The total number of articles is 14 and only 7 can be published. Since what is asked is the ways to assemble the 7 articles, this is a permutation problem.
14P7 = <span>17297280 ways
If order is not of concern, the problem is just a combination problem
14C7 = </span><span>3432 ways</span><span />
-4 is what you put on both sides Bc it’s half of b
Answer:
MAMMAAAAAAA OOOooOOOoooOOO
Step-by-step explanation:
M A M M A A A A A A A O O O o o O O O o o o O O O
Answer:
6x+3
Step-by-step explanation:
8x +7 - 2x - 4
8x-2x+7-4 ( combine like terms)
answer:
6x+3
Reminder:Whenever combining like terms, the sign changes the same
Hope this helps and make sure to thank me!
∡b is a vertical angle to ∡a and therefore a twin, and we know that ∡a = 120°, thus since ∡b = ∡a, ∡b = 120° as well.
a full circle has a total of 360°, ∡d and ∡c are vertical angles, namely two angles across from each other at a junction, and therefore ∡d = ∡c.
∡a + ∡b is 120° + 120° thus 240°, since a circle has a total of 360°, 360 - 240 = 120, so the other two angles pick up that slack and divide it among each other evenly, 120/2 = 60, so ∡d = ∡c = 60°.
