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Allisa [31]
3 years ago
11

Point p is the image of p(-2,-2) under a translation by 1 unit to the left and 3 units down

Mathematics
1 answer:
jeyben [28]3 years ago
7 0

Answer:

hi

Step-by-step explanation:

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Write 9 as a power of the base 3
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9 = 3^2
Since 3 squared equals 9, that is how 9 as a power of the base 3 should be written. 
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How many groups of sixty are in two hundred forty-four
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You do 244 divide by sixty and your answer is 4.06
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After the release of radioactive material into the atmosphere from a nuclear power plant at Chernobyl (Ukraine) in 1986, the hay
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3 years ago
A research engineer for a tire manufacturer is investigating tire life for a new rubber compound and has built 16 tires and test
frutty [35]

Answer:

The 95% confidence interval for mean tire life is between 52,368.4 kilometers and 67,911 kilometers.

Step-by-step explanation:

We are in posession of the sample's standard deviation, so we use the students 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 = 16 - 1 = 15

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.68

The margin of error is:

M = T*s = 2.1315*3645.94 = 7771.3

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 60139.7 - 7771.3 = 52,368.4.

The upper end of the interval is the sample mean added to M. So it is 60139.7 + 7771.3 = 67,911.

The 95% confidence interval for mean tire life is between 52,368.4 kilometers and 67,911 kilometers.

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3 years ago
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60 is your answer

Step-by-step explanation:

Good Luck!!!   :D

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3 years ago
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