The correct statements are as follows:
A point's location on the coordinate plane is indicated by an ordered pair, (x,y).
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Answer:</h2>
<u>We can use t-test </u><u>to compare the two treatments statistically</u>
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Step-by-step explanation:</h2>
T test is used as a hypothesis testing tool, which allows testing of an assumption applicable to a population. It is usually used when the data sets such as the set of data recorded as a result from flipping a coin a 100 times will follow a normal distribution and may have unknown variances.The t-test is one of many tests used for the purpose of hypothesis testing in statistics.
Yes 28=7y as you said, then you do divide by 7 to get the y by itself which will get you the answer of y= 28/7