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balandron [24]
2 years ago
13

Solve x2 = 144. 72 12 ą12 −12

Mathematics
2 answers:
s344n2d4d5 [400]2 years ago
5 0
A.....72
-------------------------------
erastovalidia [21]2 years ago
5 0
Yeah it is a or 72bbnnn
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23 - C&lt;6<br> I cannot find the answer can someone help me?
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Answer:

C > 17

Step-by-step explanation:

23 - C < 6  

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-C < -17

multiply both sides by -1

(-c) (-1) > (-17) (-1)

C > 17

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3 years ago
A battery has a lifetime that is approximately normally distributed with a mean of 600 hours and a standard deviation of 50 hour
miss Akunina [59]

Answer:

A. Your battery is likely defective since such poor performance is extremely unlikely.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

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Z = \frac{X - \mu}{\sigma}

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If X is more than two standard deviations from the mean, it is considered an unlikely outcome.

In this question, we have that:

\mu = 600, \sigma = 50

Which of the following conclusions is the most appropriate given this information?

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Z = -4

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So the correct answer is:

A. Your battery is likely defective since such poor performance is extremely unlikely.

3 0
3 years ago
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