If the terminal point determined by t is (-5,-4), then \sin (t) =
;
\cos (t) =
;
\tan (t) =
.

The trigonometric ratios associated with (-5, -4) are , and .

Step-by-step explanation:

Let . From Trigonometry, we remember the following definitions for the trigonometric ratios, dimensionless:

(1)

(2)

(3)

If we know that and , then the trigonometric ratios are, respectively:

The trigonometric ratios associated with (-5, -4) are , and .

5

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.