Determine the measure of angle 1
2 answers:
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So hmmm 7, 0, -7.... what the dickens is going on? hmmm is really dropping each time by 7, so, 7-7, 0, and 0-7, -7 and so on.
so, the "common difference" is then -7, and our first term is 7, now, who's -175? let's check.
so, the "common difference" is then -7, and our first term is 7, now, who's -175? let's check.