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dsp73
3 years ago
10

Derek advises a patient to have a scale every 4 months and a polish every 6 months. If they have a scale and polish today, how l

ong will they wait before they can have both during the same appointment?
Mathematics
2 answers:
Kryger [21]3 years ago
7 0

Answer:

12 months

Step-by-step explanation:

LCM= 2 I4,6

              2,3

           

LCM=12

pls mark as brainliest

jek_recluse [69]3 years ago
4 0

Answer:

12 months time

Step-by-step explanation:

To find this, we simply find the lowest common multiple of the two months

Mathematically, we have the lowest common multiple of 4 and 6 as 12

Thus, the time they would have the appointment together is the simply 12 months

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Suppose that the mean score on a creativity test is 16 and the standard deviation is 4. You are told that the distribution is no
Savatey [412]

Answer:

P(12

And we can find this probability on this way:

P(-1

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Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(16,4)  

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P(12

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z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(12

And we can find this probability on this way:

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5 0
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Step-by-step explanation:

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\pi = \frac{22}{7}  = 3.14

Hence the only unknown variable to find the volume of a sphere is the radius.

5 0
3 years ago
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