PERFORMANCE TASK: 20 points Solve these problems. Refer to the rubrics below for your expected scores. Description Completeness of solution 5 points Solution is complete and correct 4 points 3 points 2 points 1 point Solution is Solution is Solution is All are wrong correct but partially partially final answer is correct and correct and wrong final answer is final answer is correct wrong With 1 - 2 With 3-4 With 5-6 With 7 or erasures erasures erasures more erasure No erasures Cleanliness of Work 5. 6. Find the 20 term of the arithmetic sequence 3, 7, 11, 15, 19, Find the sum of the first 20 terms of item 5. NONSENSE = REPORT.
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5. THE RULE IS 4n-1 so,
4(20)-1
=79
6. 3+7+11+15+19+23+27+31+35+39+43+47+51+55+59+63+67+71+75+79
= 820
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