A circular light fixture has a radius of 20 centimeters. what is the circumference of the light fixture

Step-by-step explanation:

Circumference can be found by multiplying the diameter of the circle by pi.

We are given the radius, which is 20 centimeters. We need the diameter, which is twice the radius.

Substitute the diameter into the formula. There are many ways to calculate circumference, so I included a few options.

1. In Terms of Pi

If we solve in terms of pi, we leave π in the answer.

2. Using 3.14 as Pi

Substitute 3.14 in for pi.

3. Using 3.14159 as PI

Use the pi button on a calculator.

The circumference of the light fixture is 40π, 125.6 cm, or 125.6637061 cm

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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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%