3 years ago

Can someone pls help and show workings

1 answer:

8 0

Answer:

Step-by-step explanation:

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3 years ago

zmey [24]

7x - 4 = 31
7x = 31 + 4
7x = 35
x = 35/7
x = 5

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3 years ago

victus00 [196]

Var(y)=k(1-p)/p^2
where y is the random variable
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0<p<1

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4 years ago

gogolik [260]

First term = 5
Second term = 5 x 5rn = 25rn
Third term = 25rn x 5rn = $125 r^{2} n^{2}$
Fourth term = $125 r^{2} n^{2}$ x 5rn = $625 r^{3} n^{3}$

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4 years ago