The area of a circle is 1.384.74 m2. Which is the circumference of the circle?

A: 21 m

B: 65.94 m

C: 131.88 m

D: 263.76 m

E: 441 m

Afootball is throw by a quarterback to a receiver

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

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?