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zhuklara [117]
3 years ago
9

Will give brainly! Please help...

Mathematics
1 answer:
olga55 [171]3 years ago
4 0

a) Choose Z since the σ is smallest . The smaller the σ the higher the consistency. Also we can see that the fewest day the student attendance is higher than other while the highest day is the same with others.                        (L = 130 ,H = 180)


b) Choose W since mean in W is the highest.



-

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4 0
3 years ago
What is the axis of symmetry for f(x) = −5x2 − 20x − 10
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<span>For this case we have the following function:
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<span> To find the axis of symmetry, the first thing to do is to derive the function.
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</span> f '(x) = -10x - 20 &#10;
<span> Equaling zero we have:
</span> -10x - 20 = 0 &#10;
<span> We clear the value of x.
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<span> Answer:
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6 0
3 years ago
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