Is the sequence 3, 12, 36, a geometric sequence? explain. type your answer below.

In a geometric sequence you get the (n+1)'th term by multiplying the n'th term by the common ratio r.

To test if 3,12,36 ... are the terms of a geometric sequence we calculate the common ratio for 3 and 12 ,and 12 and 36. Thus: 

r = 12/3 = 4 and r = 36/12 = 3 

Since 4 is not equal to 3 there is not a constant common ratio and hence this is not a geometric sequence.

Answer:

$4034.40

step-by-step explanation:

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40