3 years ago

1) 615 Is Rational or irrational

Mathematics

2 answers:

zmey [24]3 years ago

8 0

Answer:

irrational, since it's not a perfect square it's irrational

Step-by-step explanation:

evablogger [386]3 years ago

6 0

Answer:

it is an irrational number

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A bag contains 13 pieces of candy. In how many ways can five pieces be selected?

Whitepunk [10]

Five pieces can be selected in 1287 ways

Step-by-step explanation:

When the selection has to be made without considering the order of selection, combinations are used.

The formula for combination is:

$C(n,r) = \frac{n!}{r!(n-r)!}$

Here

Total candies = n = 13

Candies to be selected = r = 5

Putting the values in the formula

$C(13,5) = \frac{13!}{5!(13-5)!}\\=\frac{13!}{5!8!}\\=1287\ ways$

Five pieces can be selected in 1287 ways

Keywords: Combinations, selection

Learn more about combinations at:

#LearnwithBrainly

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Natali [406]

Answer:

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Step-by-step explanation:

25-5 is 20 and 20 divided by 4 is 5

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Help its pi, ill give brainiest to the first answer show work please :)

saw5 [17]

Answer:

16m

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I need help with this question really quick!!!

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Np buddy its B. Hope u get a good grade

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