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yulia23052003
@yulia23052003
August 2022
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спрости вираз і обчисли його значення
1) 1,8а+1,2а-2,7а, якщо а =1,15
2) 2,5x-1,3x+3,8x, якщо x =4,721
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ФАИНА1984
Verified answer
1) 1,8а+1,2а-2,7а=(1.8+1.2-2.7)*а=0.3а
если а =1,15 , то 0.3*1.15=0.345
2) 2,5x-1,3x+3,8x=(2.5-1.3+3.8)*х=5х
если x =4,721 , то 5*4.721=23.605
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Answers & Comments
Verified answer
1) 1,8а+1,2а-2,7а=(1.8+1.2-2.7)*а=0.3аесли а =1,15 , то 0.3*1.15=0.345
2) 2,5x-1,3x+3,8x=(2.5-1.3+3.8)*х=5х
если x =4,721 , то 5*4.721=23.605