Describe how to determine if two lines are parallel, perpendicular, or neither. Give an example of a parallel line, a perpendicular line, and a line which is neither parallel nor perpendicular to y=25x+7.

Find the value of the cosine for angle a

Ammonia molecules have three hydrogen atoms and one nitrogen atom. how many of each atom arein five molecules of ammonia

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.