Sin(a)=2/5 use trig identity sin^2(a)+cos^2(a)=1 and tan(a)= sin(a)/cos(a) to find tan(a)

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

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