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Anna11 [10]
2 years ago
11

CAN YOU HELP ME WITH MY MATH WORK

Mathematics
2 answers:
Alex73 [517]2 years ago
3 0

Answer:

Read on:

Step-by-step explanation:

Step 1:

  System #1

y=\frac{1}{2}x-2

y=-3x+5

  System #2

y=4x-3

y=4x-3

  System #3

y=\frac{-2}{3}x-1

y=\frac{-2}{3}x+2

Step 2:

  Look at First Drawing:

  Look at Second Drawing

  Look at Third Drawing

Step 3: Intersecting

Step 4: Overlap (Same Line)

Step 5: Parallel

Step 6:

  Intersecting: If the slopes are unequal

  Parallel: If the slopes are equal but the y-intercept is unequal

  Same line: If the slopes and y-intercepts are all equal

Step 7: The lines are parallel because although the slopes are equal, the y-intercepts are not

scoray [572]2 years ago
3 0
Guy in the top was correct, im on that same lesson
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Answer:

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Step-by-step explanation:

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Standard deviation(\sigma) = \sqrt{\frac{1}{n}\sum_{i=1}^{n}{(x_{i}-\bar{x})^{2}} }

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Applying t- test:

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Then the p-value at 99% level of significance.

⇒ p-value = 0.1277

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