The probability that a battery will last 10 hr or more is 0.9, and the probability that it will last 15 hr or more is 0.11. given that a battery has lasted 10 hr, find the probability that it will last 15 hr or more.

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2