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ziro4ka [17]
3 years ago
9

If the area of a circular cookie is 28.26 square inches, what is the APPROXIMATE circumference of the cookie? Use 3.14 for π.

Mathematics
2 answers:
Vlad1618 [11]3 years ago
4 0

Answer:  approx 18.8 in

Step-by-step explanation:

The area of the circle is

S=π*R²   (1)   and the circumference of the circle is C= 2*π*R      (2)

So using (1)  R²=S/π=28.26/3.14=9

=> R= sqrt(9)

R=3 in

So using (2) calculate C=2*3.14*3=18.84 in or approx 18.8 in

Lostsunrise [7]3 years ago
3 0

Answer:

Step-by-step explanation:

c= 2(pi)r

Area = (pi)r^2

28.26 = (pi) r^2

r =\sqrt{9} = 3

circumference = 2 (3.14) (3)

                        = 18.8 in

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The rate of change between 1990 and 1999 is 15.22

Step-by-step explanation:

The rate of change in this case is given by change in quantity divided by change in time

So,

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Hence,

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Keywords: Rate of change, median

Learn more about median at:

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