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Lady bird [3.3K]
3 years ago
14

PLS ANSWER NEEDED IMMEADIATELY< WILL REPORT IF ANY LINKS

Mathematics
2 answers:
vekshin13 years ago
7 0

Answer: looks pretty bell shaped to me

Step-by-step explanation:

JulijaS [17]3 years ago
3 0

Answer:

It is skewed right

Step-by-step explanation:

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Solve for x <br> 6(x-9)=3x+2<br> give your answer as an improper fraction
MAXImum [283]

Answer:

56/3

Step-by-step explanation:

6x-54=3x+2

3x-54=2

3x=56

x=56/3

3 0
3 years ago
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The area of a room is 55.929 square meters if its width is 5.43 meters, what is its length
Anna007 [38]

Answer:

10.3m

Step-by-step explanation:

area of a rectangle is width times length, so you have to rearrange the equation

55.929 ÷ 5.43 = 10.3

3 0
2 years ago
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Several years​ ago, 50​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students r
galina1969 [7]

Answer:

The 95% confidence interval for the proportion of parents that are satisfied with their children's education is (0.4118, 0.4618). 0.5 is not part of the confidence interval, so this represents evidence that​ parents' attitudes toward the quality of education have changed.

Step-by-step explanation:

We have to see if 50% = 0.5 is part of the confidence interval.

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:

n = 1095, \pi = \frac{478}{1095} = 0.4365

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}} = 0.4365 - 1.96\sqrt{\frac{0.4365*0.5635}{1095}} = 0.4118

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4365 + 1.96\sqrt{\frac{0.4365*0.5635}{1095}} = 0.4612

The 95% confidence interval for the proportion of parents that are satisfied with their children's education is (0.4118, 0.4618). 0.5 is not part of the confidence interval, so this represents evidence that​ parents' attitudes toward the quality of education have changed.

5 0
3 years ago
Jose earned 29.75 in 3.5 hours how much did he earn in one hour
baherus [9]

Answer:

$8.50

Step-by-step explanation:

$29.75 / 3.5 hours = $8.50 per hour

6 0
3 years ago
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Do these numbers 19.657 &lt; 19.67​
nexus9112 [7]
I dont understand your question.......
5 0
3 years ago
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