I would say x= 1/73 thats what i got
Answer:
3
Step-by-step explanation:
The expression is
. To find the value, substitute the values x = 3 and y =-2 then follow order of operations.

Answer:
the first one is 3.4
Step-by-step explanation:
how this helps
Answer:
70.56
Step-by-step explanation:
The variance is the standard deviation squared.
σ² = (8.4)² = 70.56