Question

7|-x|-4|3y-3,4| при x= -2 и y=0,8

Answer 1

Ответ:

Пошаговое объяснение:

7*|-(-2)|-4*|3*0.8-3,4|

7*|2|-4*|2,4-3,4|

7*2-4*|-1|

14-4*1=10

Answer 2

It seems like you have an expression with variables x and y, and you want to evaluate it when x is -2 and y is 0.8. The expression you provided is a bit unclear because of the formatting. However, I will try to interpret it as best I can.

Let's break down the expression step by step:

1. When x = -2: |-x| = |-(-2)| = 2 So, the expression becomes: 7 * 2 - 4 * |3y - 3|

2. When y = 0.8: |3y - 3| = |3 * 0.8 - 3| = |2.4 - 3| = |-0.6| = 0.6 Substituting this back into the expression: 7 * 2 - 4 * 0.6 = 14 - 2.4 = 11.6

So, when x = -2 and y = 0.8, the value of the expression is approximately 11.6.