3 years ago

Is -9 a rational number? yes no

Mathematics

2 answers:

Yuri [45]3 years ago

7 0

Answer:

yes

Step-by-step explanation:

Harlamova29_29 [7]3 years ago

5 0

Answer:

Yes

Step-by-step explanation:

-9 is a rational number

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Answer:

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Step-by-step explanation:

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3 years ago

Helen plays basketball. For free throws, she makes the shot 75% of the time. Helen must now attempt two free throws. The probabi

CaHeK987 [17]

Answer: 0.6375

Step-by-step explanation:

Let's assume that the event that she'll make the first shot is given as P(A) while making the second shot is P(B). Therefore, P(A/B) = 0.85

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3 years ago

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I need more information.

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2 years ago

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Nimfa-mama [501]

Answer:

Step-by-step explanation:

Use definition of conditional probability:

$P(A|B)=\dfrac{P(A\cap B)}{P(B)},$

where

A = the student is a freshman,

B = the student is a male

From the table,

$P(B)=\dfrac{4+6+2+2}{4+6+2+2+3+4+6+3}=\dfrac{14}{30}=\dfrac{7}{15}\\ \\P(A\cap B)=\dfrac{4}{4+6+2+2+3+4+6+3}=\dfrac{4}{30}=\dfrac{2}{15}$

So,

$P(A|B)=\dfrac{\frac{2}{15}}{\frac{7}{15}}=\dfrac{2}{7}\approx 0.29=29\%$

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2 years ago