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Anton [14]
2 years ago
5

Question: which angles are vertical angles?

Mathematics
2 answers:
liraira [26]2 years ago
7 0

6 and 7 are vertical.

5 and 8 are vertical.

Gwar [14]2 years ago
5 0

Answer:

<AOD, <BOC And <DOC ,<AOB

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On a piece of paper, use a protractor and a ruler to construct △ABC with AB=6 cm , m∠A=80° , and m∠B=50° .
Svetllana [295]
The correct answer for this question is this one:

<span>On a piece of paper, use a protractor and a ruler to construct △ABC with AB=6 cm , m∠A=80° , and m∠B=50° .

What is AC ?

3 cm
<u>6 cm</u>
9 cm
12 cm</span>

If you try to draw the triangle, it forms an isosceles triangle.
side AB has a length of 6cm. Side AB = Side AC. So the length of Side AC is also 6 cm.

Hope this helps answer your question and have a nice day ahead.
6 0
3 years ago
Read 2 more answers
A professor at a university wants to estimate the average number of hours of sleep the students get during exam week. The profes
balandron [24]

Answer:

The sample size is n = 2

Step-by-step explanation:

From the question we are told that

   The margin of error is  E =4.266

    The standard deviation is  \sigma = 2.539

From the question we are told the confidence level is  99% , hence the level of significance is    

      \alpha = (100 - 99 ) \%

=>   \alpha = 0.01

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  2.58

Generally the sample size is mathematically represented as  

   n = [\frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ] ^2

=>  n = [\frac{2.58  *  2.539  }{4.266} ] ^2

=>  n = 2

6 0
3 years ago
I dont understand this please help​
Alex787 [66]

Answer:

Its asking you which one is greater or less than. Hope this help?

Step-by-step explanation:

6 0
3 years ago
We have 10 gallons of gas in the car. we use 1 5/8 gallons each hour. How many hours of gas do we have?
Andre45 [30]
So you have 10 gallons of gas
You use 1.625 or 1.63 an hour

You can either do 10/1.625 = 6 hours and 15 mins
You can either do 10/1.63 = 6 hours and 13 mins



5 0
3 years ago
Write a function for the line with a slope -1/4 that passes through the point (4,5)
Lilit [14]

Answer: The point slope solution is y+4 = -(1/2)(x-4) which is y + 4 = -(.5)x + 2 or y = -(.5)x -2.

Step-by-step explanation:

5 0
3 years ago
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