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The square root of 20 can be found using a calculator or by using the approximation method. The exact value is √20 ≈ 4.47.
21 is not a perfect square, and none of its factors (1, 3, 7, 21) are perfect squares either, so √21 is already simplified. The easiest way to compute an approximate value is using a calculator; if you are familiar with calculus, Newton's method works to find an approximation manually. Either way, it is approximately equal to 4.58258.
10.49
plug it into a calculator - (square root symbol, insert value of volume, end parenthesis)/(height value, pi symbol)
You can either express it as a number in a radical - possibly in the hope or expectation that it will cancel out. Or you approximate it using one of several methods. Since it is irrational, you can never write down its value in the form of a ratio, terminating or recurring decimal.
The equation for the area of a circle = pi x radius². First square your radius (multiply it by itself) Then multiply it by pi, which you may use either by using the pi button on your calculator or by using an approximate value of 3.1416 (3.14 will be close).
The square root of 20 can be found using a calculator or by using the approximation method. The exact value is √20 ≈ 4.47.
6*sqrt(3) cannot be simplified. You can find its value using a calculator: it is 10.4 approx.
To calculate the present value of 100 pounds in 1973, you would need to adjust for inflation. Using an inflation calculator, the approximate present value of 100 pounds from 1973 would be around 1,170 pounds in 2021.
The square root of 1175 is approximately 34.27. This can be found using a calculator or by estimating the square root value by breaking down 1175 into its prime factors.
72 = 49 82 = 64 Its closer to 49 so say 7
21 is not a perfect square, and none of its factors (1, 3, 7, 21) are perfect squares either, so √21 is already simplified. The easiest way to compute an approximate value is using a calculator; if you are familiar with calculus, Newton's method works to find an approximation manually. Either way, it is approximately equal to 4.58258.
4.80
6.63
10.49
10.49
How to calculate PVIFA, or Present Value Interest Factor of an Annuity, depends on your particular financial calculator. In general, you input the information you have using the Present Value function and the calculator will use factor tables to generate an answer.