We are told that l is the length of the rectangle. We are told that the widht is 4 less than half the lenght. So, first, we calculate the half of l, which would be
the part that says "4 less than" means that we should subtract 4 from the half of length. So we get
now, this expression should be equal to the width , that we'll note as w. So we end up with the equation
It would be 9.3 x 10(to the 7th power)
Since you don't know the value of b about the best that you could do is:
(2b)^4
16b^4
16b*b*b*b
For this case, the first thing we are going to do is define the following variable:
x = unknown number
We now write the following inequality:
5-3x <= 11
We clear x:
5-11 <= 3x
-6 <= 3x
-6/3 <= x
-2 <= x
The solution set is:
[-2, inf)
Answer:
the solution set is:
[-2, inf)