Two cars are approaching an intersection. One is 1 mile south of the intersection and is moving at a constant speed of 40 miles per hour. At the same time, the other car is 2 miles east of the intersectionand is moving at a constant speed of 10 miles per hour.
(a) Express the distance d between the cars as a function of timet. (Hint: At t=0, the cars are 1 mile south and 2 miles east of the intersection, respectively.)
d =

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

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?

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs