3. Convert the angle to decimal degrees and round to the nearest hundredth of a degree. 13° 15'36

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)