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den301095 [7]
3 years ago
14

Is (10 +62) mod 7 + 2 mod 7 ≡ (10 + 2) mod 7 + 62 mod 7?

Mathematics
1 answer:
Sergio [31]3 years ago
4 0

Yes.

(10 + 62) + 2 ≡ 72 + 2 ≡ 74 ≡ 4 (mod 7)

and

(10 + 2) + 62 ≡ 12 + 62 ≡ 74 ≡ 4 (mod 7)

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Please please please help!! i need this asap and i have no where else to go!
nadezda [96]
1   1   1        2
2  -3   1      -11            -2R1 + R2 → R2
-1  2  -1        8                R1 + R3 → R3

1    1    1      2
0    -5  -1   -15             R2 ⇔ R3
0    3    0     10

1    1    1      2
0    3    0     10             -R3
0   -5   -1    -15

1    1    1      2
0    3    0     10             1/3 R2
0    5    1     15

1    1    1      2                   -R2 + R1
0    1    0     10/3             -5R2 + R3
0    5    1     15

1    0    1      -4/3              
0    1    0     10/3             -R3 + R1
0    0    1      -5/3

1    0    0       1/3             
0    1    0     10/3           
0    0    1      -5/3

Therefore, x = 1/3, y = 10/3, z = -5/3
7 0
3 years ago
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Which expression simplifies 6(2 + x + x + y) using only 3 terms
almond37 [142]

Answer: 6(2+2x+1y)

Step-by-step explanation:

i think that is the anwser

4 0
3 years ago
Find the equation of the line below
yuradex [85]
It give you two point, (2,4)(-1, -1).
f(x)=mx+b
2m+b=4
-m+b=-1
2m+b+m-b=5
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b=2/3
f(x)=5/3x+2/3
3 0
3 years ago
I REALLY NEED HELP I WILL PUT CROWN IF YOU ANSWER CORRECTLY
faust18 [17]

Answer:

I think it would be \frac{36}{4} -6

Step-by-step explanation:

stomp me if its wrong <3

\frac{36}{4} -6 = 9-6 = 3

 <em> hopefully this helps ~</em>

5 0
1 year ago
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What role do animals have in the carbon cycle?
dangina [55]
I believe it is use sugar and and release carbon. We breath in oxygen so you know it can’t be anything where we release oxygen. And I don’t know how we could release nitrogen so I would go with the second one
4 0
3 years ago
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