Astudent takes a 21 question, multiple choice exam with 4 choices for each question and guesses on each question. find the probability of guessing at least 10 out of 21 correctly.

What is an example of a facial supply?mask brushWhat type of equipment is used to analyze the skin and to perform detail work such as tweezing?magnifying lampWhat are the three components of the three-part procedure?pre-service, actual service, and post-serviceWhat should you do NEXT after checking the water level on the vaporizer when preparing the facial room?replace any disposable implements you may needHow long does it typically take to clean up after a service?10-15 minutesWhat should you do when disinfecting the equipment and facial room?remove all used items from the inside of the towel warmerWhat type of water should be used in the steamer?distilledWhat is an example of a single-use item?nitrile glovesWhen should you ask the client if you can schedule the next appointment?after the client has paid for the service and take-home productsWhat should you do when cleaning and preparing the treatment room at the end of the day?refill the steamerWhat is the FIRST thing you should do when setting up your supplies?wash you hands with soap and waterWhat should you use to remove implements from the container of disinfectant solution?tongsWhat should be located in each treatment room for disinfecting tools and equipment?wet disinfectantWhat should you do with soiled gloves?seal them in a plastic bag and place it in a covered waste containerWhat is the FIRST step in performing services?planning and preparing the treatment room

Answer

1 number

explanation

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

 

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.