Greatest common factor of 21,30,44

Mathematics

1 answer:

lana [24]3 years ago

3 0

Answer:

Step-by-step explanation:

We found the factors 21,30,44 . The biggest common factor number is the GCF number. So the greatest common factor 21,30,44 is 1.

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Your answer to the question is A

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evablogger [386]

Answer:

$m=\frac{-3}{-7}$

Step-by-step explanation:

Given the following question:

Point A = (4, 8) = (x1, y1)
Point B = (-3, 5) = (x2, y2)

In order to find the slope any two points given we use the formula to find slope or rise/run.

$m=\frac{y2-y1}{x2-x1}$
$m=\frac{5-8}{-3-4} =\frac{-3}{-7}$
$m=\frac{-3}{-7}$

The reason why the students answer is incorrect because he substituted incorrectly. More specifically the run part of the formula for slope. The formula for slope goes x2 - x1 which means it should be -3 - 4, not -4 - 3, which will give you the answer -7.

Hope this helps.

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