Answer:
Median is 12
Step-by-step explanation:
9, 10, 4, 12, 15, 17, 18, 10, 12, 13
Sort the data
4, 9, 10, 10, 12, 12, 13, 15, 17, 18
Median position: (n+1)/2
(10+1)/2 = 5.5th value
Median:
(12+12)/2
24/2
12
Putting the numbers from smallest to largest
4,9, 10, 10, 12 12, 13, 15, 17, 18,
The median is the middle number
There are 10 numbers
The middle number is between the 12's, so it is 12
x = 48°
The sum of the 3 angles in a triangle = 180°, thus
x = 180° - (90 + 42)° = 180° - 132° = 48°
536 because it is correct
16
Hope this helps sorry if I'm wrong
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