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stellarik [79]
3 years ago
8

A die is rolled 30 timeswhat is the probability of getting x even number

Mathematics
1 answer:
Mama L [17]3 years ago
6 0
Probability of getting an even number (2,4,6) out of (1,2,3,4,5,6) =3/6=1/2

The probability of getting x even number :
(using the binomial probability)


30Cx (1/2)^x . (1/2)^(30-x)
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6 0
3 years ago
Lian has $1.00. She has only nickels and dimes. Lian has twice as many dimes as nickels. How many dimes does she have?
Anna11 [10]

Answer: 8

Step-by-step explanation:

Given

Lian has \$1.00 and she has twice as many dimes as nickels

Suppose she has x nickels

So, the number of dimes is 2x

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5 0
2 years ago
3a2 + 2a + 2a2 is equal to​
yanalaym [24]

Answer:

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Step-by-step explanation:

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  = (3+2)a^2 +2a

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4 0
2 years ago
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Arada [10]
60% add then divide them 

3 0
2 years ago
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Archy [21]

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Step-by-step explanation:

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5 0
2 years ago
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