Nth term of sequence 9 11 13 15 17

= 2n + 7

Step-by-step explanation:

There is a common difference between consecutive terms , that is

11 - 9 = 13 - 11 = 15 - 13 = 17 - 15 = 2

This indicates the sequence is arithmetic with nth term

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 9 and d = 2 , then

= 9 + 2(n - 1) = 9 + 2n - 2 = 2n + 7

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168