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PtichkaEL [24]
3 years ago
6

How can we predict the sign of the product or quotient of sign numbers?

Mathematics
1 answer:
Andru [333]3 years ago
6 0
Two positives make a positive
two negatives make a positive
1 negative and 1 positive make negative
1 positive and 1 negative make a negative
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Mrac [35]

Answer:

Step-by-step explanation:

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3 years ago
Please Help! Show all the steps!
likoan [24]

You can start by subtracting different equations from each other.

3x + 2y + 3z = 1

subtract

3x + 2y + z = 7

2z = -6

divide by 2

z = -3

add the following two expressions together:

3x + 2y + z = 7

3x + 2y + 3z =1

6x + 4y + 4z = 8

subtract the following two expressions:

6x + 4y + 4z = 8

5x + 5y + 4z = 3

x - y = 5

^multiply the whole equation above by 3

3x - 3y = 15

subtract the following two expressions:

3x - 3y = 15

3x + 2y = 10

-5y = 5

divide each side by -5

y=-1

take the following expression from earlier:

x - y = 5

substitute y value into above equation

x - - 1 = 5

2 negatives make a positive

x + 1 = 5

subtract 1 from each side

x = 4

Therefore x = 4, y = -1, z = -3

I checked these with all 3 equations and they worked :)

(it's quite complicated, comment if you don't understand anything) :)

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3 years ago
What is a cow well 11111111111111111111111111111111111111
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Answer: it is all of them

Step-by-step explanation:

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3 is less than w, and 8 is greater than w
eduard

Answer:

Whats the question?

Step-by-step explanation:

Srry i couldnt help

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2 years ago
Read 2 more answers
What is the value of y?<br><br> Enter your answer in the box.
8090 [49]

Answer:64

Step-by-step explanation:

Add 79 with 37 an you will get 116 you need to know the total angle for a triangle is 180 so 180 minus 116 is 64

6 0
3 years ago
Read 2 more answers
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