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3 years ago

The data for air traffic in ten days at a busy airport is recorded as follows. Make a stem-and-leaf plot for the given data.

Mathematics

1 answer:

Shalnov [3]3 years ago

6 0

Answer:

Stem and Leaf Plot:

Stem Leaf

28 1 5 7 8

29 3 4 5

30 6 6 9

Minimum: 281

Maximum: 309

Range: 28

Count: 10

Sum: 2944

Mean: 294.4

Median: 293.5

Mode: 306

Standard Deviation: 9.709

Variance: 94.27

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Answer:

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Step-by-step explanation:

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2 years ago

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This is the answer
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3 years ago

Find four consecutive positive integers such that the product of the first and fourth is four less than twice the first multipli

r-ruslan [8.4K]

Four consecutive integers... n, n+1, n+2, n+3.

The product of the 1st and 4th is four less than twice the 1st multiplied by the 4th.

n(n+3)=2n(n+3)-4 perform indicated multiplications...

n^2+3n=2n^2+6n-4 subtract n^2 from both sides

3n=n^2+6n-4 subtract 3n from both sides

n^2+3n-4=0 factor

n^2-n+4n-4=0

n(n-1)+4(n-1)=0

(n+4)(n-1)=0, and since n>0

n=1

So the four numbers are 1, 2, 3, 4

check...

1(4)=2(1)4-4

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