3 years ago

What is the circumference of a circle that has the radius of 3cm

Mathematics

1 answer:

dexar [7]3 years ago

5 0

Step-by-step explanation:

Circumference of a circle is 2piR

Here R is 3 cm

So C=2pi(3)

C=6pi cm

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2 years ago

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The mean of the probability distribution is given by the expected value given by

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$Var(x)=(x-\bar{x})^2p(x) \\ \\ =(0-0.56)^2(0.53)+(1-0.56)^2(0.40)+(2-0.56)^2(0.05)\\+(3-0.56)^2(0.02) \\ \\ =(-0.56)^2(0.53)+0.44^2(0.40)+1.44^2(0.05)+2.44^2(0.02) \\ \\ =0.3136(0.53)+0.1936(0.40)+2.0736(0.05)+5.9536(0.02) \\ \\ =0.166208+0.07744+0.10368+0.119072=0.4664$

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2 years ago

What is the circumference of a circle that has the radius of 3cm​

What is the circumference of a circle that has the radius of 3cm