Question

The function f(3) = 50.000(0.975)", where x represents the underwater

depth in meters, models the intensity of light below the water's surface in lumens per
square meter. What is the intensity of light 200 meters below the surface

Answer 1

9514 1404 393

Answer:

316 lumens/m²

Explanation:

We assume your intensity function is ...

f(x) = 50,000(0.975^x) . . . . x meters below the surface

__

Use 200 for x and do the arithmetic.

f(200) = 50,000(0.975^200) ≈ 316 . . . . lumens/m²