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3 years ago

Y = - 2x + 1 2x - 2y = 4 Solve systems of equations by substitutions

Mathematics

1 answer:

astraxan [27]3 years ago

6 0

Answer:

x= 1

y= -1

Step-by-step explanation:

y=-2x+1

2x-2y=4

substitute for y

2x-2(-2x+1)=4

reduce

2x+4x-2=4

6x=6

x=1

y= -2(1)+1

y= -1

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Step-by-step explanation:

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3 years ago

Subjects for the next presidential election poll are contacted using telephone numbers in which the last four digits are randoml

elixir [45]

Answer: 0.3439

Step-by-step explanation:

Total number of digits : 10

The number of digits except zero =9

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Then, the probability that one such phone number , the last four digits do not include any zero:-

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3 years ago

How to integrate a/1-ay?

AysviL [449]

In private correspondence with the author of the question, it was determined
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3 years ago

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Yuliya22 [10]

Answer:

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3 years ago

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wolverine [178]

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Step-by-step explanation: