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arlik [135]
2 years ago
5

Simplify the following ​

Mathematics
2 answers:
andriy [413]2 years ago
7 0

Answer:

29/12

Step-by-step explanation:

hello :

2/3  +5/6  +11/12 = (2×4)/(3×4)  + (5×2)/(6×2)  + 11/12

2/3  +5/6  +11/12 = 8/12  +10/12  +11/12 = (8+10+11)/12

2/3  +5/6  +11/12 = 29/12

Elodia [21]2 years ago
5 0

<u>Answer:</u>

2\frac{5}{12}

<u>Step-by-step explanation:</u>

To add fractions, we have to make sure that they have the same denominators. To do that, we have to find their lowest common multiple (LCM).

The LCM of 3, 6, and 12 is 12.

Then we have to multiply the numerator and denominator of each fraction by a number so that the denominator becomes the LCM (12).

\frac{2}{3}  + \frac{5}{6} + \frac{11}{12}

⇒ \frac{2 \times 4}{3 \times 4}  + \frac{5 \times 2}{6 \times 2} + \frac{11 \times 1}{12 \times 1}

⇒  \frac{8}{12}  + \frac{10}{12} + \frac{11}{12 }

⇒ \frac{8+10+11}{12}

⇒ \frac{29}{12}

⇒ \bf 2\frac{5}{12}

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Answer:

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

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In which

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For this problem, we have that:

560 random tests conducted, 26 employees failed the test. This means that n = 560, \pi = \frac{26}{560} = 0.046

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The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 - 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.025

The upper limit of this interval is:

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The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

5 0
4 years ago
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Answer:

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Step-by-step explanation:

5 ( 1 + X) = 5x + 5

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Mr.Robin assign 3/4 hour of homework each day to his students for 4 days in a row. How many total hours of homework does Mr.Robi
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What is the radius of the circle? The circumference is 615.44.
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Step-by-step explanation:

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