What is the 7th term of the geometric sequence below? 7,-14,28,-56

The 7th term of given sequence is: 448

Step-by-step explanation:

Given sequence is:

7,-14,28,-56

Here

a1 = 7

a2 = -14

a3 = 28

First of all we have to find the common ratio. The common ration is the ratio between two consecutive terms of a geometric sequence and is same for all consecutive terms of a geometric sequence.

So,

The common ratio is -2.

The general formula for geometric sequence is given as:

Putting values

For 7th term, putting n=7

Hence,

The 7th term of given sequence is: 448

$4034.40

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

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.