If Sn = 3n^2 – 5n, determine the value of t18.

asked Jan 14, 2020 80.6k views

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6 votes

Answer: 882

Explanation:

S(n) = 3n² - 5n

S(18) = 3(18)² - 5(18)

= 3(324) - 90

= 972 - 90

= 882

Tim Vermeulen answered Jan 19, 2020

9.0k points