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Natasha2012 [34]
4 years ago
8

A school wants to attract more students to its media center. The media specialist has been asked to conduct a survey to determin

e which new media items students would like the school to purchase for the media center. Which method should the media specialist use to conduct the survey?
A) Survey the first 25 students in the media center during lunch.

B) Survey a random sample of all students based on student registration.

C) Survey any student who has checked out library materials in the last month.

D) Survey the teachers and staff members.
Mathematics
1 answer:
aliina [53]4 years ago
6 0
I would say C or B but I may be wrong
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Answer:

The first one height vs shoe size.

Step-by-step explanation:

Let's evaluate each choice

1) Generally, it is possible that the taller a person is, that his/her shoe size would generally get bigger also. Hence we can say that it is possible that there is a function correlation between height and shoe size.

2) hair length can be cut down short or left long regardless of the height of a person, so we cannot say for sure that hair length correlates with height. Hence this is probably not a function)

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3 years ago
30 points if you answer this question and please show work !!
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I don't know what is between f(x) and g(x), so (for now) there are two posible answers:

1. f(x)g(x) = f(x)\cdot g(x) - function multiplication:

f(x)g(x)=(2x-3)\cdot(3x+8)=2x\cdot3x+2x\cdot8-3\cdot3x-3\cdot8=\\\\=6x^2+16x-9x-24=\boxed{6x^2+7x-24}

2. f(x)g(x)=f(x)\circ g(x) - function composition:

f(x)g(x) = f(x)\circ g(x) = f\big(g(x)\big)=2(3x+8)-3=2\cdot3x+2\cdot8-3=\\\\=6x+16-3=\boxed{6x+13}


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3 years ago
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Step-by-step explanation:

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