The expression 3c2 represents the number of ways of: a. choosing 2 items at a time from a set of 3. c. arranging, in order, 2 items from a set of 3. b. choosing 3 items at a time from a set of 2. d. arranging, in order, 3 items from a set of 2. select the best answer from the choices provided a b c d

g

step-by-step explanation:

35 is an outlier

step-by-step explanation:

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.