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seraphim [82]
3 years ago
5

In which number is the digit 7 one-tenth as much than it is in the number 175,963? I need it quick

Mathematics
1 answer:
snow_lady [41]3 years ago
6 0

The ten thousandth position.

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Plz i need this rn
Lunna [17]

Answer:

well i feel like she walked the whole thing

because one tenth is 0.1 miles and she walked that distance

Step-by-step explanation:

4 0
2 years ago
Assume the population has a normal distribution. A sample of 25 randomly selected students Has a mean test score of 81.5 With a
Natasha_Volkova [10]

Answer:

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 25 - 1 = 24

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 2.064

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.064\frac{10.2}{\sqrt{25}} = 4.21

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 81.5 - 4.21 = 77.29

The upper end of the interval is the sample mean added to M. So it is 81.5 + 4.21 = 85.71.

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

6 0
3 years ago
Need this answer please
marshall27 [118]

Answer:

line s

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
A radioactive substance decays at a rate of 3.4% per day. If it starts at 200 grams, how
Goshia [24]

Answer: 9

Step-by-step explanation:

Since the percent is decaying, you subtract 3.4 from 100, which gets you 96.6

200(0.966)^9 gets you 146.5 which is less than 150

3 0
3 years ago
The midpoint between x and 27 is -3. What is x?
Alex_Xolod [135]

Answer:

-33

Step-by-step explanation:

well you can use mid point formula and solve for x

or count how many it takes to get from -3 to 27 and add that to -3 the other direction

6 0
2 years ago
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