Angle b = 90 degrees, side bc = 20, angle y = 90 degrees, and side yz = 20. what additional information would you need to prove that δabc≅δxyz by hl?
a) angle a is congruent to angle x
b) angle b is congruent to angle y
c) side ab is congruent to side xy
d) side ac is congruent to side xz

Bis the correct answer

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 *_*