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OpenStudy (anonymous):
Using sigma notation, describe the total length of 7 pictures hung side-by-side. Then find the total length the pictures occupy along the wall if the first picture has a length of 10 inches and the length of each successive picture is 4 inches longer than the previous one. (2 points)
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OpenStudy (alexwee123):
ill help you out w/ the notation part.. \[\sum_{x=1}^{7}(4x+10)\] do you think you can solve it now?
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