Answer:
see explanation
Step-by-step explanation:
The area (A) of a square is calculated as
A = s² ( s is the side length )
Given A = 55 , then
s² = 55 ( take the square root of both sides )
s = 
≈ 7 in ( to the nearest whole inch )
s ≈ 7.4 in ( to the nearest tenth of an inch )
Answer:
what is this topic in math?
Answer:
-12
Step-by-step explanation:
Let b = -1 and a = -3
The average rate of change = 
f(b) = f(-1) = 3(-1)^2 - 5 = 3 - 5 = -2
f(a) = f(-3) = 3(-3)^2 - 5 =27 - 5 = 22
f(b) - f(a) = -2 - 22 = -24
b - a = -1 + 3 = 2
= -24/2 = -12
