Is the trigonometric ratios applicable only for right triangle??​

Organisms that live in the alpine and taiga biomes have developed unique adaptations that aid in their survival. the douglas-fir is a conifer tree that grows in the taiga biome. it has an average height of about 70 feet, and its wood is an important source of lumber.

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55