I'll tell you more: when you fix the perimeter of the rectangle, the one with the maximum area is always the square with that perimeter. Here's the proof.
Given a perimeter 2P, all rectangles with that perimeter have sides x and y such that
The area is the product of the dimensions, so
The maximum of this parabola is found by setting its derivative to zero:
which implies
So, the maximum area is achieved when x=y, i.e. when the rectangle is actually a square.
So, the square with perimeter is 3131 has side length
Answer:
y = 4x + 57
Step-by-step explanation:
y = 4x + b
9 = 4(-12) + b
9 = -48 + b
57 = b
y = 4x + 57
Answer:
Step-by-step explanation:
Given equation:
Solving for
Combining like terms on both sides.
Adding both sides to get terms on one side.
Adding 12 both sides to isolate on one side.
Dividing both sides by 8.
∴ (Answer)
There is lack of information. Sorry but it cannot be answered.