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Natalija [7]
2 years ago
10

If there are12 books on a rack,a person has to choose 5books.

Mathematics
1 answer:
mojhsa [17]2 years ago
3 0

Answer:

330

11 choose 4

=\frac{11!}{4!\left(11-4\right)!}\\= 330

Step-by-step explanation:

You might be interested in
Find a formula for geometric series that begins with 28, 98, 343,...​
otez555 [7]

Answer:

Step-by-step explanation:

In a geometric series, the successive terms differ by a common ratio which is determined by dividing a term by the preceding term.

The formula for determining the nth term of a geometric progression is expressed as

Tn = ar^(n - 1)

Where

a represents the first term of the sequence.

r represents the common ratio between successive terms in the sequence.

n represents the number of terms in the sequence.

From the seies shown,

a = 28

r = 98/28 = 343/98 = 3.5

The formula representing the nth term of the given sequence would be expressed as

Tn = 28 × (3.5)^(n - 1)

6 0
3 years ago
What equals 39 by multiplying 10 ?
qwelly [4]

You can just do the inverse operation. 39 divied by 10 = 3.9

so 3.9 *10 =39

hope it helped

5 0
3 years ago
Will give brainliest
Mariana [72]

Answer: C) Lindsey spent a total of $47 on her mother for her birthday. She bought a $35 box of chocolates and some balloons for $4 each. What is x, the number of balloons that Lindsey bought for her mother's birthday?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PLEASE MATH HELP WILL GIVE BRAINLIEST
hram777 [196]
The answer  is 32.72 degree.
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7 0
3 years ago
Help me asap please
lapo4ka [179]

6^4

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8 0
3 years ago
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