Awater sprinkler sends water out in a circular pattern. determine how large an area is watered. the radius of watering is 18ft. use the approximate value 3.14

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days