A swimming pool is shaped like a cylinder with a radius of 15 feet and a height of 6 feet

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?

Find the inverse of the given function. f(x)= -1/2sqr x+3, x greater than or equal to -3