The reciprocal of a fraction is the same tying flipped so the reciprocal of -9/11 is 11/-9
Answer:
´The variance is 10000
Step-by-step explanation:
The variance is defined as the square of standard deviation, consequently it is as follows:
σ^2=
σ^2=10000
First replace y with 15.
1/5x-10=30
Then just solve from there.
x=200