I’m pretty sure it’s D but I may be wrong
Answer:

Step-by-step explanation:
The figure is a cube
The surface area of a cube is equal to

where
b is the length side of the cube
In this problem we have
substitute

Do you know your trig ratios?
Answer:

Step-by-step explanation:
<u>Composite Function</u>
Given f(x) and g(x) real functions, the composite function named fog(x) is defined as:

For practical purposes, it can be found by substituting g into f.
We have:


Computing the composite function:

Operating:

Operating:

Now evaluate for x=4


Answer:
102.8
Step-by-step explanation:
If log₁₀y = 2.012, y = 10^2.012 = 102.8