1.2, 3, 7.5, 18.75, which formula can be used to describe the sequence? a. f(x) = 1.2(2.5)^x – 1 b. f(x) = 2.5(1.2)^x – 1 c. f(x) = 1.2(2.5)^x d. f(x) = 1.2(2.5)^x

THIS USER ASKED 👇

1.2, 3, 7.5, 18.75, which formula can be used to describe the sequence? a. f(x) = 1.2(2.5)^x – 1 b. f(x) = 2.5(1.2)^x – 1 c. f(x) = 1.2(2.5)^x d. f(x) = 1.2(2.5)^x

THIS IS THE BEST ANSWER 👇

a. F (x) = 1.2 (2.5) ^ (x – 1)

Step by step explanation:

The sequence is geometric with a first term of 1.2 and a common ratio of 3 / 1.2 = 2.5. The obvious formula for such a sequence is …

a[n] = a[1]· R ^ (n-1)

During[1] = 1.2 and r = 2.5, using x as a term number, the formula is …

F (x) = 1.2 · 2.5 ^ (x-1). . . . . select games A.