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4 years ago

These cylinders are similar. Find the surface area of the smaller cylinder. Round to the nearest tenth.

Mathematics

1 answer:

Ratling [72]4 years ago

6 0

Answer:

Surface Area = 6.28 x 5.223 x 3 + 6.28 x 10.446 = 164 cm^2

Step-by-step explanation:

A=2πrh+2πr2

When we divide 245 by 1.5 we find 164cm^2

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A florist has 96 white roses, 72 red roses, and 108 pink roses. If all the roses are used, what is the greatest number possible

natali 33 [55]

<h3>The greatest number possible of identical bouquets that can be made is 12</h3>

<em><u>Solution:</u></em>

Given that,

A florist has 96 white roses, 72 red roses, and 108 pink roses

All the roses are used, we have to find the greatest number possible of identical bouquets that can be made

Therefore, we have to find the greatest common factor (GCF) of 96, 72 and 108

<u>GCF of 96, 72 and 108</u>

The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

The factors of 96 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96

The factors of 108 are: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108

Then the greatest common factor is 12

Thus, greatest number possible of identical bouquets that can be made is 12

7 0

4 years ago

A survey found that 31% of all teens buy soda (pop) at least once each week. Seven teens are randomly selected. The random varia

kumpel [21]

Answer:

The value of n is 7.

Step-by-step explanation:

For each teen, there are only two possible outcomes. Either they buy soda at least once each week, or they do not. Since they were selected randomly, the teens are independent of each other, which means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In the binomial distribution, we have that n is the size of the sample. In this question, seven teens are randomly selected, which means that the value of n is 7.

7 0

3 years ago

There were 27,000 people at a ball game in Los Angeles. The day's receipts were $204,000. How many people paid $13 for reserved

Studentka2010 [4]

21000 people paid for general admission and 6000 paid for reserved seats. This is solved by making 2 equations. Out of 27000 people who were at game, x of them paid for general admission and y for reserved seats, thus
x + y = 27000
As said, daily receipts were 204000$. As reserved seat is 13$, y of them gave 13$ each (y*13$) and x of them gave 6 for general admission(x*6) and those two add up and we get second equation
13y + 6x = 204000.
This can be solved by transforming first equation into x = 27000 - y and then replacing the x in second.
13y + 6*(27000 - y) = 204000
13y + 162000 - 6y = 204000
7y = 42000
y = 6000
x + 6000 = 27000
x = 27000 - 6000 = 21000

5 0

3 years ago

Please help me find the area

aniked [119]

Answer:

7.2ft

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The number of volunteers to walk dogs at the local animal shelter last year was 20 this year the number of volunteers has risen

Alex73 [517]

There is 150% increase in the number of volunteers.

Step-by-step explanation:

Given,

Old number of volunteers = 20

New number of volunteers = 50

Change = New value - Old value

Change = 50 - 20 = +30

The positive sign indicates the increase.

Percent increase = $\frac{Change}{Old\ value}*100\\$

$Percent\ increase=\frac{30}{20}*100\\\\Percent\ increase=\frac{3000}{20}\\\\Percent\ increase=150\%$

There is 150% increase in the number of volunteers.

Keywords: percentage, subtraction

Learn more about percentages at:

#LearnwithBrainly

3 0

4 years ago