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drek231 [11]
3 years ago
9

Hi! can you help me please with this? and process pls?

Mathematics
2 answers:
Liula [17]3 years ago
5 0
1/3=2/6=3/9=4/12
The solution:
1*2/3*2=2/6
1*3/3*3=3/9
1*4/3*4=4/12
Kaylis [27]3 years ago
3 0

Answer:

6, 9, 4

Step-by-step explanation:

1/3 = 2/6 = 3/9 = 4/12

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A survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating (either an onl
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Answer:

The 99% confidence interval is (0.0787, 0.1613).

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 interval 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

Z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

The survey included 411 adults between the ages of 55 and 64, and 50 of them said that they had used online dating. This means that n = 411, \pi = \frac{50}{411} = 0.12

The 99% confidence interval is

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{411}} = 0.12 - 2.575\sqrt{\frac{0.12*0.88}{411}} = 0.0787

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{411}} = 0.12 + 2.575\sqrt{\frac{0.12*0.88}{411}} = 0.1613

The 99% confidence interval is (0.0787, 0.1613).

3 0
4 years ago
How to turn 1/4÷9/10 into a mixed fractions
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10/36 is your answer, and there is not enough in the numerator to change into an mixed fraction.

hope this helps

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4 years ago
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umka21 [38]

Answer: x + (x + 1) + (x + 2) = -21

Step-by-step explanation:

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3 years ago
Can you solve this problem so that you can explain me as best as possible to understand the problem?
Alchen [17]

Answer:

<u>Answer</u><u>:</u><u> </u><u>2</u>

Step-by-step explanation:

\frac{2}{3} (4 \frac{1}{6}  -  \frac{7}{6} ) \\

express the mixed fraction into proper fraction:

{ \boxed{4 \frac{1}{6} =  \frac{(6 \times 4) + 1}{6}   =  \frac{25}{6} }}

then solve simplify:

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