Help me plz thx so much

Mathematics

1 answer:

rewona [7]3 years ago

8 0

She paid $30 bucks total.

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Un número aumentado en 9 equivale a 33. Hallar el número

Taya2010 [7]

Answer:

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Step-by-step explanation:

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3 years ago

The average weight an NFL player is 245.7 pounds with standard deviation of 34.5 pounds but probability distribution of the popu

Dvinal [7]

Answer: For part I, the probability is 36.69% that the average weight will be less than 234.

To find the percents for each one, you need to find the z-score and use a normal distribution table. A z-score is the number of standard deviations above or below the mean.

For 234, the z-score would be: (234 - 245.7) / 34.5 = -0.34 which corresponds to a percent of 36.69%.

For that last 2 parts, you follow the same plan. However, you will find two different percents. You will have to subtract them to find the percent between them.

For Part II, you should get 6.85%

For Part III, you should get 10.37%.

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3 years ago

If the prisms below are similar what is the ratio of the surface area of the smaller prism to the surface area of the larger pri

Ronch [10]

The ratio between the surfaces areas of the two prisms is equal to 6.25.

<h3>How to get the ratio of the surface areas?</h3>

The ratio between the volumes of the prisms is:

$R_v = \frac{375 in^3}{24 in^3} = 15.625$

This number is equal to the cube of the scale of dilation applied to the dimensions of the smaller prism, so the scale factor is:

$\sqrt[3]{15.625} = 2.5$

And the ratio between the areas should be the square of the scale factor, then we will have that the ratio between the surface areas of the two prisms is:

$2.5^2 = 6.25$