What is the length of the hypotenuse of the triangle below?

D

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

The square oh the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

h² = (9 )² + (9 )² = 162 + 162 = 324 ( take the square root of both sides )

h = = 18 → D

x = -2

y = 848

step-by-step explanation:

plug in the numbers

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