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Free_Kalibri [48]
3 years ago
15

What is value of this expression ​

Mathematics
2 answers:
Delvig [45]3 years ago
5 0

Answer:

2/0, which would be undefined.

Step-by-step explanation:

KiRa [710]3 years ago
3 0

Answer:

Step-by-step explanation:

= 4 + (-2)/ -3 + 3

= 4 - 2/ -3 + 3

= 2/0 If the denominator is 0, the value is undefined.

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Calls to a customer service center last on average 2.8 minutes with a standard deviation of 1.4 minutes. An operator in the call
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Answer:

The expected total amount of time the operator will spend on the calls each day is of 210 minutes.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

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

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Suppose we have n values from a normally distributed variable. The mean of the sum of all the instances is M = n\mu and the standard deviation is s = \sigma\sqrt{n}

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This means that n = 75

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Step-by-step explanation:

We know...

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