Estimate the side length of a square that has a 9cm long diagonal

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re

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?