On a standardized exam, the scores are normally distributed with a mean of 69 and a
standard deviation of 20. Find the z-score of a person who scored 89 on the exam.

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*

Ithink the answer is b.