Answer:
(A) 261
Step-by-step explanation:
We have to find the sum of summation of 3i+2 from i equals 5 to 13, that is
[tex]\sum_{i=5}^{13}(3i+2)[/tex]
=[tex]3(5)+2+3(6)+2+3(7)+2+3(8)+2+3(9)+2+3(10)+2+3(11)+2+3(12)+2+3(13)+2[/tex]
=[tex]17+20+23+26+29+32+35+38+41[/tex]
=[tex]261[/tex]
Thus, the sum of summation of 3i+2 from i equals 5 to 13 is 261.
