Th Write an explicit formula for an, the n term of the sequence 12, -6,3,...​

9514 1404 393

  an = 12(-1/2)^(n-1)

Step-by-step explanation:

Your sequence has a common ratio of ...

  r = -6/12 = 3/-6 = -1/2

The first term is 12.

The explicit formula for the general term of a geometric sequence with first term a1 and common ratio r is ...

  an = a1·r^(n-1)

Using the values for this sequence, the explicit formula you want is ...

  an = 12·(-1/2)^(n -1)

__

This could be rearranged to be ...

  an = -24·(-2)^(-n)

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

false

step-by-step explanation:

rulers and compasses arent required in order to bisect an angle because when bisecting angles, you're making a "half circle" and considering in order to bisect an angle it wouldn't be straight, you wouldn't need either of the two