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Law Incorporation [45]
3 years ago
6

PLZ help me it's is sooo hard

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0
I'm not sure for number one, but for number 2 the answer to that one is the second tallest on the chart or on the histogram. For number 3 I'm not sure because i cant see the numbers there too blurry. I'm sorry but i hope i got the second one correct.
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Let n = 14.<br><br> What is the value of y in the equation y = 2 × n + 3?
Ghella [55]

n=14 \\y=2\times n +3=2\times14+3 \\y=24+3\Longrightarrow y=\boxed{27}

5 0
3 years ago
Find the surface area. SHOW WORK
anastassius [24]
22x12x5 and you will get the answer
4 0
3 years ago
The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month. Assume that this mean was base
Effectus [21]

Answer:

a) 17.09 hours

b) The 95% confidence interval estimate of the population mean flying time for the Pilots is between 31.91 hours and 66.09 hours

Step-by-step explanation:

We have the standard deviation of 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 = 49 - 1 = 48

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 48 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0106

The margin of error is:

M = T*s = 2.0106*8.5 = 17.09

s is the standard deviation of the sample. 17.09 hours is the answer for a.

The lower end of the interval is the sample mean subtracted by M. So it is 49 - 17.09 = 31.91 hours

The upper end of the interval is the sample mean added to M. So it is 49 + 17.09 = 66.09 hours

The 95% confidence interval estimate of the population mean flying time for the Pilots is between 31.91 hours and 66.09 hours

8 0
3 years ago
What is 0.06% as a decimal and a fraction
mezya [45]
<span>Step 1: 0.06 = 6⁄100</span> 
<span>Step 2: Simplify 6⁄100 = 3⁄50</span><span> 
hope this helps:)

</span>
6 0
3 years ago
Read 2 more answers
2,99,790,000 in scientific notation
ludmilkaskok [199]
So we have 299790000, we want to have only one digit in front of the decimal, 2.9979x10^9

hope this helps :)
3 0
3 years ago
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