If you flip a fair coin five times what is the probability that you will get exactly 3 tails

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 are the coordinates of the image of p for a dilation with center (0, 0) and scale factor 2

What are two numbers that have a sum of 15?