morgeron6071
26.12.2020 •
Mathematics
Multiply. (2.1 X 10/2) X (3.5 X 10/5)
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Ответ:
we first solve each bracket
we can write 2.1 as 21/10 and 3.5 as 35/10
(21/10x10/2)x(35/10x10/5)
the 10's simplify
21/2x35/5=21/2x7=147/2=73.5
Ответ:
∠I ≅ ∠K since ∠H ≅ ∠J
:)