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Debora [2.8K]
2 years ago
14

Let A be the set of integers, and let B be the set of rational numbers.

Mathematics
2 answers:
Ilya [14]2 years ago
7 0

Answer:

Step-by-step explanation:

A ∪ B = Q     (set of rational numbers)

A ∩ B = Z      (set of integers)

yaroslaw [1]2 years ago
4 0
Why are you not able to see all of the cellular structures under the microscope? How are the cell diagrams in the text both helpful and limiting in understanding cellular structure

why are you not able to see all of the cellular structures under the microscope? How are the cell diagrams in the text both helpful and limiting in understanding cellular structure

why are you not able to see all of the cellular

why are you not able to see all of the cellular structures under the microscope? How are the cell diagrams in the text both helpful and limiting in understanding cellular structure


why are you not able to see all of the cellular structures under the microscope? How are the cell diagrams in the text both helpful and limiting in understanding cellular structure

structures under the microscope? How are the cell diagrams in the text both helpful and limiting in understanding cellular structure
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A study was conducted in order to estimate μ, the mean number of weekly hours that U.S. adults use computers at home. Suppose a
777dan777 [17]

Answer:

The point estimate for \mu is 8.5 hours.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

In this problem

We are working with a sample of 81 adults, so the point estimae of the mean  is the mean number of weekly hours that U.S. adults use computers at home.

So, the point estimate for \mu is 8.5 hours.

6 0
3 years ago
training for a cycle race in the first week if I was 195 miles in the second we can manage is 243 Miles what is the percentage i
Ivahew [28]

Answer:

24.61%

Step-by-step explanation:

The distance covered in first week = 195 miles

The distance covered in the second week = 243 miles

We need to find the percentage increase in distance​. It can be calculated as follows :

\%=\dfrac{243-195}{195}\times 100\\\\=24.61\%

So, the increase in distance is equal to 24.61%.

4 0
3 years ago
An urn contains 5 white ball and 8 black balls. 4 balls are randomly selected.
larisa86 [58]

|\Omega|=13^4=28561\\ |A|=8^3\cdot5=2560\\\\ P(A)=\dfrac{2560}{28561}\approx9\%

5 0
3 years ago
Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of si
Licemer1 [7]

Answer:

There are both on the same side of the image "O and P"

If this dose not help please tell me!

7 0
2 years ago
Read 2 more answers
What is 85.23 - 2.675 =?
Anna007 [38]
Your answer is 85.555,hope this helped or 85.5 with - over it
8 0
3 years ago
Read 2 more answers
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