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Morgarella [4.7K]
3 years ago
8

HELP ME PLS ITS BEEN AN HOUR LUV U GUYS <33

Mathematics
1 answer:
Setler [38]3 years ago
3 0

Answer:

19.6 cubic centimeters

Step-by-step explanation:

The ratio of two similar 3D figures' volumes is equivalent to the ratio of their corresponding lengths (whether it's width, height, length, radius, etc) cubed.

Here, we know the cones are similar, and we know the smaller radius is 2 and the larger radius is 3. Then the ratio of the volume of the smaller one to the volume of the larger one is (2/3)^3=8/27.

We also know the actual volume of the larger cone is 66. So, if x is the volume of the smaller cone, we have the proportion:

x / 66 = 8 / 27

Cross-multiply:

27x = 66 * 8 = 528

Divide by 27:

x = 528/27 ≈ 19.6

The answer is thus 19.6 cubic centimeters.

<em>~ an aesthetics lover</em>

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Answer:

b) Chemistry

Step-by-step explanation:

To compare both scored we need to standardize the scores using the following equation:

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Where x is the score, m is the mean and s is the standard deviation. So, 82 on chemistry is equivalent to:

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Because the mean of the scores on the chemistry final exam is equal to 75 and the standard deviation is 15

At the same way, 80 on Calculus is equivalent to:

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Now, we can compare the values. So, taking into account that -0.2308 is lower than 0.4667, we can said that the student do better in Chemistry.

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3 years ago
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GrogVix [38]
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3 years ago
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Answer:

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4 years ago
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9514 1404 393

Answer:

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Step-by-step explanation:

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where r is the radius, or half the diameter.

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