Answer:
2,520
Explanation:
The word ALGEBRA has 7 letters with the letter A repeated twice.
Hence we permute all 7 letters with A repeated twice
₇P₇ / 2! = 7!/ [ (2!) ( 7-7)!]
= 2,520
People adapt to great plain regions by locating a near by river because of food and shelter around a substantial stable ecosystems. Which allows high survivability ratings.
Ang emperyo ng Tsina ay sinakop ng halos 120,000 Manchus. ... Noong 1644, sinamantala ng Manchus ang paghihimagsik at kaguluhan sa emperyo ng Tsina at lumipat sa timog. Bumubuo ng isang alyansa sa isang loyalistang heneral ng Ming, pumasok sila sa Beijing noong Hunyo at halos agad na kumuha ng kapangyarihan para sa kanilang sarili.
Ang Manchu Conquest ng Tsina ay na-spark noong Abril 1618 nang magpalabas ng proklamasyon ang pinuno ng tribong Jurchen na si Nurhaci mula sa rehiyon ng Manchurian na naglilista ng pitong mga hinaing laban sa naghaharing dinastiyang Ming.
The principles of grouping (or Gestalt laws of grouping) are a set of principles in psychology, first proposed by Gestalt psychologists to account for the observation that humans naturally perceive objects as organized patterns and objects, a principle known as Prägnanz.
Explanation:
The Gestalt law of proximity states that "objects or shapes that are close to one another appear to form groups". Even if the shapes, sizes, and objects are radically different, they will appear as a group if they are close.
The principle of similarity states that perception lends itself to seeing stimuli that physically resemble each other as part of the same object. We seek differences and similarities in an image and link similar elements.
The principle of closure refers to the mind’s tendency to see complete figures or forms even if a picture is incomplete, partially hidden by other objects, or if part of the information needed to make a complete picture in our minds is missing.
THE PRINCIPLE OF GOOD CONTINUATION Then there is an intersection between two or more objects, people tend to perceive each object as a single uninterrupted object.
The law of common fate is used extensively in user-interface design, We group elements that move in the same direction..
The principle of good form refers .to the tendency to group together forms of similar shape, pattern, color, etc
