Answer:
You don't really need to do it, but it helps you keep things more organized and easier to follow. Imagine if you're doing some multi-variable equation,
2a + 5b + 4d + 3c + b + a + 2d
that looks like a mess, it'll be easier to look at if you put all the similar variables next to each others like this:
a + 2a + b + 5b + 3c + 2d + 4d
(a + 2a) + (b + 5b) + 3c + (2d + 4d)
now you can add them up much easier.
Answer:
98.596
Step-by-step explanation:
formula - v=π2×h
(3.14)2×10=
Answer:
see below
Step-by-step explanation:
7x-4 6x-4-x
Combine like terms on the second expression
7x -4 6x -x -4
5x -4
These are not equivalent expressions
7x -4 does not equal 5x-4
Answer:
6m + 5
Step-by-step explanation:
Answer:
No.
Step-by-step explanation:
A regular polygon has all sides and angles congruent. This is not possible with a concave polygon. If the sides are congruent in a concave polygon the angles are not congruent.
