Solve by completing the square.
x^2-6x-23=0

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)

Find the missing factor. write your answer inexponential form.9^2=9^4×