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vova2212 [387]
3 years ago
6

X +9 < 9 and x +7 > 5 But the less than signs are less than or equal to.

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
6 0

Answer:

x<0 less than or equal to and x > -2

Step-by-step explanation:

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The answer is B

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1 .the base of a trapezoid are 11 meter and 14 meters.its height is 10 meters . what is the area of the trapezoid?
garik1379 [7]

Answer:11

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A = 25m / 2 * 10m

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8 0
3 years ago
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Answer:

When sampling from a population, the sample mean will: be closer to the population mean as the sample size increases.

Step-by-step explanation:

The sample mean is not always equal to the population mean but if we increase the number of samples then the mean of the sample would become more and more closer to the population mean.

Usually the population size is very huge that is why we select a random sample from the population, care must be taken to ensure randomized sampling otherwise results would not be accurate. After that we have to make sure that the number of samples are enough for the given population size. The number of samples depends upon the shape of the population. If the population is normal than according to central limit theorem, a less number of samples would be enough to ensure normal distribution of sampling mean, otherwise a greater sample size will be required.

8 0
3 years ago
The library has 65400 art books and 9600 science books. What part of all the books are science books
suter [353]

Answer:

9,600/75,000, 16/125

Step-by-step explanation:

art+science=75000

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4 0
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Phoenix [80]

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Step-by-step explanation:

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