Answer:
You are working for the meteorological department in Hawaii. Your job is to track the amount of rainfall received on 50 sites across Hawaii through the year. This type of statistical study is AN OBSERVATION
Step-by-step explanation:
You can use Pythagoras Theorem,
∴
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1.7724538509
I used a calculator
Answer: M (slope) = -1 / -3 = 0.3
the answer is C) 7 and -7