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7
(
k
−
3
)
-
7
(
k
-
3
)
Solve
The answer is B. If you take the even root of a positive number, you'll get two solutions, a positive and a negative
Answer is A.
c=139
b=18.04
a=11.76
Data:
Average (A): ?
Arithmetic mean (A.M) = 5, -2, -11, 0, -3sum of n numbers = 5
Solving:

Answer:
<span>The average low temperature of these days is
-2.2</span>