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4 years ago

You guys know volume of prisms and cylinders?

Mathematics

1 answer:

andrew11 [14]4 years ago

6 0

Multiply the number of cubes in the base 12 by the number of rows 4 find that there are 48 cubes the prism has a volume of 48 cubic units <span>can also find the volume by measuring</span>

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what is the first step in finding the consecutive whole numbers between which square root of 845 is located

marysya [2.9K]

Answer:

The first step to do is trying to find the closest perfect square less than 845, and the closest perfect square more than 845.

In this case 29^2 (841) is the closest perfect square less than 845, and 30^2 (900) is the closet perfect square more than 845.

In conclusion we will say that 29 < √ 845 < 30.

Hope it helps you.

8 0

3 years ago

Suppose that the mean and standard deviation of the scores on a statistics exam are 78 and 6.11, respectively, and are approxima

kiruha [24]

Answer:

0.7422 = 74.22% of scores are above 74.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

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:

$\mu = 78, \sigma = 6.11$

Calculate the proportion of scores above 74.

This is 1 subtracted by the pvalue of Z when X = 74. So

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

$Z = \frac{74 - 78}{6.11}$

$Z = -0.65$

$Z = -0.65$ has a pvalue of 0.2578

So 1-0.2578 = 0.7422 = 74.22% of scores are above 74.

8 0

4 years ago

How to write 9/18 into a equivalent fraction

scoundrel [369]

There are many ways. $\frac{9}{18}$ is actually the same as $\frac{1}{2}$ so anything you do just has to have a numerator exactly half as the denominator. So one that would work is $\frac{18}{36}$ I just doubled both numbers. Other ones would be $\frac{5}{10} and \frac{6}{12}$ all of which the numerator is exactly half the denominator.

7 0

4 years ago

Lily has a bag of 140 marbles the bag has an equal number of green and blue marbles and an equal number of red and yellow marble

Allisa [31]

If there are equal amounts of blue and green marbles, then there are 56 of each; so 112 altogether. That leaves 28 red and yellow marbles; therefore 14 red marbles.

8 0

3 years ago

Jayla buys and sells vintage clothing. She bought two blouses for $25.00 each and later sold them for $38.00 each. She bought th

kompoz [17]

If you’re looking for profit is would be $59.00

7 0

3 years ago