I feel like it’s B but I’m not sure
Answer:
2.4
Step-by-step explanation:
We have to find the mean first

Now we have to find deviations.
Note that the deviations are calculated by subtracting the mean from the value. The distance is always positive so the deviations will be positive
Value Deviation
2 2-4.5 = |-2.5| = 2.5
4 4-4.5 = |-0.5| = 0.5
7 7-4.5 = 2.5
2 2-4.5 = |-2.5| = 2.5
3 3-4.5 = |-1.5| = 1.5
7 7-4.5 = 2.5
9 9-4.5 = 4.5
3 3-4.5 = |-1.5| = 1.5
1 1-4.5 = |-3.5| = 3.5
7 7-4.5 = 2.5
The last step is to find the mean of deviations.

The mean absolute deviation of given data set is 2.4 ..
Because irrational numbers are unpredictable. for example, you can write 0.25 in a fraction (1/4) because 1/4 is 1 divided by 4 which is 0.25. But you can never divide 2 numbers to get a decimal that never ends
Step-by-step explanation:
The numbers 1 to 9 are 9 digits
The numbers 10 to 99 are 90*2 = 180 digits.
You have written 189 digits and must write another 1000 - 189 = 811 digits.
Every number from 100 to 500 have 3 digits.
811/3 = 270 1/3
So you write 270 numbers: 100 to 369
And then you will write the first number from 370 (the 1000th digit). This digit is 3.
Answer:
x = 65°
Step-by-step explanation:
these are vertical angles, which are congruent
145 = 2x + 15
130 = 2x
65 = x