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n200080 [17]
3 years ago
13

Is 3x-6y a direct variation? Identify the constant of variation

Mathematics
1 answer:
Alex777 [14]3 years ago
8 0

Answer:

1

Step-by-step explanation:

1

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Find the percent increase round to the nearest percent <br><br> From 42 acres to 72 acres
Finger [1]

Answer:

58.333333 percent

Step-by-step explanation:

58 percent

I took 42 divided by 72 times 100

5 0
2 years ago
A Rasmussen Reports survey of 1,000 US adults found that 42% believe raising the minimum wage will help the economy. Construct a
vitfil [10]

Answer:

(0.3798, 0.4602)

Step-by-step explanation:

Let p be the true proportion of US adults who believe raising the minimum wage will help the economy. A point estimate for p is \hat{p}=0.42 and a good aproximation (because we have a large sample) for the standard deviation of \hat{p} is \sqrt{\hat{p}(1-\hat{p})/n}=\sqrt{0.42(0.58)/1000}=0.0156. Therefore, a 99% confidence interval for p is given by \hat{p}\pm z_{\alpha/2}\sqrt{\frac{\hat{p}(1-\hat{p})}{n}} where \alpha=0.01 and z_{\alpha/2} is the \alpha/2th quantile of the standard normal distribution, so we have, 0.42\pm z_{0.005}0.0156, i.e., 0.42\pm(-2.5758)(0.0156) or equivalently (0.3798, 0.4602).

6 0
3 years ago
How many inches and does a window
zmey [24]
Well, it depends on the window.
4 0
3 years ago
Read 2 more answers
In a math class with 21 students, a test was given the same day that an assignment was due. There were 12 students who passed th
snow_lady [41]

Answer:

5/9

Step-by-step explanation:

The given is students that failed the test. 5 students completed the homework and failed the test and there is a total of 9 students who failed the test. So, the answer would be 5/9

4 0
3 years ago
What is 4X -3+ 2X plus one minus X +8
garri49 [273]

Answer:

5x + 6

Step-by-step explanation:

4x - 3 + 2x + 1 - x + 8

= 4x + 2x - x -3 + 1 +8

= 5x + 6

5 0
3 years ago
Read 2 more answers
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