Question

I really need help I’m stressing !

Answer 1

What are the questions or question?

Answer 2

Answer:

$p(n)=5(0.99)^{n}$

Step-by-step explanation:

We can use the form of $p(n) =ab^{n}$ to base our answer on.

We know that a, the starting output is 5 mW

And we know that the laser beam loses 1% of its power every time it reflects.

We need to find what the power is after it loses 1%, so we can do some simple math

$1-0.01=0.99$

that would mean that b = 0.99

Now that we know a and b, we can set up the equation by plugging in the values we now know

$p(n)=5(0.99)^{n}$