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Lilit [14]
2 years ago
15

A solid cylinder has a radius of 2 cm and a height of 7 cm. It has a density of 3.1 grams

Mathematics
1 answer:
timurjin [86]2 years ago
5 0

Answer:

Step-by-step explanation:

The first thing you need to do is find the volume.

r = 2cm

h = 7 cm

pi = 3.14

V = pi*r^2 *h

V = 3.14 * 2^2 * 7

V = 3.14 * 4 * 7

V = 87.92 cm^3

Next find the mass using the density formula

Density = mass / volume

Density = 3.1 grams / cm^3

Volume = 87.92 cm^3

3.1 = m / 87.92               Multiply both sides by 87.92

3.1 * 87.92 = m

m = 272.55

Note:

Technically There should be no decimal places. 3.1 is only 2 significant digits. The answer should be 270 grams.

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2 years ago
A liquid shake is being served in a cone shaped container with a base diameter of 8 centimeters and a height of 22 centimeters.
zhuklara [117]

Answer:

The container weighs approximately 28 g.

Step-by-step explanation:

In order to solve this problem we first need to calculate the volume of the container, since it's shaped like a cone we must use the following formula:

volume container = (pi*r²*h)/3

Applying the data from the problem:

r = d / 2 = 8/2 = 4 cm

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volume container = (pi*16*22)/3

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Since the density is 0.82 g/cm³, we can find the mass of the shake by using the following formula:

density = mass / volume

shake mass = density*volume = 0.82*368.6135 = 302.26307 g

Since the container plus shake weighs 330 grams, then the container alone weighs:

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The container weighs approximately 28 g.

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3 years ago
What is the measure of IL?
svetoff [14.1K]

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In a histogram, the proportion of the total area which must be to the left of the median is:
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Answer:

A. exactly 0.50

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We have been given a statement. We are asked to choose the correct option about given statement.

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