The first term of an arithmetic sequence is -5, and the tenth term is 13. find the common difference.
a) 8/9
b) 1.8
c) 2

any will be greatly appreciated!

The common difference be 2.

Option(C) is corrct .

Step-by-step explanation:

As given

The first term of an arithmetic sequence is -5, and the tenth term is 13.

As the the terms in arithmetic sequence is in the form.

d is the common difference .

As

n = 10

Put in the above

d = 2

Therefore the common difference be 2.

Option(C) is corrct .

for this case we have the following expression:

to solve, we rewrite the expression as:

we apply double c and we have:

thus, the quotient is 48.

so, patel found a wrong ratio and the multiplication was incorrect.

option d

ab will be equal to