Find the common ratio for this geometric sequence 243, 27, 3

The common ratio is 1/9

Step-by-step explanation:

To find the common ratio, take the second term and divide by the first term

27/ 243

1/9

We can check by taking the third term and dividing by the second

3/27 = 1/9

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

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