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andriy [413]
3 years ago
12

1) Given the data 12, 39, 21, 18, 24, 17, 12, 25:

Mathematics
1 answer:
nignag [31]3 years ago
8 0
In this data set, the outlier is 39 because it's value is not close to any of the other values.

The mean with the outlier is 12+12+17+18+21+24+25+39 = 168
     168/8 = 21

The mean without the outlier is 12+12+17+18+21+24+25=129
129/7 = 18.4

These are choice C.
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A bullet with a mass of 0.005 kg is shot at a speed of 40
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Answer:

combined velocity of the system = 0.033 m/s.

Step-by-step explanation:

taking the bullet and block as single system since there is no external force involved momentum is conserved .

initial momentum of the bullet = mv

where m is the mass of bullet and v is velocity of bullet.

and initial momentum of block = 0 since its velocity is 0.

therefore initial momentum of the system = mv

                                                                      = 0.005×40

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when the bullet stick of together with the block let the combined velocity of the system be V

therefore applying conservation of momentum

mv = (M+m)V

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therefore V = 0.033 m/s

7 0
3 years ago
What property is 5x+1=1+5x
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The equation is NOT a conic section
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3 years ago
A set of data has a normal distribution with a mean of 50 and a standard deviation of 8. What percent of the data should fall be
slavikrds [6]
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z = ------------- = -1
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          58-50
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8 0
3 years ago
Read 2 more answers
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1st  day                 = 1/12
2nd day                 =  2/12
3rd  day                =  3/12
4th day                 =   4/12
5th day                 =   5/12
6th day        would be = 6/12

If it continues in that order, the sum of the walks would total 1 mile when:

They all add up to 12/12

Add =       1/12 + 2/12 + 3/12 + 4/12 = 10/12

That is still not up to 12/12

So we add up the 5th day also =    10/12 + 5/12 = 15/12  =  1 3/12  miles

So on the 5th day the sum of his walks total at least 1 completed mile.

At least 1 means 1 and above.  As you can see the answer we got 1 3/12 is already more than 1. 
6 0
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