Lara is calculating the standard deviation of a data set that has 8 values. she determines that the sum of the squared deviations is 184. what is the standard deviation of the data set? round the answer to the nearest tenth. enter your answer in the box.

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

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20