Is this table proportional?

No, the table is not proportional.

Proportional means that it has a consistent change in ratio. In this table, 4:5 is the ratio. So, for the table to be proportional, the next numbers would be 8 (mins) and 10 (ft), 12 (mins) and 15 (ft), and so on.

Thus proving that the table given is not proportional.

I hope this helps!

1. perpendicular

2. parallel

3. perpendicular

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.