Предмет: Математика, автор: ira9786ivanova0061

Помогите пж это ЯКласс я честно не понимаю, пожалуйста

Раскрой скобки и упрости выражение:
−7(3−b)+4(−3b−3)−7(−8+b).
Ответ: выражение без скобок (пиши без промежутков, не меняя порядка слагаемых; переменные пиши латинскими буквами)

результат после упрощения
(первым записывай число, в том числе и 0, если получается; коэффициент −1 или 1 при буквенном множителе — записывать)

Ответы

Автор ответа: foverlord510

Ответ:

23-12b

Пошаговое объяснение:

−7(3−b)+4(−3b−3)−7(−8+b)=

-21+7b-12b-12+56-7b=

23-12b

Автор ответа: ahrorovsaidaziz19

Ответ:

привет! сейчас решу...

-7(3-b)+4(-3b-3)-7(-8+b)

тоисть их надо сделать так чтобы привести к подобным совместить.

Следовательно значит будет:

-21+7b-12b-12+56-7b

в итоге мы просто решаем,

23-12b

Вот ответ)

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Theoretical approaches
Many scholars have discussed potential functions of music exclusively from a theoretical point of view. The most prominent of these approaches or theories are the ones that make explicit evolutionary claims. However, there are also other, non-evolutionary approaches such as experimental aesthetics or the uses-and-gratifications approach. Functions of music were derived deductively from these approaches and theories. In addition, in the literature, one commonly finds lists or collections of functions that music can have. Most of these lists are the result of literature searches; in other cases authors provide no clear explanation for how they came up with the functions they list. Given the aim of assembling a comprehensive list, all works are included in our summary.

Functions of music as they derive from specific approaches or theories
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Another line of theorizing refers to music as a means of social and emotional communication. For example, Panksepp and Bernatzky (2002, p. 139) argued that

in social creatures like ourselves, whose ancestors lived in arboreal environments where sound was one of the most effective ways to coordinate cohesive group activities, reinforce social bonds, resolve animosities, and to establish stable hierarchies of submission and dominance, there could have been a premium on being able to communicate shades of emotional meaning by the melodic character (prosody) of emitted sounds.

A similar idea is that music contributes to social cohesion and thereby increases the effectiveness of group action. Work and war songs, lullabies, and national anthems have bound together families, groups, or whole nations. Relatedly, music may provide a means to reduce social stress and temper aggression in others. The idea that music may function as a social cement has many proponents (see Huron, 2001; Mithen, 2006; Bicknell, 2007).

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