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Alinara [238K]
2 years ago
13

Evaluate C(9, 9). A. 1 B. 0 C. 9

Mathematics
1 answer:
igor_vitrenko [27]2 years ago
3 0

the formula is

n!/(n-k)!)k!

remember 0! = 1

so

9!/(9!-0!)9! = 9!/9! = 1

so

B. 1

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nordsb [41]

<em>Answer:</em>

<em>C = 12.88</em>

<em>Step-by-step explanation:</em>

<em>If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by </em><em>π</em><em> to get the diameter.</em>

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2 years ago
What's the next number 2 7 8 3 12 9
puteri [66]

The <em>correct answer</em> is:

4.

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Taking these numbers as groups of three, we have 2, 7, 8; 3, 12, 9.

In the first group, we can see that we first add 5 and then add 1.

The next group seems to start from the next consecutive number. That is, the first group starts with 2, and the next group starts with 3. The next terms in the second group are found by adding 5 to the second term of the first group (12 = 7+5) and then adding 1 to the third term of the first group (9=8+1); this is because we added 5 and added 1 previously.

Following this pattern, the next group of three would start from the next consecutive number up, 4. The next two terms would be 17 (12+5=17) and 10 (9+1=10).

7 0
3 years ago
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