What is the next number in the arithmetic sequence below? 27, 15,3, -9,
OA. 12
OB. -3
Oc. -21
OD. -20

-21

Step-by-step explanation:

27, 15,3, -9,

15 - 27 = - 12

3 - 15 = - 12

-9 - 3 = - 12

Hnece, Common difference d = - 12

Next term = - 9 + (-12) = - 9 - 12 = - 21

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.