Type the correct answer in each box.
There are three letter tiles—A, B, and C—in a bag; and there are three number tiles—1, 2, and 3—in another bag. Alexis picks a letter tile, and then she picks a number tile. Complete the table representing the sample space for this situation.
Letter Tile
A B C
Number Tile
1

A-1 B-1 C-1
2

A-2
C-2
3

A-3 B-3

The sample size of the event is
.

n

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.