A vertical angles
b complementary angles
c supplementary angles
d none of the above

d none of the above

Step-by-step explanation:

a vertical angles   opposite angles made by intersecting lines  false

b complementary angles   add to 90 degrees  false

c supplementary angles   add to 180 degrees false

d none of the above

why can't you?

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11