Yes you do! In fact not just I. You move al l three down right after or before you move the units to the right.
Answer:
2nd - (w - 5)(w + 5)
4th - (-4v - 9)(-4v + 9)
Step-by-step explanation:
1. The first option shows an expression multiplied by its opposite(x -1), so therefore, it does not show the difference of squares
2. The second option does show the difference of squares because it is in the form (a + b)(a - b)
3. The third option is just a square because the same expression is multiplied by itself.
4. The fourth option is the difference of squares because it is in the form (a + b)(a - b). a equals -4v and b equals 9 in this case.
5. The fifth option is not the difference of squares. No term in common in both expressions
6. The sixth option is just a square because the same expression is multiplied by itself.
In all, there are two options that are the difference of squares, the 2nd and 4th.
Answer:
33.3333% decrease
Step-by-step explanation:
Percent change formula: 
, where x is the new value and y is the starting value.
Plug in values and solve:
-33.3333% change, or a 33.3333% decrease.
Answer:
9
Step-by-step explanation:
The percent error is -2.1352% of Jocelyn's estimate. May I have Brainless
