George from the manchester office, has a road atlas which has a scale of 1cm: 10km. how far has he to travel to the sheffield office if distance on the map is 4.5cm?
= [ ] km

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Pls never taught i’m really confused and i rlly need

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?