Answer:
what grade is this?
Step-by-step explanation:
Answer:
C. It means to input a -2 into the function to find the output.
Step-by-step explanation:
f(x) means to the function of x. The question is asking you to input -2 for x and find the answer.
I thnk it is 22 but im not to sure
Answer:
The remaining area in the form of a polynomial function
where 0 < x < 3.
Step-by-step explanation:
Breadth of rectangular piece of cardboard = 7 inches
Length of rectangular piece of cardboard = 20 inches
Area of cardboard = 
Area of cardboard = 
Area of cardboard =
Squares of length x inches on a side cut from each corner.
Length of square = x
Area of 1 square = 
Area of 4 squares = 
Area of remaining portion 
So, the remaining area in the form of a polynomial function
where 0 < x < 3.