I dont know man...im tryna answer questions so i can ask mine :(
1) Tanθ= opposite/adjacent
θ=Tan-1(9/7)
θ=52.125 = 52 degrees
2) Cosθ= adjacent/hypothesis
θ=Cos-1(5/12)
θ=65.376 = 65 degrees
Answer:
The average rate of change is 
Step-by-step explanation:
Given function that shows the population of a culture of cells,

Where, t represents the number of weeks.
Thus, the average rate of change in the population over the interval [0,24],

From equation (1),





Pairs of corresponding angles are congruent.