Answer:
C. 3.2
Step-by-step explanation:
Heights of dogs: 10, 22, 15, 12, 16
✔️Find the mean of the data set = 
✔️Find |data value - mean|:
|10 - 15| = 5
|22 - 15| = 7
|15 - 15| = 0
|12 - 15| = 3
|16 - 15| = 1
✔️Find the sum of |data value - mean| and divide by 10:

✅M.A.D = 3.2
Answer:
its 6x ,6 and 3(y+2)
Step-by-step explanation:
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Answer:
x = -2 ±sqrt(7)
Step-by-step explanation:
3x^2 +12 x = 9
Divide each side by 3
3x^2 /3 +12x/3 = 9/3
x^2 +4x = 3
Take the coefficient of x
4
Divide by 2
4/2 =2
Square it
2^2 =4
Add it to each side
x^2 +4x+4 = 3+4
x^2 +4x+4 = 7
(x+2)^2 = 7
Take the square root of each side
x+2 = ±sqrt(7)
Subtract 2 from each side
x+2-2 = -2 ±sqrt(7)
x = -2 ±sqrt(7)
<h3>
Answer: Choice C</h3>
The -2/5 means we go to the left 2/5 of a full unit. So we take 2 small little steps (going over 2 little tickmarks), then we move 4 small steps to the right due to the +4/5 portion. Ultimately, we end up at 2/5 as the answer
So -2/5 + 4/5 = 2/5
This can be thought of as -2+4 = 2, then you just stick 5 in the denominator for each term.