Question

In an arithmetic sequence 10th term is 20 and 20th term is 10.
1) what is the common difference?
2) write the first term.
3) what is the algebraic expression for this sequence?
4) what is the 30th term? 5) what is the 33rd term?

Xn=dn+(f-d) 3rd question answer plz use this equation​

Answer 1

Step-by-step explanation:

Given, arithmetic sequence X

n

=5n+3

a. The first term of the sequence, put n=1

X

1

=5×1+3=8

b. d=5 (coefficient of n be the common difference)

The remainder divide by 5=3.

(

5

8

=3,

5

13

=3,

5

18

=3,etc)

Answer 2

Answer:

29 is your answer.

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