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Reil [10]
2 years ago
8

5x-3y=20 line paralelal

Mathematics
1 answer:
lawyer [7]2 years ago
3 0

Answer:

Answer is in the attachment..............

Step-by-step explanation:

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35 x 2/7 <br> 14, 5, 7, 10,
dlinn [17]

Answer:

10

Step-by-step explanation:

35 * 2/7

Rewriting

35/7 *2

5*2

10

4 0
3 years ago
4 less than a number g equals 9<br><br><br>Answer fast I will name you the most Brainly please help
Andrew [12]
13 is 4 less than 9.
7 0
3 years ago
An article regarding interracial dating and marriage recently appeared in the Washington Post. Of the 1,709 randomly selected ad
VMariaS [17]

Answer:

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

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.

\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:

323 blacks, 86% of blacks said that they would welcome a white person into their families. This means that n = 323, p = 0.86

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 - 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8222

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 + 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8978

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

5 0
3 years ago
You can buy an 8-pack of paper towels for $8.40 or a 12-pack for $12.36. Which is the better buy?
mixas84 [53]

Answer: 12 pack

Step-by-step explanation:

4 0
3 years ago
Can you find the area for this?
Tanzania [10]

Answer:

b. is the right answer of your question

8 0
3 years ago
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