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Maru [420]
3 years ago
15

Suppose the scores on a history quiz are normally distributed with a mean of 73 and a standard deviation of 4.

Mathematics
2 answers:
timurjin [86]3 years ago
7 0

Answer:

I really wasn't sure on this one, and I got it wrong on the quiz but the answer is the yellow option which is <u>Scores above 77</u>

explanation:

s2008m [1.1K]3 years ago
6 0
B scores below 75....!!!!
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Is (-a + b)² = a² - 2ab + b² right or wrong, and why?
antiseptic1488 [7]

Answer:

\huge\boxed{\sf Right.}

Step-by-step explanation:

(-a+b)^2

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So,

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Hence, it has been proved that (-a + b)² = a² - 2ab + b².

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
6 0
2 years ago
How do you find the quadratic equation for the roots 3 and 17?
Naily [24]
The roots are 3 and 17 so the distributed equation is

(x-3)(x-17)

distribute 

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I hope I've helped! 
6 0
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