There is no linear model because the temperature is independent of the level of humidity. You have have the same temperature at different humidity levels, or you could have the same temperature at different humidity levels.
If you can't multiply the number by any numbers besides 1 and and itself then it's composite
Answer:
y=25.5°
Step-by-step explanation:
because there's an isosceles triangle, 180-51 = 129
so 129/2 = 64.5, which is X
there is also a right angle so 90-64.5 = 25.5, which is y