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pickupchik [31]
3 years ago
10

What is the probability that in a class of 20 students, 2 of them will have the same birthday?

Mathematics
1 answer:
earnstyle [38]3 years ago
8 0
There would be a 10% chance that they would have the same birthday
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When placed in the box below, what expression will complete an example of the commutative property of addition 7(2+9)= ?
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The expression for 7(2+9) IS A(B+C) which is distributive property of addition over multiplication.

Only two arithmetic procedures are subject to the commutative property: Multiplication and Addition

 A + B = B + A Which is Commutative property of addition

A.B = B.A, which is a commutative property of multiplication.

Distributive property is A(B+C) =AB+AC

The operation on numbers that are available in brackets can be distributed for each number outside the bracket, according to the distributive property. It is one of the mathematical properties that is used the most. Commutative and associative qualities are the other two important features.

from the given data 7(2+9) =7*2+7*9

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Hence, the expression for commutative property of addition is A(B+C) = AB+AC.

To learn more about commutative property, visit

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