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Stells [14]
3 years ago
14

Which ratios are proportional to 14 : 21? Choose all answers that are correct.

Mathematics
2 answers:
Svet_ta [14]3 years ago
4 0
2 : 3 (reduced by a factor of 7 from 14 : 21) and 56 : 84 (increased by a factor of 4)
otez555 [7]3 years ago
4 0
Let's turn that ratio into a fraction: 14/21

14/21... Let's pull some common factors out.

If I remember my times tables, 7 fits into both 14 and 21 so let's divide the top and bottom by 7:
2/3

And 2/3 is the same as 2:3
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Combine Like Terms:

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<h3>What happens with the derivative at the maximum of minimum?</h3>

So, remember that the derivative at a given value gives the slope of a tangent line to the curve at that point.

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