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aleksley [76]
2 years ago
12

Yoo can someone do this for me

Mathematics
1 answer:
o-na [289]2 years ago
6 0

Answer:

Angle 5

Step-by-step explanation:

Adjacent angles share a common side and a common vertex.

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**find x**<br><br> …………………….
Nikitich [7]

Answer:

x=5

Step-by-step explanation:

4 downgrades to 3 by 1

that means 6 will downgrade to 5 by 1

hope this helped

6 0
3 years ago
What is the value of 38.07÷9.4. <br><br>F)0.1453<br>G)1.453<br>H)14.53<br>I) 145.3
Natasha_Volkova [10]
I'm pretty sure the answer is G. I'm not 100% sure tho. Hope this helps! :)
5 0
3 years ago
8. a number increased by five and then divided by two
Butoxors [25]

Answer:3

Step-by-step explanation:

1+5=6

6/2=3

4 0
3 years ago
Read 2 more answers
in a random sample of 28 people, the mean commute time to work was 31.2 minutes and the standard deviation was 7.3 minutes. assu
antoniya [11.8K]

Answer:

The margin of error of u is of 3.8.

The 99% confidence interval for the population mean u is between 27.4 minutes and 35 minutes.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used 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 = 28 - 1 = 27

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 27 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.7707

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.7707\frac{7.3}{\sqrt{28}} = 3.8

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

The margin of error of u is of 3.8.

The lower end of the interval is the sample mean subtracted by M. So it is 31.2 - 3.8 = 27.4 minutes

The upper end of the interval is the sample mean added to M. So it is 31.2 + 3.8 = 35 minutes

The 99% confidence interval for the population mean u is between 27.4 minutes and 35 minutes.

3 0
3 years ago
The measure of b is ___ ?
Evgen [1.6K]

Answer:

21

Step-by-step explanation:

Use Pythagorean Theorem

If you are looking for leg given the other sides of the right triangle: just do bigger square minus small square

and take square root

so 29^2 - 20^2

And then sqrt it!

sqrt(29^2-20^2)

21

3 0
3 years ago
Read 2 more answers
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