The area of a trapezoid is given by the formula a = 1/2(b 1 + b 2)h, where base b 1 is parallel to base b 2 and h is the height. solve the formula for b 2. show your work.

Simplify the expression 10/11(22z) + (a+5) -1

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar

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?