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oee [108]
3 years ago
14

The line of reflection is y=

Mathematics
1 answer:
Trava [24]3 years ago
6 0

Answer:

y = \frac{1}{-1}x + 0    or     y = \frac{1}{-1}x

Step-by-step explanation:

y = mx + c

m = \frac{y_{2} -y_{1}}{x_{2} - x_{1} } }

(x_{1},y_{1}) = (-1,1)\\(x_{2},y_{2}) = (-2,2)

m = \frac{2 - 1}{(-2) - (-1)}

m = \frac{2 - 1}{-2 +1 }

m = \frac{1}{-1}

c = 0

y = \frac{1}{-1}x + 0    or     y = \frac{1}{-1}x

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33. Suppose that the scores on a statewide standardized test are normally distributed with a mean of 78 and a standard deviation
tino4ka555 [31]

Given the scores on a statewide standardized test are normally distributed

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Standard deviation = σ = 3

Normalize the data using the z-score by using the following formula and chart:

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The percentage when (z < -2) = 0.5 + 2 = 2.5%

(d) between 75 and 84

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3 0
1 year ago
Please help ? I am not sure of it
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Answer:

i believe thats correct

Step-by-step explanation:

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