Answer:
The answer is
Step-by-step explanation:
C. plz give me brainliest

Start with the original function:

Substitute in the known value:

Multiply:

Add:

Answer:
c) 2⁻⁹
Step-by-step explanation:
1) use negative power rule: 
1/2⁹
2) simplify ₂⁹ to 512
1/512 ( same as (8) ⁻3
Answer:
20
Step-by-step explanation:
using pythagorean theorem to find the hypotenuse gives √20, so the measure of the side of the square is also √20, square that to give the area of square, which is 20