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Assoli18 [71]
3 years ago
13

Need help with question 1 and 2 PLEASEEEE

Mathematics
1 answer:
aksik [14]3 years ago
7 0

Answer:

P, M, N and C are coplanar, because they are on the same plane.

Noncollinear, because they are not on the same line.

Hope this helps :)

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The batteries from a certain manufacturer have a mean lifetime of 850 hours, with a standard deviation of 70 hours, assuming tha
matrenka [14]

To answer (a), we will need to find the Z value for 710 hours and 990 hours.

\begin{gathered} For\text{ 710} \\ Z\text{ = }\frac{x-\mu}{\sigma} \\ \text{    = }\frac{710-850}{70} \\ \text{    = -2} \\ p\text{ =0.0228 } \\ For\text{ 990:} \\ Z\text{ = }\frac{990-850}{70} \\ \text{ =2} \\ p\text{ = 0.9772} \end{gathered}\begin{gathered} To\text{ find P \lparen–2 \le Z \le 2\rparen} \\ =\text{ 0.9772 -0.0228} \\ =\text{ 0.9544} \\ =95.44\% \end{gathered}

B) 68% of data lies between one standard deviation of the mean.

850 +70 = 920

850 - 70 = 780

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1 year ago
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lys-0071 [83]

Answer:

I have made it in above pic

7 0
3 years ago
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Looking for some furniture for her new apartment, Susan visits the local swap meet in search of something cheap. Knowing that mo
liraira [26]
Using the formula for interest:

F = P (1 + r/n)^t

Where:
F = future value
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Substituting the given values:
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To obtain the interest, we subtract the principal value from the future value. This is shown below:

Interest = 205.33 - 200 = 5.33

Among the choices, the answer is A.
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3 years ago
Solve for x. help please lol
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Maybe you should try 18 it might work because it will all be equal






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Answer:

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