Certain insecticide kills 60% of all insects in laboratory experiment a sample of seven insects is exposed to the insecticide in a particular experiment what is the probability that exactly 3 insects will die?

Letter a i would say

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 *_*