Question

I do not understand the concepts of Arithmetic sequences. Please explain if you can how to do this type of math.

Answer 1

the *concept* is that the difference between any two successive terms is the same (called the "common difference")

Answer 2

for example:

1,3,5,7,9,11 is arithmetic because
11-9=2
9-7=2
7-5=2
3-1=2

the common difference d of this arithmetic sequence (AS) is 2

Answer 3

other example:

4,9,14,19,24,29,...
the ... part means it continues in that way

this sequence is arithmetic
what is the common difference between each successive term?

Answer 4

which sequence..........ap ,gp???

Answer 5

atleast tell me which sequence?????????

Answer 6

is 5 the common difference between the numbers

Answer 7

she wrote arithmetic
@Mayrie yes

Answer 8

good job :)

Answer 9

I do not understand how the problems are calculated using formulas for example:
Find the eighth term of an arithmetic sequence that begins with 5 and has a common
difference of 9.
Substitute in the formula using a1 = 5, n = 8, and d = 9.
an = a1 + (n − 1)d
a8 = 5 + (8 − 1)(9)
= 5 + (7)(9)

= 5 + 63
= 68 How is this answer gotten. I am looking at it but it does not make any sense to me.