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Minchanka [31]
3 years ago
15

9.5x - 2.5 for x = 9 What is the solution

Mathematics
2 answers:
Oksana_A [137]3 years ago
7 0

Just substitue 9 for x in the expression.

= 9.5(9) - 2.5

= 85.5 - 2.5

= 83

Citrus2011 [14]3 years ago
7 0

Answer:

86

Step-by-step explanation:

The original equation is 9.5 times x - 2.5

9.5(9) - 2.5

9.5(9) = 88.5

88.5 - 2.5 = 86

9.5x - 2.5 = 86

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Answer:

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Step-by-step explanation:

Using binomial probability formula, we have :

P( a out of n ) =ⁿCₐ x pᵃ x qⁿ⁻ᵃ  ------------------------------------------------- (1)

Where n = total number of sample

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From the question:

n =10 , a = 7, p=0.54, q = 1-p = 0.46

Substituting into equation (1) we have:

P (7 out of 10) =  ¹⁰C₇ x (0.54)⁷x (0.46)¹⁰⁻⁷

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Step-by-step explanation:

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