What is the discontinuity and zero of the function f(x) = the quantity of 2 x squared plus 5 x minus 12, all over x plus 4?

discontinuity at (-4, -11), zero at (three halves , 0)

discontinuity at (-4, -11), zero at (negative three halves , 0)

discontinuity at (4, 5), zero at ( three halves , 0)

discontinuity at (4, 5), zero at (negative three halves , 0)

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?