Answer:
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Step-by-step explanation:
Input this trigonometric ratio into a scientific calculator, and you will end up with the above answer.
* I also included its high term, so you know which answer to choose from.
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Which is the correct answer.
1 answer:
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Answer:
Yes, y varies directly with x, and the equation is .
Step-by-step explanation:
To check where there is a direct relationship between x and y, we need to check whether all the x,y pairs we have fit some rule:
.
For the first pair (x=4, y=6.4),
Therefore .
For the second pair (x=7, y=11.2),
Therefore .
For the third pair (x=10, y=16),
Therefore .
For the second pair (x=13, y=20.8),
Therefore .
So x does directly vary with y, and we have found out that .