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Olegator [25]
3 years ago
10

Plz help. i think the answer is C but i can’t figure out the work

Mathematics
1 answer:
xenn [34]3 years ago
5 0

Here we have x + y - (x - y). Distributing the - sign results in

x + y - x + y Combining like terms results in:

2y

So, C is the correct answer.


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What are two numbers that add to -1 and multiply to -8
Ierofanga [76]

Answer:

  (-1-√33)/2, (-1+√33)/2

Step-by-step explanation:

If one of them is x, then it satisfies ...

  x + -8/x = -1

  x^2 -8 = -x . . . . . multiply by x

  x^2 +x = 8 . . . . . add x+8

  x^2 +x + 1/4 = 8+1/4 . . . . complete the square

  (x +1/2)^2 = 33/4

  x + 1/2 = ±(1/2)√33 . . . . . . take the square root

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5 0
3 years ago
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Alchen [17]

Answer:

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6 0
3 years ago
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PLEAS HELP ME I BEG ONYL 4 QUESTIONS PLEASE PLEASE
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It works well to put both equations in the same form. Here, we use "general form". Any common factors are removed from the numbers. The leading coefficient is positive.

The equations are inconsistent if the x and y coefficients have the same ratio but the constants are different. They are consistent otherwise.

1. 8x +y +4 = 0
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.. x +y +3 = 0
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Answer:

Step-by-step explanation:

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jeka94

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Number of times an event occurs total number an experiment is performed

Step-by-step explanation:

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3 years ago
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