Find the lateral area of a cylindrical smokestack that is 20 feet high and has a diameter of 4 feet

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.