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RoseWind [281]
3 years ago
15

What is the circumference of a round pizza with an area of 36 square inches ? step by step like can anyone explain to me in word

s
Mathematics
1 answer:
nadya68 [22]3 years ago
3 0

Answer:

The circumference of the round pizza is 21.26in

Step-by-step explanation:

To solve this exercise we first have to calculate the radius of the circle, for this we will use the formula of area of ​​a circle and we will clear the radius

a = area = 36in²

r = radius

π = 3.14

a = π * r²

we clear r

r = √(a/π)

now we replace the known values

r =  √(36in²/3.14)

r = √(11.46in²)

r = 3.385 in

now we use the formula to calculate the circumference of a circle

c = π * 2r

c = 3.14 * 2 *  3.385 in

c = 21.26in

The circumference of the circle is 21.26in

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If k is a positive integer and n = k(k + 7), is n divisible by 6 ? (1) k is odd. (2) When k is divided by 3, the remainder is 2.
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2.) Yes

Step-by-step explanation:

Given that

n = k(k + 7)

If k is a positive integer and n = k(k + 7), is n divisible by 6 ?

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(2) When k is divided by 3, the remainder is 2. That is,

Let k = 5

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And 60 is divisible by 6.

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