The larger cube’s volume is about blank cm

Mathematics

1 answer:

padilas [110]3 years ago

3 0

Volume = mass divided by density.

You are given the mass and density for the smaller cube so you can calculate it's volume:

Volume = 20 / 7.87 = 2.541 cubic cm's.

Now you are told the larger cube has 2 times the volume:

Volume of larger cube = 2.541 x 2 = 5.08 cubic cm's.

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Consider a value to be significantly low if its z score less than or equal to minus−2 or consider a value to be significantly hi

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Answer:

Test scores of 10.2 or lower are significantly low.

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Step-by-step explanation:

Z-score:

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 20.6, \sigma = 5.2$