The real number 8.09 belongs to which set of numbers? ? a-natural numbers b-integers c-irrational numbers d-rational numbers

Answer is: D - rational numbers

8.09 can be rewritten as 8 9/100, which in turn can be rewritten as 809/100. This is the ratio of two integers. So, 8.09 is rational.

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 *_*