A. find the slope of the roof of a home that rises 8 feet for every horizontal change of 24 feet.

write your answer as a fraction in simplest form

slope:

b. the cost of nails varies directly with the number of pounds bought. if 4 pounds of nails cost $11.60, what is the cost of 3.5 pounds?

$?

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?

Which function has an inverse that is also a function? a.{(-4,3), (-2, 7), (-1,0), (4, -3), (11, -7)} b.{(-4, 6), (-2, 2), (-1, 6), (4,2), (11, 2)} c.{(-4,5), (-2, 9), (-1,8), (4, 8), (11,4)} d.{(-4,4), (-2, -1), (-1,0), (4, 1), (11, 1)}

Which equation can be used to determine the reference angle, r, if 0=7 pi/12?