HURRY PLEASE!

What is the domain of the function y = 2 StartRoot x minus 6 EndRoot?
Negative infinity less-than x less-than infinity
0 less-than-or-equal-to x less-than infinity
3 less-than-or-equal-to x less-than infinity
6 less-than-or-equal-to x less-than infinity

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

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?