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3 years ago

Find the GCF of 21, 30

Mathematics

2 answers:

sweet-ann [11.9K]3 years ago

5 0

Answer:

The GCF of 21 and 30 is 3.

Step-by-step explanation:

Find the prime factorization of 21

21 = 3 × 7

Find the prime factorization of 30

30 = 2 × 3 × 5

To find the gcf, multiply all the prime factors common to both numbers:

Therefore, GCF = 3

Evgesh-ka [11]3 years ago

3 0

Answer:

Step-by-step explanation:

Factors of 21: 1, 3, 7, 21

Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30

The GCF is the largest factor they both have.

GCF = 3

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3 .. 4) through: (-2,5), slope 2.

ArbitrLikvidat [17]

Answer:

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General Formulas and Concepts:

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y₁ - y coordinate

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Step-by-step explanation:

Step 1: Define

Slope m = 2

Point (-2, 5)

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3 years ago

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ValentinkaMS [17]

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4 years ago

These ordered pairs, {(2,4) (3,6) (4,8) (5,10)}, are a function. True False

ki77a [65]

Answer:

True

Step-by-step explanation:

In order for a relation (a set of ordered pairs) to be considered a function, every value in the domain (the set of all the first numbers in the pair) is associated with one value in the range (the set of all second numbers in the pair). This is easiest to see visually. Our domain is the set {2, 3, 4, 5} and our range is the set {4, 6, 8, 10}, and we can visualize the ordered pair (2, 4) as an "arrow" starting a 2 in the domain and ending at 4 in the range. When seen this way, a relation is a function if every value in the domain only has one arrow coming out of it. We can see from the attached picture that the ordered pairs in the problem are a function, so this statement is true.

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4 years ago