Timothy purchased a computer for $1,000. The value of the computer depreciates by 20% every year.

This situation represents [a.) exponential decay, b.) exponential growth]

The rate of growth or decay, r, is equal to [c.) 0.8, d.) 1.2, e.)0.2

year.

So the value of the computer each year is [f.) 20 %, g.) 80%, h.) 120%] of the value in the previous year.

It will take [i.) 3, j.) 2, k.) 4, l.) 5.] years for the value of the computer to reach $512.

This situation represents [a.) exponential decay

The rate of growth or decay, r, is equal to  c.) 0.2

So the value of the computer each year is g.) 80% of the value in the previous year.

It will take [i.) 3 years for the value of the computer to reach $512.

Step-by-step explanation:

Since the value depreciates each year, it represents exponential decay.

The rate of growth or decay, r, is equal to

Depreciates 20%, so r = 0.2.

So the value of the computer each year is ... of the value in the previous year,

Depreciates 20%, so it is 100% - 20% = 80% of the value in the previous year.

It will take x years for the value of the computer to reach $512.

The value of the computer after x years is given by:

In which V(0) is the initial value and r is the decay rate. So

We want to find x for which V(x) = 512. So

Applying log to both sides:

So it will take 3 years.

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.