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MA_775_DIABLO [31]
4 years ago
10

Wendy wanted to understand whether students at her school were in favor of an extended school day. She surveyed some students an

d displayed the results in the table below:
In favor Opposed Undecided
Grade 9 4 7 7
Grade 10 9 11 5
Grade 11 12 13 5
Grade 12 10 5 12
If the principal randomly selects a student in grade 12 from this survey, what is the probability that the student is in favor of extending the school day?

Answers:
0.37
0.27
0.49
0.52
Mathematics
1 answer:
gtnhenbr [62]4 years ago
3 0
If the principal randomly selects a student in grade 12 so this means we focus on just the "grade 12" row. No other rows will be looked at here<span> what is the probability that the student is in favor of extending the school day?"</span> find the number in favor (who also happen to be in grade 12) then divide that number by the total number in grade 12  make sense.          

so it would be .37
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4 years ago
Suppose the population ofthe united states is about 230 million.Is this number closer to ten to the seventh power or ten to the
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4 years ago
!!! Help ASAP please!!!!In DEF, sin D = 24/26 What is cos E?
Georgia [21]

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A

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Cosine is the ratio of "adjacent" to "hypotenuse"

With respect to the Angle E, the adjacent side is FE and the hypotenuse (always opposite side to 90 degree angle) is DE.

We are given DE = 26, but we need FE. We will solve for FE using Pythagorean Theorem, which tells us:

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So, we will have:

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3 years ago
A dvd player that costs a store $28 is marked up by 80% what is the sale price
Ratling [72]

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Which function has a domain of all real numbers except x=npi, where n is any integers
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The domain of the function given are:
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{x∈R: πn<x<π(n+1)}  where n any integer

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R (all real numbers)


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8 0
3 years ago
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