The correct answer is
Triangle A
Triangle D
This is the answer because they are the same triangle but only triangle D is flipped upside-down.
That is a parabola.
All domain of a parabola are, (-∞,∞).
The range would be, (-∞, 0]
Answer
It’s 960
Explanation
Just multiply 12x4x20 and that’s your answer
L*w=20, so l=20/w
l=2w+3
20/w=2w+3
20=2w^2+3w
2w^2+3w-20=0
Slip and slide
w^2+3w-40
(w+8)(w-5)
(w+8/2)(w-5/2)
(w+4)(2w-5)
w= -4 or 5/2, but since width must be positive, it is 5/2
(5/2)*l=20
l=8
Final answer: Length= 8, Width= 5/2
