Determine whether the following sequence is arithmetic, geometric, or neither.
1 1/3, 2, 2 2/3, 3 1/3

arith

Step-by-step explanation:

Let's check whether or not this is a geometric series.

The first term is 1 1/3, or 4/3.

What would the common ratio be, to convert this 4/3 into the 2nd term, 2?

(4/3)r = 2, or r = 2(3/4) = 6/4 = 3/2.

Assuming that the common ratio is r = 3/2, will multiplying 2 by 3/2 result in the 3rd term, 2  2/3?  NO.  So this is NOT a geometric progression.

The difference between 1  1/3 and 2 is 2/3.  If we add 2/3 to 2, we get 2  2/3, which agrees with the given 3rd term.  

If we add 2/3 to 2  2/3, do we get the fourth given term, 3  1/3?

2/3 + 2  2/3 is equivalent to 2  4/3, or 10/3, which is equivalent to 3  1/3.

Thus, this IS an arithmetic sequence, and the common difference is 2/3.

answer is because 4×10=40

and 98×4= is 392

40,392

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb