Find 26th term in the arithmetic sequence: -15,-35,-55,-75,...

- 515

Step-by-step explanation:

The n th term of an arithmetic sequence is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 15 and d = - 35 - (- 15) = - 35 + 15 = - 20, thus

= - 15 + (25 × - 20) = - 15 - 500 = - 515

-515

Step-by-step explanation:

In this example the first value is −15 and every value afterwards is 20 less.After substituting these values to above formula, we obtain: All we have to do is add 25 twenties or 25 x 20 = 500 and -15 - 500 = -515

i have no clue at all sorry

step-by-step explanation:

i believe the answer is d.

hope it you! : d