Find the sum of the first 30 terms of the sequence below an=3n+2

= 1455.

Step-by-step explanation:

Given : an=3n+2.

To find : find the sum of the first 30 terms of the sequence.

Solution : We have given = 3n + 2.

For first term n = 1

  = 3 (1) +2.

= 5

For last term n = 30

= 3(30) +2

= 90 +2

= 92.

Then sum of first 30 terms

.

.

.

= 15 *97.

= 1455.

Therefore, = 1455.

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8