four students are working in a group and are asked to find the length of bc. which two students set up the problem correctly?

moe: x =
(5 - 1)2 + (1 - 4)2

jimmy: x2 = 32 + 42
alice: x = 3 + 4
jane: x =
(5 - 1)2 - (1 - 4)2
a) moe and alice
b) moe and jimmy
c) jane and jimmy
d) alice and jane

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0