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Keith_Richards [23]
2 years ago
14

Just need help on the ones that are circled .

Mathematics
1 answer:
padilas [110]2 years ago
8 0
2.) QR   3.) SW  6.) TW  8.) 7  9.) 30 11.) please supply a better picture for 11, can't see the problem very well
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Write an equation of the line in​ point-slope form that passes through the given points.
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6 0
3 years ago
Combine like terms.<br> 8y – 4z + 3y + 5z = 11y + [? ]z
RoseWind [281]

Answer:

= 11y + 1z

Step-by-step explanation:

8 0
3 years ago
Question 30
aleksklad [387]

Answer:3

Step-by-step explanation:

6 0
3 years ago
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e
Viefleur [7K]

Answer:

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

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:

Suppose a sample of 1537 tenth graders is drawn. Of the students sampled, 1184 read above the eighth grade level. So 1537 - 1184 = 353 read at or below this level. Then

n = 1537, \pi = \frac{353}{1537} = 0.2297

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}} = 0.2297 - 1.96\sqrt{\frac{0.2297*0.7703}{1537}} = 0.2087

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2297 + 1.96\sqrt{\frac{0.2297*0.7703}{1537}} = 0.2507

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

7 0
3 years ago
Which of the following best defines an output
cricket20 [7]
The answer is B it best explains the definition of output
7 0
2 years ago
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