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kirza4 [7]
3 years ago
10

Write the augmented matrix for each system of equations.

Mathematics
1 answer:
Illusion [34]3 years ago
3 0
Hello,
Please, see the attached file.
Thanks.

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If your friend leaves your house at a speed of 8mph and two hours later you follow in your car at 40mph, how long will It be bef
dusya [7]

Answer:

  • 1/2 hour
  • 20 miles

Step-by-step explanation:

Your friend has a head start of (2 h)×(8 mi/h) = 16 mi.

When you leave, you gain on your friend at the rate of 40 mph - 8 mph = 32 mph. So, it will take ...

  (16 mi)/(32 mi/h) = 1/2 h

for you to reduce the distance between you to zero.

In that 1/2 hour, you have traveled ...

  (1/2 h)×(40 mi/h) = 20 mi

__

This is the same distance your friend has traveled in 2.5 hours at 8 mi/h.

3 0
3 years ago
How do i solve this??
avanturin [10]

i do not know the answer

8 0
2 years ago
Golf Federation wants to find out which brand of golf balls are the most popular among men living in the United States between t
Ilia_Sergeevich [38]

Using sampling concepts, it is found that the correct option is given by:

B. The Golf Federation's conclusion was not valid because the sample was biased since the male customers all lived in California.

<h3>What is sampling?</h3>

It is a common statistics practice, when we want to study something from a population, we find a sample of this population, which is a group containing elements of a population. A sample has to be representative of the population, that is, it has to involve all segments of the population.

In this problem, the objective is to make an estimate about the most popular brand of golf ball from men all over the United States, however, only customers from California were chosen, hence the sample is not representative and option B is correct.

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

6 0
2 years ago
The table shows the precipitation in December, in inches, for Washington state from 2005 to 2013. What was the mean amount of pr
polet [3.4K]
Hello,
Please, see the attached file.
Thanks.

7 0
3 years ago
Read 2 more answers
A line with slope of 0 is a__?
garik1379 [7]

Answer: A horizontal line

Step-by-step explanation:

a slope of zero means that the line is horizontal, and a horizontal line means you'll get a slope of zero.

:)

8 0
3 years ago
Read 2 more answers
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