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natta225 [31]
2 years ago
10

What is the nearest ten thousand, the population of Vermont was estimated to be about 620,000 in 2008 . What might have been the

exact population of Vermont in 2008
Mathematics
1 answer:
Degger [83]2 years ago
6 0

Answer:

618,000 might be the exact population of Vermont in 2008

Step-by-step explanation:

* <em>Lets explain the rule of rounding to the nearest ten thousands</em>

- To round numbers to the nearest ten thousand, make the

  numbers whose last four digits are 0001 through 4999 into the

  next lower number that ends in 0000

- Ex: 83,525 rounded to the nearest ten thousand would be

 80,000.

- Numbers that have the last four digits of 5000 or more should

 be rounded up to the next even ten thousand

- Ex: The number 58,988 rounded to the nearest ten thousand

  would be 60,000

* <em>Lets do that in the problem</em>

∵ The number is 620,000 after rounded to the nearest

   ten thousands

∴ We can chose any number whose last four digits are 00001

  through 4999 as 624,000 <em>OR</em> 5000 or more as 618,000

∴ 618,000 might be the exact population of Vermont in 2008

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The local museum had 20000 visitors in 1990 . The number of visitors has decreased by 3% each year since 1990 . Enter a function
oksano4ka [1.4K]

Answer:

It is m(x) = 20,000(0.97)^x.

Step-by-step explanation:

After 1990, each year has (100-3) = 97% ( or 0.97) of visitors that it had the previous year.

So m(x) = 20,000(0.97)^x   (answer).

7 0
2 years ago
Read 2 more answers
The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.
Alexeev081 [22]

Answer: 387

Step-by-step explanation:

Given : Standard deviation: \sigma=2.3

Margin of error : 0.15

Critical value for 80% confidence interval = 1.2816

Required minimum sample size : n=(\dfrac{z_{\alpha/2}\cdot \sigma}{E})^2

\\\\=(\dfrac{1.2816\times2.3}{0.15})^2\\\\=386.16966144\approx387

Hence, the minimum sample size required to estimate the mean usage of water = 387

4 0
2 years ago
As the number of pages in a photo book increases, the price of the book also increases. There is an additional shipping charge o
wlad13 [49]

Answer:

22

Step-by-step explanation:

Solve the inequality  (20 + 0.5x) + 0.15(20 + 0.5x)   ≤ $62.10 for x:

20 + .5x + 3 + 0.75x ≤ 62.10

Combining the x terms, we get:

20 + 3 + 1.25x ≤ 62.10.

Combining the constants on the left:

23 + 1.75x ≤ 62.10

Combining the constants:

1.75x = 39.10

Solving for x:  39.10/1.75 = 22.34

Thus, the max number of whole pages she can have in her book is 22.

4 0
2 years ago
If 2 and 4 each divide q without remainder which of the following must q divide without remainder
Contact [7]
<span>i would say that it is because the answer cannot be determined from the information given.</span>
8 0
2 years ago
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Determine the margin of error, m , of a 99% confidence interval for the mean IQ score of all students with the disorder. Assume
madreJ [45]

Answer:

E= 6.45

standard deviation is σ = 15,

The critical value is z(α/2) = 2.58.

Step-by-step explanation:

Margin error is the value that is lie above and below the sample.It gives percentage of numbers.Its is the product of critical value standard deviation and standard error of statistic.

General formula for the margin of error is

Margin of error = critical value  ×   standard error of statistic

                        = z \alpha /2  ×   σ √n

z-value from two tailed is listed below:

From the table of standard normal distribution, probability value of 0.10.

row and column values gives the area to the two tail of z.

The positive z value is 2.58.

standard deviation is σ = 15,

The critical value is z(α/2) = 2.58.

after putting these vales we obtain the margin of error value that is

E= 6.45

7 0
2 years ago
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