Estimate the number of cell phone subscribers in 2008. Round to the nearest tenth.

Question

asked Oct 3, 2021 45.0k views

1 Answer

Sarsaparilla · Answer 1 · 2021-10-09T07:55:26+0000

Answer:

For this case we have an exponential function of the form:

Where,

A: initial number of subscribers

b: rate of change

x: number of years

Part A:

The equation modeling the problem is given by:

For the year 2008 we have x = 2.

Substituting values:

Part B:

For the year in which the company reaches 278 million we have

Thus, the company reaches 278 million in the year 2009.

Explanation: