Вычеслите значение выражения : 1) 0,4y+1 при y=-0,5;8;-10 2)2/7c-0,2b при c=-28,b=15. Created by bryushkovadash. matematika-ru

7c-0,2b при c=-28,b=15...

bryushkovadash @bryushkovadash

July 2022 1 6 Report

Вычеслите значение выражения :
1) 0,4y+1 при y=-0,5;8;-10
2)2/7c-0,2b при c=-28,b=15

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кляча

Verified answer

0,4у + 1 = 0,4*(- 0,5) + 1 = - 0,2 + 1 = 0,8
0,4у + 1 = 0,4*8 + 1 = 3,2 + 1 = 4,2
0,4у + 1 = 0,4*(-10) = - 4
--------------------------------------
2/7с - 0,2b = 2/7 * (-28) - 0,2 * 15 = - 8 - 3 = - 11

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