3 years ago

The scientific notation 2 �� 10^2 has what value? 100

Mathematics

1 answer:

jolli1 [7]3 years ago

5 0

10^2 = 10 x 10 = 100.

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Number of ways to select 3 books from 13 books for adoption is 286 .

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

A Permutation is an ordered Combination. When the order does matter it is a Permutation. There are basically two types of permutation:

Repetition is Allowed: such as the lock above. It could be "333".

No Repetition: for example the first three people in a running race. You can't be first and second.

Formula is given by:

$nC_r= \frac{n!}{r! (n-r)!}$ , where n is the number of things to choose from, and we choose r of them, no repetitions, order matters. Here , n=13 , r=3.

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3 years ago

The scientific notation 2 ��� 10^2 has what value? 100

The scientific notation 2 �� 10^2 has what value? 100