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blagie [28]
3 years ago
13

The ratio of surface areas of 2 similar cones is 16:49. What is the ratio of volumes of similar cones?

Mathematics
1 answer:
Talja [164]3 years ago
4 0

First, you need to get their square roots.

4:7

Next, you need to get the cube of their square roots so,

4^3:7^3

The answer is

64:343

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In 2010, the population of a city was 241,000. From 2010 to 2015, the population grew by 5%. From 2015 to 2020, it fell by 4%. T
lawyer [7]

Answer:

242, 900 people

Step-by-step explanation:

To begin, it says that the population grew by 5%.

(241000)(1.00 + 0.05) = <em>population of the city in 2015</em>

(241000)(1.05) = 253050

253050 is the population of the city in 2015. From 2015 to 2020 it fell four percent.

(253050)(1.00 - 0.04) = <em>population of the city in 2020</em>

(253050)(0.96) = 242928

242928 is the exact population of the city. However, it says to round to the nearest hundred. Since 28 is less than 50, then it would round down to 900.

Therefore, the answer would be 242, 900 people.

4 0
2 years ago
How do I solve for constant rate of change
barxatty [35]

You use the slope formula, (y2-y1/x2-x1)

6 0
3 years ago
Following are heights, in inches, for a sample of college basketball players. 78 83 82 78 78 80 81 79 79 83 77 78 84 82 80 80 82
blagie [28]

The mean height of the basketball players is 80.3 inches

For given question,

we have been given the list of heights, in inches, for a sample of college basketball players.

We need to find the mean height of the basketball players.

We know that, for given sample of data

mean = sum of all observations ÷ total number of observation

First we find the sum of given heights.

78 + 83 + 82 + 78 + 78 + 80+ 81 +79+ 79 +83+ 77 +78+ 84+ 82+ 80+ 80 +82+ 84+78+ 80 = 1606

Total number of observations = 20

Using the formula of mean,

⇒ mean height = 1606/20

⇒ mean height = 80.3 inches

Therefore, the mean height of the basketball players is 80.3 inches

Learn more about the mean here:

brainly.com/question/6813742

#SPJ4

3 0
1 year ago
Helen had $330 in her savings account when Vince opened a savings account with zero dollars.• Helen deposited $30 into her accou
geniusboy [140]

Answer:

Step-by-step explanation:

C

3 0
2 years ago
16 cm<br> 20 cm<br> 15 cm<br> 20 cm<br> find the volume of the prism
vichka [17]

Answer:

267.

Step-by-step explanation:

8 0
2 years ago
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