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ss7ja [257]
2 years ago
13

Please guys this is due

Mathematics
1 answer:
sineoko [7]2 years ago
6 0
Do you know Pythagoras theorem
a^2 + b^2 = c^2
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Step-by-step explanation:

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On a standardized exam, the scores are normally distributed with a mean of 79 and a standard deviation of 20. Find the z-score o
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Answer:

z = 2.1

Step-by-step explanation:

z=\frac{x-\mu}{\sigma}\\ \\z=\frac{121-79}{20}\\ \\z=\frac{42}{20}\\ \\z=2.1

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3 years ago
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3 years ago
How would you solve this linear system?
Hoochie [10]

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solution : (x, y ) = ( - 6, 3 )


8 0
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Pls help me with my assignment will give brainliest to best answer
lapo4ka [179]

your answer letter is b

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