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lesantik [10]
3 years ago
6

Need help solving this question​

Mathematics
2 answers:
guajiro [1.7K]3 years ago
7 0

Answer:

a =31

I think I'm not sure

Monica [59]3 years ago
6 0

9514 1404 393

Answer:

  a = 36

Step-by-step explanation:

A stationary point is where the function derivative is zero. Here, we have ...

  y' = 2kx -16/x^2 = 0

For x = 2/3, this is ...

  4/3k -16/(4/9) = 0

  4/3k = 36

  k = 27

Then the value of y at that point is ...

  y = 27(2/3)^2 + 16/(2/3) = 12 +24 = 36

The stationary point of interest is (2/3, a) = (2/3, 36). a = 36.

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2 years ago
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What is the standard deviation of a normal distribution, whose mean is 35, in which an x-value of 23 has a z-score of -1.63?
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