Question

For the sequence an=3n-5 what is the value of a10

Answer 1

Answer:  The required value of $a_{10}$ is 25.

Step-by-step explanation:  We are given a sequence whose n-th term is given as follows :

$a_n=3n-5.$

We are to find the value of $a_{10}.$

To find the value of  $a_{10}.$, we need to put n = 10 in the given expression.

So, substituting n = 10 in the given expression, we get

$a_{10}=3\times 10-5=30-5=25.$

Thus, the required value of $a_{10}$ is 25.

Answer 2

Answer: The value of $a_{10}=25$

Step-by-step explanation:

The given sequence : $a_n=3n-5$ .

To find the value of $a_10$ , need to substitute the value n=10 in the above equation , we will get

$a_{10}=3(10)-5$

Open Parenthesis ,

$a_{10}=3\times10-5$

Solve product ,

$\Rightarrow\ a_{10}=30-5$

Solve subtraction,

$\Rightarrow\ a_{10}=25$

Therefore , the value of $a_{10}=25$