In the figure, A and Bare two points on the horizontal ground. AB is 6.4m and CB is 6.9m. ABC is a right angle
A sightseeing hot air balloon C is 8.9 m vertically above B. The distance between A and B is 6.4 m. Find the angle of depression of A from C.
(Give your answer correct to 3 significant figures.)

5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.t5.5.5.5.5.5.5.5.5.5.5..5.5..5.5.5.5.5..5...5.5..5..5.5.5.5.5.5.5.5..55.5.5.5.5.5.5..5.5..5.5.5.5.5.5..5.5.5.5.5..5.5.5.5..t55..5

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.