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OpenStudy (anonymous):
whats the common difference 3x+9y, 6x+5y, 9x+y, 12x-3y, 15x-7y,.... a.5x-3y b.-3x-3y c.3x-4y d.3x+4y e. 5x+4y
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OpenStudy (anonymous):
e
OpenStudy (espex):
To find the common difference in a sequence, you subtract the preceding term \(a_2 - a_1\), \(a_3 - a_2\), etc.. In this case it would look like this: 6x+5y , 9x+1y -(3x+9y) , -(6x+5y) etc.. etc.. and the answer is not 'e'. -------- ---------
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