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s344n2d4d5 [400]
2 years ago
15

These points are linear.

Mathematics
2 answers:
Oxana [17]2 years ago
8 0

Answer:

Step-by-step explanation:

Pick any two points.

(2 ,7)  & (4, 13)

x₁  = 2  ; y₁ = 7    & x₂ = 4  ; y₂ = 13

Slope =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}

         =\dfrac{13-7}{4-2}\\\\\\=\dfrac{6}{2}\\\\\\= 3

posledela2 years ago
4 0

Answer:

3

Step-by-step explanation:

Select an ordered pair: (2, 7)

Select another ordered pair: (6, 19)

slope = (difference in y)/(difference in x)

slope = (19 - 7)(6 - 2)

slope = 12/4

slope = 3

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11.42 boxes

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For the next unique toy, there is now a 3 in 5 chance of getting it:

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E_4 = (\frac{2}{5})^{-1} = 2.5

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The expected number of boxes to obtain a full set is:

E=E_1+E_2+E_3+E_4+E_5\\E=1+1.25+1.67+2.5+5\\E=11.42\ boxes

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