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(

Question

2 years ago

7

x) = 1.2(2.5)^x d.F(x) = 1.2(2.5)^x

2 answers:

Firlakuza [10] · Answer 1 · 2022-06-06T01:32:37+03:00

Answer:

a. F(x) = 1.2(2.5)^(x – 1)

Step-by-step explanation:

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

a[n] = a[1]·r^(n-1)

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

F(x) = 1.2·2.5^(x-1) . . . . . matches selection A

Mama L [17] · Answer 2 · 2022-06-06T03:52:15+03:00

6 0

Answer:

Answer: "f(x) = 1.2(2.5)x-1"

Step-by-step explanation: