Which describes the combined variation in the formula n =

a. h varles jointly with v and pie , and inversely with the square of r.

b. h varles directly with v and inversely with pie and the square of r.

c. h varies directly with v and inversely with the square of r.

h varies jointly with v and r^2.

If you make you answer for clear i can answer it : )

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 *_*

The correct answer is d, hope this