1. given the curve that is described by the equation r = 3 cos θ, find the angle that the tangent line makes with the radius vector when θ = 120° a. 45° b. 30° c. 90° d. 60°

The equation respenting the left table is

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?