X+y=180
they are adjacent angles
x=50
y=130
Using z-scores, it is found that the unusual values are those that are less than 124.
---------------------------
The z-score of a measure X in a data-set with mean
and standard deviation
is given by:

- The z-score measures how many standard deviations X is from the mean.
- Measures that are<u> more than 2 standard deviations from the mean</u> are unusual.
- Z < -2 means that the measure X is unusually low.
- Z > 2 means that the measure X is unusually high.
In this problem:
- Mean of 150, thus
. - Standard deviation of 13, thus
.




Unusual values are those that are less than 124.
A similar problem is given at brainly.com/question/15315313
Answer:
-3 comes from combining 1 and -4
Step-by-step explanation:
The -3 under the radical is the result of combining the terms
16 -4(16) = 16(1 -4) = 16(-3) = -3(16)
16 is factored out. It is done this way because 16 is a perfect square factor, so wants to maintain that identity while you figure out the rest of the radical.

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