents and simplify it to just one exponent. So x4+2=6 that simplifies to just x^6.

Final Answer: x^6/9.
Hope this helped you :)
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Step-by-step explanation:

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