Answer:
should be 30
Step-by-step explanation:
Answer:
85 feet by 170 feet
Step-by-step explanation:
This one relies on Calculus.
so you have 340 feet.
Let x = width, y = length of rectangle
one side of this rectangle will not use the new fence material
so 2x + y = 340 feet.
Area = x*y
We want to maximize Area
Area A = x*y = x*(340 - 2x)
Take the derivative of A w.r.t. x
dA/dx = 340 - 4x
set it to 0
340 - 4x = 0
4x = 340
x = 85 feet
and y = 340 - 2x = 340 - 2*85 = 340 - 170 = 170 feet
Answer:
-3
Step-by-step explanation:
9514 1404 393
Answer:
(c) 5x and 3x, and 4 and 1
Step-by-step explanation:
Like terms have the same variable(s) to the same power(s).
The terms of this expression are ...
- x^3: variable x, power 3
- 5x: variable x, power 1
- -3x: variable x, power 1
- 3y: variable y, power 1
- 4: no variable
- -1: no variable
The like terms are {5x, -3x}, which have the x-variable to the first power, and {4, -1}, which have no variable.
