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Zarrin [17]
3 years ago
6

What is the formula for combinations

Mathematics
1 answer:
Rashid [163]3 years ago
6 0
<span><span>Note: , where nPr is the formula for permutations of n objects taken r at a time.</span><span>Example:How many different committees of 4 students can be chosen from a group of 15?</span><span>Answer:There are possible combinations of 4 students from a set of 15.</span><span>There are 1365 different committees</span></span>
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What is the value of the expression “eight more than three times the difference of four and a number” when n = 3?
Trava [24]

Answer:

The value of the expression would be 11.

Step-by-step explanation:

3 (4 - n) + 8

When n = 3:

3 (4 - 3) + 8

3 (1) + 8

3 + 8

11

8 0
3 years ago
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Which of the following algebraic steps will solve the equation 5p= -35 and what is the solution
Alex17521 [72]

Answer:

p=-7

Step-by-step explanation:

5p=-35

Divide both sides by 5

5p/5 =-35/5

therefore p=-7

4 0
3 years ago
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Which value is greater than 5/8 or 60 %
antoniya [11.8K]

Answer:

5/8

Step-by-step explanation:

8 0
3 years ago
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there are 30 flowers in a vase 2.5 of flowers are roses. 1/6 of the flowers are daisies. the rest of the flowers are carnations.
tekilochka [14]

Answer:

13 carnations

Step-by-step explanation:

Assuming you meant 2/5 because 2.5 would mean there are more roses in the vase than there are flowers in the vase, heres how to solve this.

Understanding

Each fraction is referring to "flowers" not "remaining flowers" and as such each time we will be comparing to the total.

2/5 of the total flowers are roses. This is written in words as for every 5 flowers two are roses, which means we will multiply 2 by how many sets of five we have in 30 flowers.

(30/5) x 2 =

(6) x 2 = 12 roses

Though with fractions its written as 30/1*2/5 which is the same as (30 x 2)/5

60/5 = 12 roses

Following this logic for every 6 flowers one is a daisy.

30/1 * 1/6 = (30 x 1)/6 = 30/6 = 5 daisies

Because the rest are carnations we want to subtract the amount of daisies and roses from the total amount of flowers to find the remaining flowers.

30 - 5 - 12 = 13 carnations

Hope this helps,

8 0
3 years ago
What is a solid figure with 1 circular base and one curved surface
Novosadov [1.4K]
A solid figure with a circular base and a curved surface would be a <em><u /></em><u />cone.

I hope this helps you! Good luck :)

8 0
3 years ago
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