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siniylev [52]
3 years ago
6

Is 0.71428571428 a rational number

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
6 0

Is 0.71428571428 a rational number?

Yes!

...because it is 5 divided by 7.

5 divided by 7 is 0.71428571428

Alex787 [66]3 years ago
5 0
No, since it a repeating(terminating) decimal, so it is not a rational number.

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what is "one third of a number is 12 less than the number itself" written in a n equation but not solved?
scZoUnD [109]
Let n represent the number.

1/3n = n - 12
4 0
3 years ago
Unknown angle problems with algebra <br> Solve x in the diagram below
Alina [70]

Answer:

35

Step-by-step explanation:

Alright this is like a linear pair. All three angles add up to 180; so this is the set up:

40 + 2x + 30 + 40 = 180

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8 0
3 years ago
How many different 4-question geometry quizzes can a teacher make if there are 7 different problems to test on?.
stich3 [128]

Answer:

35 quizzes

Step-by-step explanation:

We need to determine how many ways we can choose 4 questions out of 7 to make the quizzes.

We do this by using the formula \displaystyle nCr=\frac{n!}{r!(n-r)!} which describes the number of ways we can choose r objects given n possible choices. So, if n=7 and r=4, then:

_4C_7=\frac{7!}{4!(7-4)!}\\\\_4C_7=\frac{7*6*5*4!}{4!*3!}\\\\_4C_7=\frac{210}{6}\\\\_4C_7=35

Hence, the teacher can make 35 different geometry quizzes.

3 0
2 years ago
The medical director of a company looks at the medical records of all 50 employees and finds that the mean systolic blood pressu
Alekssandra [29.7K]

Considering that the value of 126.07 is valid for the population, it is a parameter.

<h3>What is the difference between a statistic and a parameter?</h3>

  • If the measure is defined only for the sample, it is a statistic.
  • If the measure can be defined for the population, it is a parameter.

In this problem, the mean blood pressure is calculated for all employees, which means that it is valid for the population, hence it is a parameter.

More can be learned about parameters and statistics at brainly.com/question/13794992

#SPJ1

8 0
2 years ago
Giving brainliest to CORRECT answer.
klasskru [66]

Answer:

D

If you put the equation into a calculator, it will show a graph of it.

8 0
3 years ago
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