This is your Answer...
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The domain of the first one is -3,-1,0,2,7. The range is -7,-3,-1,3,7.
For the second, the domain is -5,-4,0,1,2. The range is -4,2,2,3,4.
Domain is just the x-values
Range is just the y-values
3x-4=-19
you add -4 to both sides and get 3x=15 then divide 3 by both sides and get x=5 (15 divided by 3 is 5)
Answer:
(A) looks right
Step-by-step explanation:
I am sorry if i am wrong
List data in order: 20, 25, 30, 30, 31, 40, 41, 49
the IQR is the difference between Q3 and Q1
First find the median: Average the middle two numbers = 30.5
Now the median of the first half of the data = Q1 = (25 + 30)/2 = 27.5
the median of the second half of the data = Q3 = (40 + 41)/2 = 40.5
IQR = 40.5 - 27.5 = 13