How to figure out the distance between two points using Pythagoras theorem

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?