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Sergio039 [100]
3 years ago
10

The radius of a cylinder construction pipe is 2 feet. If the pipe is 21 feet long, what is its volume?

Mathematics
1 answer:
DaniilM [7]3 years ago
3 0

Answer:

The volume of a cylinder equals

PI * radius^2 * height

Volume = PI * 2^2 * 21

Volume = 3.14159 * 4 * 21

Volume = 3.14159 * 4 * 21

equals 263.89 cubic feet

Step-by-step explanation:

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Suppose you have a bag containing 2 black marbles and 3 red marbles. You reach into the bag, select a marble, see what color it
TiliK225 [7]

Answer:

\dfrac{9}{25}

Step-by-step explanation:

Given that the bag contains black and red marbles.

Number of black marbles in the bag = 2

Number of red marbles in the bag = 3

Total number of marbles in the bag = Number of black marbles + Number of red marbles = 2 + 3 = 5

Let us have a look at the formula for probability of an event E, which can be observed as:

P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}

P(\text{First red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5 }

Now, the marble chosen at first is replaced.

Therefore, the count remains the same.

P(\text{Second red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5}

Now, the <em>required probability</em> can be found as:

P(\text{First red marble})\times P(\text{Second red marble}) = \dfrac{3}{5}\times \dfrac{3}{5} = \bold{\dfrac{9}{25} }

3 0
3 years ago
Is {(2, –2), (1, 5), (–2, 2), (1, –3), (8, –1)} a function
NISA [10]

Answer:

No

Step-by-step explanation:

The set contains 2 different ranges for 1 domain. In this case, X = 1 returns 5 and -3, meaning it cannot be a function.

4 0
3 years ago
How do you simplify 33xy/3x?​
Llana [10]

Answer:

11y

Step-by-step explanation:

33xy/3x

33/3=11

x/x=1

so we have

33xy/3x=11y

5 0
3 years ago
Read 2 more answers
Please help!!!<br> I need help finding the answer.
iogann1982 [59]

Answer:

2nd option

Step-by-step explanation:

The shaded area = outside area - inner area

                           = x² - (x - 6)² ← expand using FOIL

                         = x² - (x² - 12x + 36) ← distribute parenthesis by - 1

                        = x² - x² + 12x - 36 ← collect like terms

                        = 12x - 36

6 0
3 years ago
The Math Club is raising money so they can attend a local competition next month. They have already raised $125 and they are sel
prisoha [69]

Answer: 100 candy bars

Step-by-step explanation:

You did not include the question but judging by the progression I can assume that the question is along the lines of how many candy bars they will need to sell to reach their target.

You did not include the amount they have to raise as well so let us assume that number is $375.

Assuming they have to raise $375 and they have already raised $125, the amount left to be raised is:

= 375 - 125

= $250

With each candy bar selling at $2.50, the number of candy bars they will need to sell is:

= 250/ 2.50

= 100 candy bars

<em>You should use this process to find the answer to your question. </em>

3 0
3 years ago
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