Suppose the radius of a circle is 2 units. What is its circumference?

4π

Step-by-step explanation:

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Well, the formula for the circumference of a circle is 2πr. If the radius of the circle is 2u, then the circumference is 2π2=4π

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12.56 units

Step-by-step explanation: To find the circumference of a circle, start with the formula for the circumference of a circle which is shown below.

Notice that here, the radius of our circle is 2 units. So we can plug in 2 for r in the formula. So we have (2)(π)(2) which is equal to 4π units.

Remember that π is approximately equal to 22/7 or 3.14 so we can estimate the value of the circumference by plugging in 3.14 for π.

So we have (4)(3.14) which is equal to 12.56 units.

So the circumference of the circle is approximately equal to 12.56 units.

required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%