SOLUTION: What is the sum of the first 10 terms of the sequence defined by An=4n-3? a. 37 b. 190 c. 380 d. 384

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Question 853278: What is the sum of the first 10 terms of the sequence defined by An=4n-3?
a. 37
b. 190
c. 380
d. 384
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
An=4n-3
A1=4-3=1
A10=4*10-3=37
S = ½(a + an)n
S = ½(1 + 37)10=190
b) 190