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exis [7]
3 years ago
5

What is the greatest common factor 21,35,49

Mathematics
2 answers:
emmainna [20.7K]3 years ago
8 0
7 is the greatest common factor
Montano1993 [528]3 years ago
8 0

21 = 3 x 7

35 = 5 x 7

49 = 7 x 7

So greatest common factor 21,35,49: 7

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Evaluate 4x2 +3 when x=5
Molodets [167]

Answer:

103

Step-by-step explanation:

We substitute x with 5:

4(5)^2+3

Solve the exponent first:

5^2 = 25

<em>Note: We are using order of operations (consecutively)</em>

  1. <em>Parentheses </em>
  2. <em>Exponents</em>
  3. <em>Multiplication</em>
  4. <em>Division</em>
  5. <em>Addition </em>
  6. <em>Subtraction</em>

Multiply:

25 * 4 = 100

Add:

100 + 3 = 103

Our answer is 103

<em />

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