Let x, y, z ∈ C, the set of complex numbers.
By definition of ○,
(x ○ y) ○ z = (x + y - 2i) ○ z
… = (x + y - 2i) + z - 2i
… = x + y + z - 4i
and
x ○ (y ○ z) = x ○ (y + z - 2i)
… = x + (y + z - 2i) - 2i
… = x + y + z - 4i
so (x ○ y) ○ z = x ○ (y ○ z), which means ○ is indeed associative under C.
Answer:
I think it's 2,772
Step-by-step explanation:
I did
36-14=22
Then I did 22× $126
Answer:
y=63, x=20, x=47, b=70, c=89, x=133
Step-by-step explanation:
1) y=63- alternate angles are the same
2) 4x+5x=180
9x=180
x=20
3) x=47
4) b=70- angles on a line equal to 180
c=89- angles in a triangle add up to 180
5) x=133- angles that are alternate are the same
Answer:
28 divided by 8 = 3.5
Step-by-step explanation:
36 divided by 15 is 2.4, 32 divided by 14 is 2.29, 30 divided by 12 is 2.5, and 28 divided by 8 is 3.5. The greatest quotient comes from 28 divided by 8 which is 3.5
Answer:
X inter= (-1.375,0)
Y inter= (0,2.2)
Step-by-step explanation:
I used "desmos graphing calculator"
If answer is right, check out desmos graphing calculator. It is a really good website where you enter equation and it graphs it for you.
I use desmos for questions that have anything to do with graphs
