If
then complex number
is a root of cubic polynomial.
If polynomial has real coefficients, then conjugated
is also a root of polynomial.
Then the polynomial will be of a form

Since
then

Therefore,

Answer: that's false
Step-by-step explanation:
degrees of freedom=(r-1)(c-1)
If I'm wrong I'm sorry
Answer:
There will be 120 gallons in the pool after 5 minutes.
20*5=100
100 and 120 are reasonably close
Step-by-step explanation: