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Andru [333]
3 years ago
8

The grades on a history midterm at Almond are roughly symmetric with y = 85 and o = 2.0.

Mathematics
1 answer:
Alik [6]3 years ago
7 0

Answer:

The z-score for Michael's exam grade is 0.50

Step-by-step explanation:

Data

  • mean, μ = 85
  • standard deviation, σ = 2.0
  • Michael's exam grade is the value of interest, x = 86

From definition, z-score is  computed as follows:

Z = (x - μ)/σ

Z = (86 - 85)/2.0

Z = 0.50

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5 0
3 years ago
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3 0
3 years ago
Which inequality is equivalent to x-6/x+5≥x+7/x+3?
yawa3891 [41]
To find equivalent inequalities you have to work the inequality given.

The first step is transpose on of sides to have an expression in one side and zero in the other side:

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--------- ≥  --------
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=>

  x - 6          x + 7
--------- -  --------   ≥ 0
  x + 5       x + 3

=>

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--------------------------------------- ≥ 0
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=>

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4 0
3 years ago
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