Invested his savings in two investment funds. The $ 20,000 that he invested in Fund A returned a 10 % profit. The amount that he invested in Fund B returned a 3 % profit. How much did he invest in Fund B, if both funds together returned a 8 % profit?

What is always true when two whole numbers are subtracted?

If value of cos330° is √3/2 then find tan165°.

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?