Suppose you have three concentric circles and are looking at the arc lengths of a 20° angle of each. If the radii of the circles have a ratio of 2:3:9, what is the ratio of the arc lengths? The ratio of the arc lengths will be 2:__:__
(use ascending order. Type integers or simplified fractions.) ​

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?