Write a recursive formula for the following arithmetic sequence. -6, -9, -12, -15, ...

= - 3

Step-by-step explanation:

The recursive formula lets us find a term in the sequence by adding the common difference d to the previous term.

Here d = a₂ - a₁ = - 9 - (- 6) = - 9 + 6 = - 3 , thus

= - 3 with a₁ = - 6

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

use formula for the circle a=3.14

step-by-step explanation: