Plug in 3 for x so
2(3)+2
6+2=
8
The evaluation is 8
Answer:
<h2>V = 27m³</h2>
Step-by-step explanation:
We know: All faces of a cube are squares.
The formula of an area of a square with a side <em>s</em>:
<em>A = s²</em>
We have <em>A = 9m²</em>
Substitute:
<em>s² = 9 → s = √9 = 3 m</em>.
The formula of a volume of a cube with an edge <em>s</em>:
<em>V = s³</em>
Substitute:
<em>V = 3³ = 27 m³</em>
Simple....
you have:
So...first you know you're trying to find x..
But, you have a square root on one side...to remove this you'd have to square both sides--->>>
Leaving you with....
Move the terms over and set it equal to
zero.
-->>
Factor out a 3...
What multiplies to -12 and adds to 4?
6*-2=-12
6+-2=4
Leaving you with...
Remember you're solving for 0....
3x-2=0
3x-2=0
+2 +2
3x=2
x=
Then-->>
x+2=0
x+2=0
-2 -2
x=-2
Thus, your answer.
Answer:
the square root of -1 is actually "i"
Step-by-step explana