(co 1) what is the standard deviation and its meaning given this population of customer ages? 45, 76, 30, 22, 51, 40, 63, 66, 4116.5 which means that many of the ages will be around this value17.5 which means that many of the ages will be around the square of this value16.5 which means that many of the ages will be within this value of the average age17.5 which means that many of the ages will be within this value of the average age

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air