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Zarrin [17]
3 years ago
11

-(7z-6)+9z-3 simplify

Mathematics
2 answers:
storchak [24]3 years ago
7 0

Answer:

2x + 3

Step-by-step explanation:

Step 1:

- ( 7z - 6 ) + 9z - 3

Step 2:

- 7z + 6 + 9z - 3

Step 3:

2z + 6 - 3

Answer:

2x + 3

Hope This Helps :)

Bezzdna [24]3 years ago
4 0

Answer:

<h2>2z + 3</h2><h2 />

Step-by-step explanation:

-(7z - 6) + 9z - 3

= - 7z + 6 + 9z - 3

= 2x + 3

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<h3>What is sampling?</h3>

It is is a common statistics practice, when we want to study something from a population, we find a sample of this population.

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In this problem, a sample of randomly selected restaurants should be taken to sell the new hamburger, and then be compared with the ones who sell the old hamburger to see if sales increased, hence the correct option is:

Randomly select 40 restaurants, let each one decide if it wants to sell the new hamburger, and compare sales in those restaurants to sales in the restaurants that chose not to sell the new hamburger.

More can be learned about sampling concepts at brainly.com/question/25122507

3 0
2 years ago
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Korolek [52]

Answer:

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Answer:

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