A scientist measures the change in temperature of a chemical solution. At the start of the experiment, the solution is at a temperature of -14.96 ℃ . The temperature decreases 2.9℃ each hour for 3 hours. What is the temperature of the solution after 3 hours?

What is r i 4.5+10r=-6.5 with work pls

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

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?