2B stands for 2Black.
It is the softness or hardness of a pencil. If you thought there was only one pencil type, think again. There are a variety of lead pencils, ranging in softness or hardness. ^^
-2bk2 + 6bk - 2b = -2b(k2 - 3k + 1)
b = 0.2 x 10a = 2aa/(2b) = a/(4a) = 1/4= 25%
5ab(3a - 2b)
NO
Assuming the missing sign is "minus" then you have the difference between two squares. This is solved as (x + y)(x - y). In your example x = 4a and y = 2b so the factorisation is (4a + 2b)(4a - 2b) or more completely: (4)(2a + b)(2a - b).
no
What does 2B on a CW stand for
2B
This are the 6 different pencil cases: '''2B, HB, 4A, 4B, 2A, 4C.'''
you take 2 HB or 2B pencil,rubber and a sharpener
6B is the darkest.
2B means they hit a double 3B means they hit a triple
Use a B, 2B, or darker grade of pencil for your shading. H and 2h pencils will give you less depth.
The order of hardness goes:9H 8H 7H 6H 5H 4H 3H 2H H F HB B 2B 3B 4B 5B 6B 7B 8B 9B hard medium soft
H stands for hardness and B stands for blackness this is how a pencil scale goes: 9H 8H 7H 6H 5H 4H 3H 2H 1H H HB B 1B 2B 3B 4B 5B 6B 7B 8B 9B9H is very fine hard and light but 9B is thick black and very soft (more like charcoal)
um this is a weird question but i just "munch"on whichever pencil is in my hand
No on a pencil stands for Number. It is a measure of hardness, similar to the HB scale.