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3 years ago

Pls help i’ll give brainlist

Mathematics

1 answer:

LiRa [457]3 years ago

7 0

Answer:

50 degrees

Step-by-step explanation:

A triangle's angles added up together is 180 degrees. We already know that the right angle is 90 degrees, and the other angle is 40 degrees. To find the missing angle, we need to add 90+40 to get 130 degrees, and subtract the sum from 180 degrees to get our missing angle of 50 degrees.

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Help me make 5 quests for 30 points please !!

Delvig [45]

The correct answers are 1. A, 2. C, 3. D, 4. C, 5. A

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3 years ago

In a sample of 234 individuals over the age of 25, chosen at random from the state of Oregon, 48 did not have a high school dipl

Anna71 [15]

Answer:

The upper bound of a 95% confidence interval for the proportion of individuals over the age of 25 in Oregon who do not have a high school diploma is of 0.2568.

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

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a p-value of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

In a sample of 234 individuals over the age of 25, chosen at random from the state of Oregon, 48 did not have a high school diploma.

This means that $n = 234, \pi = \frac{48}{234} = 0.2051$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2051 + 1.96\sqrt{\frac{0.2051*0.7949}{234}} = 0.2568$

The upper bound of a 95% confidence interval for the proportion of individuals over the age of 25 in Oregon who do not have a high school diploma is of 0.2568.

6 0

3 years ago

1+1/6 in simplest form

Reptile [31]

Answer:

1 1/6

Step-by-step explanation:

1 is nothing but 6/6

So then you would have 6/6+1/6

then you would do 6+1=7

And keep denominator same

So you have 7/6

Which is the same 1 1/6

Because 6 goes one time into 7/6

But you still have 1/6 left

3 0

3 years ago

In a school there are 60 teachers are and 1200 students. 30% of the students are billingual 15% of the teachers are billingual H

julsineya [31]

Answer:

369

Explanation:

Calculate each of the groups mentioned. You will derive that 360 students and bilingual and 9 of the teachers are bilingual. Add them together and you got your answer!

- Hope this helped.

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