the input nums is supposed to be an array of unique integers ranging from 1 ro nums. length (inclusive). However, there is a mistake: one of the numbers in the array is replicated, which means another number is missing. find and return he sum of the duplicate number and the missing number

What is estimated time of arrival (eta)? a device that measures the acceleration (the rate of change of velocity) of an item and is used to track truck speeds or taxi cab speeds a gps technology adventure game that posts the longitude and latitude location for an item on the internet for users to find a north/south measurement of position the time of day of an expected arrival at a certain destination and is typically used for navigation applications

Whats three fourths of 15(this is supposed to be in math but i clicked too fast)

Need ! will choose brainliest! discuss the role of abstraction in the history of computer software.