4 years ago

Which fraction converts to a repeating decimal number? A. 1/12 B. 7/8 C. 14/25 D. 17.20 E. 6/10

Mathematics

2 answers:

RoseWind [281]4 years ago

6 0

You’re answer is 1/12

lara31 [8.8K]4 years ago

3 0

The answer to the question is a.

1/12= .08333333333....

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A new test has been developed to detect a particular type of cancer. The test must be evaluated before it is put into use. A med

Troyanec [42]

The tree diagram of the problem above is attached
There are four outcomes of the two events,

First test - Cancer, Second Test - Cancer, the probability is 0.0396
First test - Cancer, Second Test - No Cancer, the probability is 0.0004
First test - No Cancer, Second Test - There is cancer, the probability is 0.0096
First test - No cancer, Second Test - No cancer, the probability is 0.9054

The probability of someone picked at random has cancer given that test result indicates cancer is $\frac{0.0396}{0.0396+0.0096}= \frac{33}{41}$

The probability of someone picked at random has cancer given that test result indicates no cancer is $\frac{0.0396}{0.0004+0.9504} = \frac{99}{2377}$