Question

Consider the sequence below. If we represent this sequence with the letter a then do the following

1, 7, 13, 19, 25, 37, 43

Find a(5)

Find a2 + a6

Find a(4)+2a(6)

Find √a(5)

Answer 1

a(5)=25

a2+a6=44

a(4)+2a(6)=93

sqrta(5)=5

Explanation:

You are given all the terms needed but sometimes you will have to create a formula.

a(b)=6b-5 is the formula in this sequence, now you can just plug in everything.

a(5)=6(5)-5

=25

a2=7

a6=37

7+37=44

a(4)=19, a(6)=37

19+2(37)=93

a(5)=25

sqrt25=5