Δx (delta x) is about a secant line, a line between two points representing the rate of change between those two points. That's a "differential" (between the two points).
dx is about a tangent line to one point, representing an instantaneous rate of change. That makes it a "derivative."
I belive the answer to be b
Answer:
The answer is incorrect; the plus sign should be a minus sign (apex)
Step-by-step explanation:
Each side is 6 feet.
let s be 1 side of the square
24 = 4s
6 = s