The equation cos -1 (3.4/10)=x can be used to determine the measure of angle BAC what is the degree measure of angle BAC round to the nearest whole degree
My answer will be 70° is that correct

Pranza plotted point a in the coordinate plane below.

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =