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Advocard [28]
3 years ago
9

How would the following triangle be classified?

Mathematics
1 answer:
Anna [14]3 years ago
8 0

Answer:

hope this helpful

Step-by-step explanation:

isosceles right

because A light ray incident at 90° at the first face emerges at the same angle. The diagram shows five isosceles right-angled prisms. A light ray incident at 90° at the first face emerges at the same angle with the normal from the last face.

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D • (-4) = 32 solve for d
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Solve the problem. A variable x has the possible observations shown below. Possible observations of x: -3 -1 0 1 1 2 4 4 5 Find
svp [43]

Answer:

The z-score corresponding to an observed value of x of 2 is 0.215.

Step-by-step explanation:

We are given that a variable x has the possible observations shown below;

Possible observations of X: -3, -1, 0, 1, 1, 2, 4, 4, 5.

Firstly, we will find the mean and the standard deviation of X, i.e;

Mean of X, (\mu) = \frac{\sum X}{n}

                       =  \frac{(-3)+ (-1)+ 0+ 1+ 1+ 2+ 4+ 4+ 5}{9}  

                       =  \frac{13}{9}  = 1.44

Standard deviation of X, (\sigma) =  \sqrt{\frac{\sum (X-\bar X)^{2} }{n-1} }

                            =  \sqrt{\frac{(-3-1.44)^{2}+(-1-1.44)^{2}+......+(4-1.44)^{2}+(5-1.44)^{2} }{9-1} }

                            =  2.603

Now, the z-score corresponding to an observed value of x of 2 is given by;

                  z-score =  \frac{X-\mu}{\sigma}

                               =  \frac{2-1.44}{2.603}  = <u>0.215.</u>        

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