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1 vote
Find a 101 of the sequence 5, 8, 11, ....

A. 302
B. 311
C. 305
D. 308

User Arnep
by
3.5k points

1 Answer

3 votes

Answer:

305

Explanation:

We are adding 3 each time

5+3 = 8

8+3 = 11

The formula for an arithmetic sequence is

an = a1+d(n-1) where a1 is the first term and d is the common difference

an = 5+3(n-1)

We want the 101 term

a101 = 5 +3(101-1)

= 5+3(100)

= 5+300

= 305

User Miroslav Popovic
by
4.7k points