The function below models the voltage, in volts, of a certain alternating-current circuit after x seconds, where a and b are positive constants. f(x)=acos(bx) assume the expression inside the cosine function is measured in radians. what is the largest value of c such that when the voltage function's domain is restricted to the interval [0,c] , the function is invertible? use the on-screen keyboard to type the answer in the box below.

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet