Answer:
The answer is B.
Step-by-step explanation:
To obtain the inverse of a relation you simply interchange the x and y coordinates of each pair.
Here:
(3,1) becomes (1,3)
(3,1) becomes ((1,3)
(7, -7) becomes (-7,7) and
(12, -15) becomes (-15, 12)
The number equivalent as a mixed number would be 14/10
Answer: Not proportional
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Explanation:
Let's assume the two fractions are equal.
If so, then,

The last equation is false, so the first equation is false.
Therefore, the two ratios are <u>not</u> proportional.
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Another approach:
Calculate the decimal value of each fraction

The two ratios result in different decimal values, so the two ratios are not equal, aka not proportional.
just follow the steps given in the question
Answer:
Step-by-step explanation:
804.25mm