5 . 3n<br><br>
A. 15,30,45,60<br>
B.5,15,45,135<br>
C.0,15,45,135<br>
D.15,45,135,405
TiliK225 [7]
Answer:
3n
Step-by-step explanation:
1.05,
look at the numbers on the right side of the decimal point. The lowest number will be your answer
Answer:
see below
Step-by-step explanation:
-33, -27, -21, -15,....
-33 +6 = -27
-27+6 = -21
-21+6 = -15
This is an arithmetic sequence
The common difference is +6
explicit formula
an=a1+(n-1)d where n is the term number and d is the common difference
an = -33 + ( n-1) 6
an = -33 +6n -6
an = -39+6n
recursive formula
an+1 = an +6
10th term
n =10
a10 = -39+6*10
= -39+60
=21
sum formula
see image
The sum will diverge since we are adding infinite numbers
I took a test on this yesterday and all i know is the answer is either 81 117 or 162