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Svetradugi [14.3K]
3 years ago
12

Determine if 25 is rational or irrational and give a reason for your answer.

Mathematics
1 answer:
Zina [86]3 years ago
4 0

Answer:

25

25 is not an Irrational number because it can be expressed as the quotient of two integers: 25÷ 1

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Find the volume of the cylinder.
Aneli [31]

Answer:

144π or 452.16 units³

Step-by-step explanation:

The formula for volume of a cylinder is \pi r^2 h. We can use the given values for radius and height to find the volume of the cylinder.

<h3>Finding the Volume</h3>

V=\pi r^2 h\\V=\pi6^2(4)\\V=\pi36(4)\\V=144\pi \ OR\ 452.16

The volume of the cylinder is 144π or 452.16 units³.

4 0
2 years ago
Complete the equivalent ratio = 9/4 = 81/?
Nimfa-mama [501]

Answer:

81/36

Step-by-step explanation:

81/9 is 9

9 times 4 is 36

6 0
2 years ago
Read 2 more answers
There are 4 triangles and 20 squares what is the simplest ratio of triangles to squares
Svetllana [295]

Answer: 4:20 but that simplified would be 1:5

Triangles to squares

8 0
2 years ago
There is a language with 12 distinct letters. How many words that are less than four letters long can possibly be formed? (Assum
allochka39001 [22]

Answer:

1884

Step-by-step explanation:

1)If you hear the condition "less than four letters" it means that each word can consist of 3,2 or 1 letter. Firstly, consider the easiest situation with the word from one letter. There are 12 letters, so there are 12 words from one letter.

Then the words from two letters. The first letter of such a word can be chosen in 12 means(because 12 letters are available), then the second letter can be chosen in 12 means too. 12*12=144 words with 2 letters. (Multiplying, not adding, because each two words form one combination).

Then for the words from three letters, use the same rule, 12 means for the first letter, 12 means for the second letter, 12 means for the third letter. 12*12*12=1728 words.

Having particular words from 1,2,3 letters add them to get total quantity of words: 12+144+1728=1884words,that is the answer.

8 0
3 years ago
Find the arc length along a circle of radius 10 subtended by an angle of 215 degrees
natka813 [3]

Answer:

arc = 25.29

Step-by-step explanation:

first find the circumference:

C = 2r(Pi) = 2(10)(3.14) = 62.8

since subtended, then we're looking for these opposite angle of 215 degrees:

360 - 215 = 145 degrees

62.8/360 = 0.1744 per degree

0.1744 x 145  = 25.29

7 0
3 years ago
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