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wolverine [178]
2 years ago
15

Diego took a survey to find out how many students plan to go to a school band concert. There are more than 1,000 students in his

school. He selected a sample by asking the first 50 students he met at band practice.
Mathematics
2 answers:
puteri [66]2 years ago
6 0

Answer:

The one above is wrong

The actual answers are A and D

Gennadij [26K]2 years ago
4 0

Answer: N/A

Step-by-step explanation: We need more info to solve this problem

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The perimeter of a square is represented by 20n-8. Write an expression that will represent each side of the square.
Over [174]

Answer:

n=3

Step-by-step explanation:

20+20+20 length +width+ height

20×3

5 0
2 years ago
Read 2 more answers
How many different 10 person committees can be selected from a pool of 23 people?
Salsk061 [2.6K]

We're going to be using combination since this question is asking how many different combinations of 10 people can be selected from a set of 23.

We would only use permutation if the order of the people in the committee mattered, which it seems it doesn't.

Formula for combination:

C(n,r)=\dfrac{n!}{(n-r)!r!}

Where n represents the number of objects/people in the set and r represents the number of objects/people being chosen from the set

There are 23 people in the set and 10 people being chosen from the set

C(23,10)=\dfrac{23!}{(23-10)!10!}

=\dfrac{23!}{13!\times10!}

Usually I would prefer solving such fractions by hand instead of a calculator, but factorials can result in large numbers and there is too much multiplication. Using a calculator, we get

=1,144,066

Thus, there are 1,144,066 different 10 person committees that can be selected from a pool of 23 people. Let me know if you need any clarifications, thanks!

~ Padoru

4 0
3 years ago
Read 2 more answers
A box is placed on the floor.
Sedaia [141]
Hiiii hope it helps
8 0
2 years ago
The police in a certain city are investigating whether the proportion of minor traffic accidents is greater on Friday nights tha
Ganezh [65]
What city lol? sorry i just need to answer so i can ask question bc i’m lost lol
8 0
2 years ago
Solve the system of linear equations below 2x-y=0 3x-2y=-3
Lynna [10]
2x - y = 0
2x = y

3x - 2(2x) = -3
3x - 4x = -3
-x = -3
x = 3

2(3) = y
6 = y
3 0
3 years ago
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