PART A : A,B,C,D Because if the spinner was spinning on time it would have either landed on any of the given parts a,b,c,d once PART B: A and B They are equally likely to occur because both of them have a portion of 90 degrees. Hopefully my answer helped :)
Given that the roots of the equation x^2-6x+c=0 are 3+8i and 3-8i, the value of c can be obtained as follows; taking x=3+8i and substituting it in our equation we get: (3+8i)^2-6(3+8i)+c=0 -55+48i-18-48i+c=0 collecting the like terms we get: -55-18+48i-48i+c=0 -73+c=0 c=73 the answer is c=73
