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Ivan
3 years ago
13

Is 11/12 a rational or irrational number

Mathematics
1 answer:
Reika [66]3 years ago
6 0

Answer:

Rational

Step-by-step explanation:

A rational number is any number that can be written as a ratio of integers.  11 and 12 are both integers, so 11/12 is rational.

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Among 81678167 cases of heart pacemaker​ malfunctions, 457457 were found to be caused by​ firmware, which is software programmed
katrin2010 [14]
(Note: This seems when question was pasted from its source the in text box, the numbers were pasted twice. Solving the question considering only one occurence of number i.e using 8167 instead of 81678167. However, method will be same regardless of the numbers listed)

Part a)
Total number of cases = <span>8167
Number of Malfunctions due to firmware = </span>457<span>

Probability that a malfunction is because of firmware = </span>\frac{457}{8167}

Probability that the malfunction is not because of firmware = 1 - Probability that a malfunction is because of firmware = 1- \frac{457}{8167}= \frac{7710}{8167}

Probability of selecting 3 pacemakers without a malfunction because of firmware = ( \frac{7710}{8167} )^{3} = 0.841


Part b)
The probability of selecting 3 pacemakers without any malfunction because of firmware is 0.841, which is a high probability. So we can say, yes this procedure is very likely to result in entire batch being accepted. The probability near 1 is considered a very higher probability for an event and the probability near 0 is considered a very lower probability for an event. 
6 0
3 years ago
X-4/10=7/5<br> Plz solve these
iragen [17]
(x-4)/10=7/5
x-4=70/5
x-4=14
x=18

here you go, practice it once or twice. good luck
3 0
3 years ago
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If the point (x, y) is in Quadrant IV, which of the following must be true?
gayaneshka [121]

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2 years ago
Meg withdrew $300 from her account on Saturday. Then she deposited $174.83 into her account on Sunday.
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C

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