△XYZ is given with X(2, 0), Y(0, −2), and Z(−1, 1). Which of the following can be used to prove that △XYZ is isosceles? −(−1))2+(−2−1)2−−−−−−−−−−−−−−−−−−−√ and (−1−0)2+(1−(−2))2−−−−−−−−−−−−−−−−−− −√

(2−(−1))2+(0−1)2−−−−−−−−−−−−−−−−−−√ and (0−(−1))2+(−2−1)2−−−−−−−−−−−−−−−−−− −√

(2−0)2+(0−(−2))2−−−−−−−−−−−−−−−−−−√ and (2−(−1))2+(0−1)2−−−−−−−−−−−−−−−−−−√

(0−(−1))2+(−2−1)2−−−−−−−−−−−−−−−−−− −√ and (2−0)2+(0−(−2))2−−−−−−−−−−−−−−−−−−√

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

good luck on your studies! : )

david edward.