Weight of an astronaut. the weight w of an object varies inversely as the square of the distance d from the center of the earth at sea level which is 3978 miles from the center of the earth an astronaut weighs 137 pounds find her way when she is 395 miles above the surface of the earth and the spacecraft is not in motion

Is it greater than or less than7*3_9*2

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

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