Answer:
Option A; -8 is correct
Step-by-step explanation:
We have given an expression:
(-2)+(-2)+(-2)+(-2)
Taking common factor (-2) from the above expression we will get
(-2)[1+1+1+1]
Now, simplify the above expression we will get
(-2)[4]
Now, after further simplification we will get
-8
Therefore, Option A; -8 is correct
If you start with a 12x16 rectangle and cut square with side length x, when you bend the sides you'll have an inner rectangle with sides
and
, and a height of x.
So, the volume will be given by the product of the dimensions, i.e.

The derivative of this function is

and it equals zero if and only if

If we evaluate the volume function at these points, we have

So, the maximum volume is given if you cut a square with side length

Multiplication property of equality
The correct answer would be 9.234
Is that 2m=43 or m^2=43??
If 2m=43 then...
m=43/2
m=21.5
If m^2=43 then...
m=√43