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igor_vitrenko [27]
3 years ago
4

A community organization wants to determine area support for the construction of a new skate

Mathematics
2 answers:
Juliette [100K]3 years ago
3 0

Answer:

Assign each taxpayer in town a number and then randomly select 500 of these  numbers.

Step-by-step explanation:

The best way to randomly choose these 500 people is to assign each taxpayer in town a number and then randomly select 500 of these  numbers.

A random sample simply refers to a subset of a population where each participant of the subset has an equal chance of being chosen.

Assigning each taxpayer in town a number and then randomly select 500 of these numbers will ensure there is an equal probability of each taxpayer being chosen

Tju [1.3M]3 years ago
3 0

Answer:

I think the answer is D) Assign each taxpayer in town a number and then randomly select 500 of these numbers.

Step-by-step explanation:

the second option is a little bias because if you survey only people who go to the skate park then you'll get answers like of course because they like and enjoy going to the skate park, if you want a more varied answers then d would be correct because it has more random answers.

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as far as I can tell, is simply asking to write two more expressions, that are equivalent to the provided one, namely, grab the provided one and expand it, if you simplify the expanded version, you'd end up with the provided, for example

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so let's do 6a1, 6a3 and 6a5.

\bf \boxed{6a.1}~\hfill \stackrel{changing}{\cfrac{29\cdot 3}{30\cdot 3}}\implies \stackrel{one}{\cfrac{87}{90}}~\hfill \stackrel{changing}{\cfrac{29\cdot 7}{30\cdot 7}}\implies \stackrel{t wo}{\cfrac{203}{210}} \\\\\\ \boxed{6a.3}~\hfill \stackrel{changing}{\cfrac{15\div 3}{30\div 3}}\implies \stackrel{one}{\cfrac{5}{10}}~\hfill \stackrel{changing}{\cfrac{15\div 5}{30\div 5}}\implies \stackrel{two}{\cfrac{3}{6}}

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3 years ago
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1. distribute the 3 into the variable and number in the equation
to do this..
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3. multiply 3 by -2 (obtain the answer of -6)
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3 years ago
Read 2 more answers
A 168-cm tall person is 2 cm in Ming’s model. How high should his model swing be if the actual swing is 231 cm high?
serious [3.7K]

Answer:

The model swing should be <u>2.75 cm</u> high.

Step-by-step explanation:

Given:

A 168-cm tall person is 2 cm in Ming’s model.  

If the actual swing is 231 cm high.

Now, to find how high should his model swing be.

Let the model swing be x\ cm.

So, 168 cm tall person is equivalent to 2 cm.

Thus, 231 cm actual swing is equivalent to x\ cm model swing.

Now, we get the height of the swing in the model by using cross multiplication method:

\frac{168}{2} =\frac{231}{x}

<em>By cross multiplication:</em>

⇒ 168x=462

<em>Dividing both sides by 168 we get:</em>

⇒ x=2.75\ cm.

Therefore, the model swing should be 2.75 cm high.

3 0
4 years ago
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