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SVEN [57.7K]
3 years ago
6

Leo wants to determine the average number of texts middle school students send in a day. Since all middle school students are en

rolled in history, he randomly surveyed 4 students from each of Mr. Barnes’s eighth-grade history classes. Ms. Lopez and Mrs. Frank also teach eighth-grade history. What should Leo do to ensure his sample is representative of all middle school students?
He should take the sample as is because he randomly surveyed students in each of Mr. Barnes’s classes.
He should also take a sample from Ms. Lopez’s and Mrs. Frank’s classes so that each student has the same chance of being chosen.
He should also take a sample from each of the other history classes in all of the other grades in the middle school.
He should survey all the students in all the history classes to make sure he collects enough data.
Mathematics
2 answers:
Svet_ta [14]3 years ago
7 0

Answer:

The answer is D!!!!!!!!!

rewona [7]3 years ago
3 0

Answer:

D is the correct answer. Have a great day!!! :)

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The sum of 5 consecutive numbers is 200. What is the smallest number?​
Vikentia [17]

Answer:

Hey!

Your answer is 44!

Step-by-step explanation:

Here's how...

x+(x+2)+(x+4)+(x+6)+(x+8)=200

5x+20=200  (minus 20 on both sides to get 5x by itself)

5x=180  (divide both sides by 5 to get just x)

x=36

5th number - x+8=36+8=44 (simple substitution and addition)

I HOPE THIS HELPS!

6 0
3 years ago
Read 2 more answers
Al has 324 square paving stones that he plans to use to conduct a square patio how many paving stones wide will the patio be
xxTIMURxx [149]
Since it is a square, it will be 18 stones wide and 18 stones long, to get you an area of 324.
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3 years ago
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Volgvan

Answer:

Step-by-step explanation:

You need to mutiply and slove the promble than you will get the answer

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Step-by-step explanation:

8 0
3 years ago
What is the domain of the function y = square root x+6 -7?
salantis [7]

Answer:

  -6 ≤ x < ∞

Step-by-step explanation:

You want the domain of the function y = √(x+6) -7.

<h3>Domain</h3>

The domain of a function is the set of x-values for which the function is defined. On a graph, it is the horizontal extent of the graph.

The square root function is undefined for negative arguments, so that limits the domain of the given function:

  x+6 ≥ 0

  x ≥ -6 . . . . . domain of the given function

__

<em>Additional comment</em>

When the domain is written in interval notation, both the left and right ends of the interval must be specified.

  [-6, ∞)

The square bracket identifies -6 as being part of the domain. The parenthesis is used with ∞, because that number has no specific value.

8 0
2 years ago
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