Skylar has pool toys shaped like a sphere with a radius of 2 inches. The toys fill with water and she has 12 toys total. How many cubic inches of water is needed to fill each toy?

33.51 cubic inches of water are needed to fill each toy

Step-by-step explanation:

Let's recall that the formula of the volume of a sphere:

Volume = 4/3 * π * r³

Replacing with the values we have:

Volume = 4/3 * 3.1416 * 2³

Volume = 4/3 * 3.1416 * 8

Volume = 33.51 inches³

33.51 cubic inches of water are needed to fill each toy

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

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step-by-step explanation: