COURSES ASSIGNMENTS Attemptl oli Perform the indicated operation. Be sure the answer is reduced. 9-s^2/3rs÷s^2+2s-15/5rs​

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212