Factor the expression using the GCF.
2 answers:
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Factor the expression 9x+15y using the GCF.
First, let's find the GCF of this expression.
Expressions, like numbers, have GCF's, and we're asked to find it.
The factors of the first term, 9x, are:-
1, x, 3
The factors of the second term, 15y, are:-
1, y, 3, 5
Common factors:-
1, 3
Greatest common factor (GCF):-
3
So we divide both terms by 3:-
3(3x+5y)
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Given:
A set of composite numbers less than 12.
To find:
The set by listing and set builder methods.
Solution:
Composite number: A positive integer is called a composite number if it has at least one divisor other than 1 and itself.
Composite numbers less than 12 are 4, 6, 8, 9, 10.
By using the listing method , the given set can be expression as:
Set = {4, 6, 8, 9, 10}
The numbers 4, 6, 8, 9, 10 are greater than 1, less than 12 and non prime numbers.
By using set builder method, the given set can be expression as:
Set =
Therefore, the list and set builder notation of the given set are {4, 6, 8, 9, 10} and respectively.