Given the function f(x)=1/x-1 -5 choose the correct transformation​

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.