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Ganezh [65]
3 years ago
10

What is the y-value to the solution of y = 5x -4 and y = 2x + 8

Mathematics
1 answer:
Fiesta28 [93]3 years ago
6 0

Answer:

At the bottom!

Step-by-step explanation:

Put the two equations into the same standard form:

2x-y=8

-5x+2y=3

Now if you add the two equations up, guess what will happen?

You will "eliminate" the y variable, and only be left with the x variable.

Technically, you will get:

2x-y+2+28-5x+29+2y=8+23

-3x+20y=11

-3x=11

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a point on a perpendicular bisector is 7cm from each endpoint of the bisected segment and 5cm from the point of intersection. Wh
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9514 1404 393

Answer:

  about 9.80 cm

Step-by-step explanation:

The length of half the segment (h) can be found from the Pythagorean theorem:

  h² +5² = 7²

  h² = 7² -5² = 49 -25 = 24

  h = √24 = 2√6

This is half the segment length, so the whole segment length is ...

  L = 2h = 2(2√6)

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The length of the segment is 4√6 ≈ 9.80 cm.

8 0
3 years ago
When writing a set of hypotheses for a situation, which of the following is true?
Andre45 [30]

Answer:

The Null hypothesis is a claim the researcher is trying to disprove. (I think)

Step-by-step explanation:

The null hypothesis states that there is no relationship between the two variables being studied (one variable does not affect the other). It states results are due to chance and are not significant in terms of supporting the idea being investigated.

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3 years ago
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Serjik [45]

Answer:

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7 0
3 years ago
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NEED HELP ASAP
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1) (-7)3

2) PEMDAS; simplify (5-3)

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3 years ago
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You mow your neighbor’a lawn in 5 hours and earn $45. what is your hourly wage
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