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vampirchik [111]
2 years ago
15

It is generally believed that nearsightedness affects about ​% of children in a certain region. a school district tests the visi

on of incoming kindergarten children. how many would be expected to be​ nearsighted? what is the standard deviation for the number of nearsighted children in this​ group?
SAT
1 answer:
Tom [10]2 years ago
7 0
What region is the question talking about?
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209 divided by 11 is 19.
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Brianna is working on her homework. her assignment is to come up with four representations for an exponential function of her ch
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<h3>What is an exponential function?</h3>

An exponential function is in the form:

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Brianna is working on her homework. using an exponential function in the form y = abˣ

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true

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3 years ago
What is the best way to arrange the magnets on the train and on the track so that the model train levitates? flat, so that the n
Leno4ka [110]

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<h3>What is the law of magnetism?</h3>

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Based on the law of magnetism, the best way to arrange the magnets on the train and on the track, so as to allow the model train levitate is flat, as this would make the north (N) pole of the magnets on the train point up and the north (N) poles of the magnets on the track point down.

Read more on law of magnetism here: brainly.com/question/14945557

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<u>Complete Question:</u>

Jolie builds a model of a maglev train. She uses disc magnets to levitate the train. A disc magnet has its north and south poles on its faces, as shown.

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