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3 years ago

What is the GCF of 28 and 42?

2 answers:

7 0

The best thing to do here is simply to list all of the actors for each number and this will let you see the GCF, 28- 1,2,4,7,14,28 42- 1,2,3,6,7,14, 21, 42 Therefore, you're correct and 14 is the GCF Hope this helps :)

Svetlanka [38]3 years ago

5 0

You are correct the Greatest Common Factor of 28 an 24 is 14.

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qaws [65]

Answer: 1.23×10¹⁶

Step-by-step explanation:

For this problem, we want to use order of operations to solve.

Parenthesis

Exponent

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Divide

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Let's first solve the parenthesis.

$(9*\frac{999999999}{9+9+9+9+9+9+9+9+9} )^2$ [add denominator]

$(9*\frac{999999999}{81} )^2$ [cross multiply]

$(\frac{999999999}{9} )^2$ [divide]

$(111111111)^2$ [exponent]

1.23×10¹⁶

The ending result is way too large. Therefore, we use scientific notation and get 1.23×10¹⁶.

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