Determine all values of k for which the roots of the equation x^2-6x+k=0 are complex

Select the correct answer. what is the surface area of the victory podium shown here? include all surfaces of the podium, including the bottom. a. 61.5 square feet b. 61.75 square feet c. 65.25 square feet d. 69 square feet

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Which expression is the factorization of x^2+10+21