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kkurt [141]
2 years ago
15

The graph shows the number of each kind of book in Hero's personal library. A book is chosen randomly. What is the probability t

hat the book chosen is a biography?
A)2/15
B)4/15
C)1/30
D)1/4

Mathematics
2 answers:
Tresset [83]2 years ago
7 0

Answer: A is the right answer .Probability of the book chosen is a biography is \frac{2}{15}.


Step-by-step explanation:

According to the given graph or pie chart

The number of biography books=4

Total books= Romance books+ Science fiction books+ Biography books+Adventure books =2+14+4+10=30

Let B be the event of choosing a biography book then

Probability of the book chosen is a biography P(B)==\frac{biography\ books}{total\ books}=\frac{4}{30}=\frac{2}{15}

Therefore, Probability of the book chosen is a biography is  \frac{2}{15}.

VMariaS [17]2 years ago
5 0
14 science fiction, 2 romance, 4 biography, 10 adventure...total of 30 books

P(biography) = biographies / total books = 4/30 which reduces to 2/15 <=
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Answer:

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Step-by-step explanation:

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Now,

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Thus;

(2 - h)² + (-3 - k)² = (4 - h)² + (3 - k)² - - - - - (4)

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h², k² and 9 will cancel out to give;

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h = 3 - 3k

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