70 mi
a
42 mi

what is the length of the missing leg?
please help

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

What is the simplified form of square root of 400 to the 100th power ?

Biggest exam of the which of the following are polynomial functions?