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Kobotan [32]
3 years ago
13

Given the equation y = 3x - 2, do the following: a. On a separate sheet of paper, complete the table of ordered pairs. If 3(1)-

2 = 1 for x = 1, show your work in the box below for x = 2, 3, 4.
Mathematics
1 answer:
Zepler [3.9K]3 years ago
6 0
Y = 3x - 2 
I assume this is what they mean;
3(1)- 2 = 1 for  <span><span>x = 1

</span>Fill in the x's with the following numbers. so first... (x = 2)
</span>y = 3x - 2  
     3(2) - 2
multiply 3 and 2 and then minus 2
which equals 4 all together
y=4 
therefore; 
3(2) - 2 =  4

For x = 3
Fill in the x with 3 in the equation
3x - 2 = y
3(3) - 2 = y 
9 - 2 = y
equals 7
so...
3(3) - 2 = 7

Do the same rule with number 4 :) 
Let me know if it's different from what you're learning 

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total no of times spinners were spun = 84/(0.5*0.6) = 280

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5 1/6 divided by 2 5/12= 2 4/29 true or false
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From a large number of actuarial exam scores, a random sample of scores is selected, and it is found that of these are passing s
Mnenie [13.5K]

<u>Supposing 60 out of 100 scores are passing scores</u>, the 95% confidence interval for the proportion of all scores that are passing is (0.5, 0.7).

  • The lower limit is 0.5.
  • The upper limit is 0.7.

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of \alpha, we have the following confidence interval of proportions.

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

In which

z is the z-score that has a p-value of \frac{1+\alpha}{2}.

60 out of 100 scores are passing scores, hence n = 100, \pi = \frac{60}{100} = 0.6

95% confidence level

So \alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6 - 1.96\sqrt{\frac{0.6(0.4)}{100}} = 0.5

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6 + 1.96\sqrt{\frac{0.6(0.4)}{100}} = 0.7

The 95% confidence interval for the proportion of all scores that are passing is (0.5, 0.7).

  • The lower limit is 0.5.
  • The upper limit is 0.7.

A similar problem is given at brainly.com/question/16807970

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2 years ago
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