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Nastasia [14]
3 years ago
15

PLEASE HELPPPP!!!!!! 30 points+Brainliest MUCH HELP NEEDED ASAP

Mathematics
1 answer:
tia_tia [17]3 years ago
3 0
(x*2 + 11x)+ 24
half of 11 is 5.5*2
(x*2+ 11x + 30.25 ) + 24 -30.25
(x*2 + 11x) -6.25
so

Vertex (11,-6.25)


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Patrisse and Makayla began arguing about who did better on their tests, but they couldn't decide who did better given that they
hodyreva [135]

a)  Z-score for Patrisse test grade is 0.7288

b) z-score for Makayla test grade is -0.7441

c) Patrisse did better.

<h3>What is z- score?</h3>

A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of values.

Z-score for Patrisse test grade.

X= 81.4, \mu = 72.8, \sigma = 11.8

Z= x-  \mu /  \sigma

Z= 81.4 - 72.8/ 11.8

Z= 0.7288

Now, z-score for Makayla test grade.

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Z= x-  \mu /  \sigma

Z= 60.6 - 67/ 8.6

Z= -0.7441

Hence, Patrisse did better as she had better z- score.

Learn more about this concept here:

brainly.com/question/23261840

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Answer:

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Read 2 more answers
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