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2 years ago

What are the three consecutive even integers that add up to 156

1 answer:

5 0

First, divide 156 by 3 (the amount of consecutive integers).
156 / 3 = 52
The middle consecutive integer is 52. Add and subtract 52 by 2.
52 - 2 = 50
52 + 2 = 54
Your three integers are 50, 52, and 54. Have an awesome day! :)

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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

7 0

3 years ago

CAN ANYONE PLEASE HELP ME WITH MY HOMEWORK ILL DO ANYTHING JUST PLEASE HELP ME

nasty-shy [4]

Answer:

Step-by-step explanation:

4x9=36

5x9=45

6x9=54

7x9=63

5 0

2 years ago

Read 2 more answers

Brianna just finished a great meal at a restaurant in Wisconsin. The sales tax in Wisconsin is 5%, and it is customary to leave

emmainna [20.7K]

15% = 0.15
tip = 15 * 0.15 = 2.25

5% = 0.05
tax = 15 * 0.15 = 0.75

total = 15 + 0.75 + 2.25 = $18

7 0

2 years ago

The cost for operating the childminding room is $350 per day. In order to cover the daily operating costs how many childminding

Anna [14]

At least 42 children.

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2 years ago

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What is the interval notation for the graph shown below?

Scrat [10]

<h3>Answer: Bottom left corner (southwest corner)</h3>

$(4, \infty)$

The left endpoint is x = 4, but we don't include this endpoint because of the open hole. We use a parenthesis to indicate "don't include the endpoint"

The right endpoint is positive infinity. We always use a parenthesis with either infinity since we cannot reach infinity

The interval from 4 to infinity is written as $(4, \infty)$ which is like saying $4 < x < \infty$

7 0

2 years ago