What is the surface area of the cylinder?

Mathematics

1 answer:

LenaWriter [7]3 years ago

7 0

Answer:

D. 578pi

Step-by-step explanation:

Sorry if that's wrong

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Marnie had two pages of math homework and four pages of ELA homework. If each page had 14 questions on it, how many questions di

ahrayia [7]

Answer:

Step-by-step explanation:

First, there are 6 pages of work. then multiply 6 by the number of questions (14)

6x14=84

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2 years ago

Two numbers have a ratio of 4 to 5 and the sum of the numbers is 108 what are the two numbers??

ipn [44]

Answer: 48,60

Step-by-step explanation:

4x+5x=108

9x=108

x=108/9=12

12•4=48

12•5=60

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3 years ago

Juan builds a square dog pen that has an area of 100 square feet. He then builds a second pen that has an area of 49 square feet

EleoNora [17]

Answer:

51%

Step-by-step explanation:

Simple. 100-49=51

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3 years ago

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What is the variance of the following data? If necessary, round your answer to two decimal places. 17, 13, 13, 22, 11, 20

Bond [772]

Variance is the standard deviation squared but we're not going to use that now. Let's first calculate the mean:

mean = (17+13+13+22+11+20)/6 = 16.

Now for each value, let's see how far it is from this mean. We'll square these distances and average them. That's our variance.

17 distance 1 squared = 1
13 distance 3 squared = 9
13 distance 3 squared = 9
22 distance 6 squared = 36
11 distance 5 squared = 25
20 distance 4 squared = 16

Now average these outcomes:

variance = (1+9+9+36+25+16)/6 = 16.

So the variance by coincidence is the same as the mean.

Answer C is your answer.

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3 years ago

3. A balancing balloon toy is in the shape of a hemisphere (half-sphere) attached to the base of a cone. If the toy is 4ft tall

Katen [24]

Answer:

The volume of the toy is $V=5.23\ ft^3$