Which pair of angles has congruent values for the sin x° and the cos y°?

70°; 160°
70°; 70°
70°; 120°
70°; 20°

70; 20

Step-by-step explanation:

By the definition of a triangle, all angles must sum to 180 degrees.

We already know that the right triangle automatically has an angle of 90 degrees, so the last two angle must be complemetary and will always total 90 degrees as well.

So, by the process of elimination we can gather that the angles must be 70 and 20.

To prove our answer is correct, we can add the angles together: 70 + 20 + 90 = 180. Yep, it works!

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

it is x equals 3   plese mark me really need it

step-by-step explanation: