Determine if the sequence is geometric. If it is, find the common ratio, the 8th term, and the explicit formula. 3, -18, 108, -648,

a.) Yes it is a geometric sequence and common ratio = -6

b.) 8th term = -839808

c.) explicit formula = 3×(-6^n-1)

Step-by-step explanation:

Geometric sequences are defined by the formula ar^n-1

Where a is the first term,

r is the common ratio

n is the number of term.

a.) To check if the given series is a geometric progression, we divide 3rd term by 2nd term, and divide 4th term by 3rd them. If we get the same answer, then it is a geometric progression and this answer is the common ratio

The terms are 3, -8, 108, -648

3rd term/2nd term = 108/-18 = -6

4th term/3rd term = -648/108 = -6.

Since both answers are equal, Then the progression is a geometric progression Where a, first term =3 and common ratio = -6

b) for 8th term, the geometric formula is denoted by: ar^8-1

=3×(-6^7) = -839808

c.) explicit formula = 3 × (6^n-1)

11 feet 6 inches and 8 feet 6 inches

javeir earned 56 dollors more than kyle so kyle and javier had 14w but javier made 56 dollors more so 14w plus 56 equals 70w so kyle has 14w

step-by-step explanation: hope i plz give me brainliest with the points so this is not constant cause it says last week so its clearly not every week