melanie12566
22.08.2019 •
Mathematics
Determine o valor das seguintes expressões.
a) (17º-17'-17") : 4
b) (18º: 8 + 23º: 4 - 8º) . 29
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Ответ:
17.288055...º / 4 = 4.322...º = 4º - 19' - 19.25" <== a resposta
b) (18º: 8 + 23º: 4 - 8º)
18º / 8 = 2.25º
23º / 4 = 5.75º
(2.25º + 5.75º - 8º) = 0 <== a resposta
Ответ: