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makkiz [27]
2 years ago
5

I need help with this one Q13

Mathematics
2 answers:
scoray [572]2 years ago
8 0
4 option 2 5/6 x is the right one
horsena [70]2 years ago
6 0

Answer:

x= 2 5/6

Step-by-step explanation:

1/3= 2/6

2 1/2= 2 3/6

2/6+ 2 3/6= 2 5/6

Hope this helps! :)

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sharla has 87 silver coins in her collection and 82 copper coins in her collection. She rounded each type of coin to the nearest
valina [46]

Answer:

no it is not reasonable

3 0
4 years ago
As indicated below, write the equations of the line passing through the point (2, 2) and perpendicular to the line whose equatio
Aleks04 [339]

Answer:

Step-by-step explanation:

y = x

Slope of line = 1

Slope of perpendicular to line = -1

Point-slope equation for line of slope -1 through (2,2):

y-2 = -(x-2)

Slope-intercept equation:

y = -x + 4

Standard form:

x+y = 4

7 0
3 years ago
Of 375 randomly selected students, 30 said that they planned to work in a rural community. Find 95% confidence interval for the
Artemon [7]

Answer:

The 95% confidence interval for the true proportion of all medical students who plan to work in a rural community is (0.0525, 0.1075).

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:

n = 375, \pi = \frac{30}{375} = 0.08

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}} = 0.08 - 1.96\sqrt{\frac{0.08*0.92}{375}} = 0.0525

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.08 + 1.96\sqrt{\frac{0.08*0.92}{375}} = 0.1075

The 95% confidence interval for the true proportion of all medical students who plan to work in a rural community is (0.0525, 0.1075).

4 0
3 years ago
2b−6= −4 what is b​
gogolik [260]

2b - 6 = -4

2b = -4 + 6

2b = 2

b = 2/2

b = 1

8 0
3 years ago
Read 2 more answers
Which of the following statements shows the inverse property of addition?
Arte-miy333 [17]
The first answer a +(-a) =0
8 0
4 years ago
Read 2 more answers
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