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Arisa [49]
2 years ago
15

What points satisfy 2x-6y=12 (i need 3)

Mathematics
1 answer:
kari74 [83]2 years ago
8 0

Answer:

(0,-2),(3,-1),(6,0)

Step-by-step explanation:

Plug in a number into x or y and solve the equation for the other variable. Or just use Desmos to graph it real quick and see the points.

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Help picture attached
Vilka [71]
I would say c or d. but since its multiple choice, its ok to guess sometimes.
6 0
3 years ago
Prove that u(n) is a group under the operation of multiplication modulo n.
katrin2010 [14]

Answer:

The answer is the proof so it is long.

The question doesn't define u(n), but it's not hard to guess.


Group G with operation ∘

For all a and b and c in G:

1) identity: e ∈ G, e∘a = a∘e = a,

2) inverse: a' ∈ G, a∘a' = a'∘a = e,

3) closed: a∘b ∈ G,

4) associative: (a∘b)∘c = a∘(b∘c),

5) (optional) commutative: a∘b = b∘a.


Define group u(n) for n prime is the set of integers 0 < i < n with operation multiplication modulo n.


If n isn't prime, we exclude from the group all integers which share factors with n.


Identity: e = 1. Clearly 1∘a = a∘1 = a. (a is already < n).


Closed: u(n) is closed for n prime. We must show that for all a, b ∈ u(n), the integer product ab is not divisible by n, so that ab ≢ 0 (mod n). Since n is prime, ab ≠ n. Since a < n, b < n, no factors of ab can equal prime n. (If n isn't prime, we already excluded from u(n) all integers sharing factors with n).


Inverse: for all a ∈ u(n), there is a' ∈ u(n) with a∘a' = 1. To find a', we apply Euclid's algorithm and write 1 as a linear combination of n and a. The coefficient of a is a' < n.


Associative and Commutative:

(a∘b)∘c = a∘(b∘c) because (ab)c = a(bc)

a∘b = b∘a because ab = ba.


5 0
2 years ago
Read 2 more answers
There are 750 spectators in the stadium of which 420 of them are woman and the rest are man what percent are men
MrMuchimi
44% of people are men
5 0
3 years ago
Read 2 more answers
Question 18(Multiple Choice Worth 1 points)
Y_Kistochka [10]

Answer:

B

Step-by-step explanation:

2^2 x 2^3 = 2^5

2^5/2^4 = 2^1

4 0
2 years ago
1/2 divided by 3/5 equals what
Scrat [10]
3/2 improper fraction
6 0
3 years ago
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