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antoniya [11.8K]
3 years ago
7

Your friend solves the inequality. Is your friend correct? Helpppppp Explain answer!

Mathematics
1 answer:
Lunna [17]3 years ago
3 0

Answer: mhm Maybe import a photo because I don’t get u

Step-by-step explanation:

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120

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Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was
frozen [14]

Answer: 101.69

Step-by-step explanation:

Formula we use to find the z-score :-

z=\dfrac{x-\mu}{\sigma}    (1)

Given : \mu=90

\sigma=7

Daniel's z score : z= 1.67

Let x be the raw score for Daniel's exam grade, then substitute the values of \mu,\ \sigma\ and \ x in (1), we get

1.67=\dfrac{x-90}{7}\\\\\Rightarrow\ x-90=7\times1.67\\\\\Rightarrow\ x=11.69+90=101.69

Hence, the raw score for Daniel's exam grade = 101.69

3 0
3 years ago
Can somebody help me please?
Nina [5.8K]

Answer:

it's a that's the answer

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2 years ago
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