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4 years ago

How to find the spread in math???

Mathematics

1 answer:

Luda [366]4 years ago

5 0

Answer:

interquartile range

range

variance

These are all different ways to find the spread

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Expand. (n^2 -3n +1)(2n + 3) =

sukhopar [10]

Answer:

$2n^3-3n^2-7n+3$

Step-by-step explanation:

$(n^2 -3n +1)(2n + 3) =\\n^2(2n) - (3n)(2n) + (1)2n + (n^2)(3) + (-3n)(3) + (1)(3)=\\2n^3 - 6n^2 + 2n + 3n^2 -9n + 3 =\\$

Collecting like terms and simplifying yields

$2n^3-3n^2-7n+3$

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2 years ago

Juan read 300 pages in 5 days which reading rate is equivalent

Naily [24]

Answer:

600 pages in 10 days

Step-by-step explanation:

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3 years ago

10. 10x + 5y = 15 y = 2x - 3

TiliK225 [7]

Answer:

if your looking for x then

Step-by-step explanation:

first add in the y by doing 10x+5(2x-3)=15 then 10x+10x-15=15 then 20x-15=15 then 20x=30 then divided by 20 for both sides which gets you x=30/20 or 1 1/3

6 0

4 years ago

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In this triangle, cosA/cosB = AB = 4.24 BC= 3 AC = 3 <C 90deg.

Ksju [112]

Answer:

Step-by-step explanation:

$\cos A=\frac{3}{4.24} \\ \\ \cos B=\frac{3}{4.24} \\ \\ \frac{\cos A}{\cos B}=1$

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2 years ago

A farmer must transport a fox, goose and bag of beans from one side of a river to

Travka [436]

Answer:

The man in the goose cross the river, with the fox and the beans together, he leaves the goose on the other side and goes back across.

The man then takes the fox across the river, and since he can’t leave the fox in the goose together, he brings that goose back.

Again, since the goose and the beans can’t be left together, he leaves the goose and he takes the beans across and leaves with the fox.

He returns to pick up the goose and heads back across the river one last time.

Step-by-step explanation:

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3 years ago

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