2(a) show that the chromatic number of the petersen graph is exactly 3 (b) find the chromatic number of the k-cube qk for any k, and of k, n-e where n 3 and e is any edge

answer: (1,3) and (-2,0) i think.

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

answer: 7270

step-by-step explanation:

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.