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bixtya [17]
3 years ago
14

Find the multiplicative inverse of -2 in mod 7​

Mathematics
1 answer:
Elis [28]3 years ago
6 0

Answer:

  1. So something mod 7 is -2
  2. Lets consider what mod does as a commands: If you have 7 and then mod it by 2 ie 7%2 you get 1
  3. Essentially mod is seeing how many times a # goes into the other number and finding the remainder.
  4. In this case we want the remainder of 2: -8%3 =-2
  5. note there is also a mathematical procedural way to solve this.
  6. Rate positively and give brainlist
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Answer: 2

Step-by-step explanation:

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29,17,38,71,35,63,24. Two numbers that add up to 100. Two numbers which differ by 46, a multiple of 9
Dmitry [639]
  • 2 numbers that add up to 100: 71+29=100
  • 2 numbers which differ by 46: 63-17=46
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What is. 3/4x - 2/3x - 4 = 1/6x - 7<br><br> I give Brainliest!
Lady bird [3.3K]

Answer:

x = 36

Step-by-step explanation:

(3/4)*x-((2/3)*x)-4 = (1/6)*x-7 // - (1/6)*x-7

(3/4)*x-((2/3)*x)-((1/6)*x)-4+7 = 0

(3/4)*x+(-2/3)*x+(-1/6)*x-4+7 = 0

3-1/12*x = 0 // - 3

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x = -3/(-1/12)

x = 36

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3 years ago
9. ax + by = (a - b), bx - ay = (a + b)​
mart [117]

Answer: give me brainliest

Step-by-step explanation:

ax+by=a-b

ax=a-b-by

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bx-ay=a+b

substituting

b(a-b-by/a)-ay=a+b

ab-b²-b²y/a-ay=a+b

ab-b²-b²y-a²y/a=a+b

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-(b²+a²)y=a²+ab-ab+b²

(b²+a²)y=-(a²+b²)

y=-(a²+b²)/a²+b²

y=-1←

substituting value of y

x=a-b-b(-1)/a

x=a-b+b/a

x=a/a

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2 years ago
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frutty [35]

Answer:

Proportional: Non-Proportional: How to tell the difference: A proportional graph is a straight line that always goes through the origin. A non-proportional graph is a straight line that does not go through the origin.

Step-by-step explanation:

<h3>hope it helps</h3>
4 0
2 years ago
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