Which expression represents the volume, in cubic units, of the composite figure? π(103) + π(102)(28) π(203) + π(202)(28) 2π(103) + π(102)(28) 2π(203) + π(202)(28) will someone check my answer and tell me if its wrong and explain how to do it brainliest to the first one!

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

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Yvaries directly as x. y =90 when x=6. find y when x=13