the local newspaper has letters to the editor feom 40 people. if this number represents 2% of all of the newspapers readers, how many readers does the newspaper have?

Can you simplify 4/7? 24 points will be awarded!

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

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?