Youve started recording how long your cellphone battery lasts between charges. you find that the length of time between charges is, x, is normally distributed with a mean of 10 hours and a standard deviation of 1.5 hours. what is the probability that your cellphone battery will last between 8 and 12 hours between charges?

Anew equipment has been proposed by engineers to increase the productivity of a certain manual welding operation. the investment cost is $25,000, and the equipment will have a market value of $5,000 at the end of a study period of five years. increased productivity attributable to the equipment will amount to $10,000 per year after operating costs have been subtracted from the revenue generated by the additional production. if marr is 10%, is investing in this equipment feasible? use annual worth method.

15. chef a insists that roux is the traditional thickener for bisque. chef b insists that it's rice. which chef is correct? a. neither chef is correct. b. both chefs are correct. c. chef b is correct. d. chef a is correct.

Sally mitchell works as a manager at an environmental organization. she is currently working on a global warming project and decides which tasks related to creating awareness about the issue need to be done. in addition, she is also deciding which members of her team will work on engaging with the public and which will work on lobbying with the government. she is also assigning people as team members to ensure that tasks are undertaken on time. which of the following categories of functions is mitchell undertaking? envisioning organizing controlling planning