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oee [108]
3 years ago
5

3 of the digits 0-9 are chosen randomly by a computer what is the probability that it will choose 3 sequential digits?

Mathematics
1 answer:
Sindrei [870]3 years ago
7 0

Answer:

B. 1/15

Step-by-step explanation:

The number of ways in which we can select x elements from a group of n elements is calculated as:

nCx=\frac{n!}{x!(n-x)!}

So, the number of ways in which a computer can select 3 digits is calculated as:

10C3=\frac{10!}{3!(10-3)!}=120

Because there are 10 digits from 0 to 9.

Then, from that 120 options there are 8 that have 3 sequential digits. These options are:

{0,1,2} {1,2,3} {2,3,4} {3,4,5} {4,5,6} {5,6,7} {6,7,8} {7,8,9}

So, the probability that it will choose 3 sequential digits is equal to:

P=\frac{8}{120}=\frac{1}{15}

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Here’s everything you might need to know! hope this helps!!

Square root of 586 definition
The square root of 586 in mathematical form is written with the radical sign like this √586. We call this the square root of 586 in radical form. The square root of 586 is a quantity (q) that when multiplied by itself will equal 586.

√586 = q × q = q2

Is 586 a perfect square?
586 is a perfect square if the square root of 586 equals a whole number. As we have calculated further down on this page, the square root of 586 is not a whole number.

586 is not a perfect square.
Is the square root of 586 rational or irrational?
The square root of 586 is a rational number if 586 is a perfect square. It is an irrational number if it is not a perfect square. Since 586 is not a perfect square, it is an irrational number. This means that the answer to "the square root of 586?" will have an infinite number of decimals. The decimals will not terminate and you cannot make it into an exact fraction.

√586 is an irrational number


Can the square root of 586 be simplified?
You can simplify 586 if you can make 586 inside the radical smaller. We call this process "to simplify a surd". The square root of 586 cannot be simplified.

√586 is already in its simplest radical form.


How to calculate the square root of 586 with a calculator
The easiest and most boring way to calculate the square root of 586 is to use your calculator! Simply type in 586 followed by √x to get the answer. We did that with our calculator and got the following answer with 9 decimal numbers:

√586 ≈ 24.207436874
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