Acarpenter contracts to do a job. the costs for the job are $2000 for materials, $500 for labor, and $150 for equipment rental. what would be the total cost of materials were increased by 15%

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0

Find the measure of angle a in the following triangle