Resposta:
[tex]a)2800 \\ b)530 \\ c)2.4 \times 10 {}^{6} \\ d)8.4 \times 10 {}^{3} [/tex]
Explicação passo-a-passo:
[tex] \blue{a)1.5 \times 10 {}^{3} + 1.3 \times 10 {}^{3} } \\ 1.5 \times 10 {}^{3} + 1.3 \times 10 {}^{3} \\(1.5 + 1.3) \\ 2.8\\(1.5 + 1.3) \times 10 {}^{3} \\ 2.8 \times 10 {}^{3} \\ 1.5 \times 10 {}^{3} + 1.3 \times 10 {}^{3}\\ 2.8 \times 10 {}^{3} \\10 {}^{3}\\ 10 \times 10 \times 10\\ 1000\\ 2.8 \times 10 {}^{3} \\ 2.8 \times 1000\\2800 \\ resposta \\ 2800[/tex]
[tex] \blue{b)7.7 \times 10 {}^{2} - 2.4 \times 10 {}^{2} } \\7.7 \times 10 {}^{2} - 2.4 \times 10 {}^{2} \\ (7.7 - 2.4) \times 10 {}^{2} \\ 7.7 - 2.4 \\ 5.3 \\ (7.7 - 2.4) \times 10{}^{2} \\ 5.3 \times 10 {}^{2} \\ 7.7 \times 10 {}^{2} - 2.4 \times 10 {}^{2} \\ 5.3 \times 10 {}^{2} \\10 {}^{2} \\10 \times 10 \\100 \\ 5.3 \times 10 {}^{2} \\5.3 \times 100 \\530 \\resposta \\ 530[/tex]
[tex] \blue{c)4 \times 10 {}^{2} \times 6 \times 10 {}^{3} } \\ 4 \times 10 {}^{2} \times 6 \times 10 {}^{3} \\ 4 \times 6\\ 24 \\ 4 \times 10 {}^{2} \times 6 \times 10 {}^{3} \\24 \times 10 {}^{2} \times 10 {}^{3} \\ 4 \times 10 {}^{2} \times 6 \times 10 {}^{3}\\ 24 \times 10 {}^{2 + 3} \\ 24 \times 10 {}^{5} \\ 2.4 \times 10 {}^{1} \times 10 {}^{5} \\ 2.4 \times 10 {}^{1 + 5} \\ 2.4 \times 10 {}^{6} \\ 24 \times 10 {}^{5} \\ 2.4 \times 10 {}^{6} \\resposta \\ 2.4 \times 10 {}^{6} [/tex]
[tex] \blue{d)1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1}} \\1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1} \\1.4 \times 6 \\ 8.4 \\ 1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1} \\8.4 \times 10 {}^{2} \times 10 {}^{1} \\ 1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1} \\8.4 \times 10 {}^{2 + 1} \\ 8.4 \times 10 {}^{3} \\ resposta \\ 8.4 \times 10 {}^{3} [/tex]
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Resposta:
[tex]a)2800 \\ b)530 \\ c)2.4 \times 10 {}^{6} \\ d)8.4 \times 10 {}^{3} [/tex]
Explicação passo-a-passo:
[tex] \blue{a)1.5 \times 10 {}^{3} + 1.3 \times 10 {}^{3} } \\ 1.5 \times 10 {}^{3} + 1.3 \times 10 {}^{3} \\(1.5 + 1.3) \\ 2.8\\(1.5 + 1.3) \times 10 {}^{3} \\ 2.8 \times 10 {}^{3} \\ 1.5 \times 10 {}^{3} + 1.3 \times 10 {}^{3}\\ 2.8 \times 10 {}^{3} \\10 {}^{3}\\ 10 \times 10 \times 10\\ 1000\\ 2.8 \times 10 {}^{3} \\ 2.8 \times 1000\\2800 \\ resposta \\ 2800[/tex]
[tex] \blue{b)7.7 \times 10 {}^{2} - 2.4 \times 10 {}^{2} } \\7.7 \times 10 {}^{2} - 2.4 \times 10 {}^{2} \\ (7.7 - 2.4) \times 10 {}^{2} \\ 7.7 - 2.4 \\ 5.3 \\ (7.7 - 2.4) \times 10{}^{2} \\ 5.3 \times 10 {}^{2} \\ 7.7 \times 10 {}^{2} - 2.4 \times 10 {}^{2} \\ 5.3 \times 10 {}^{2} \\10 {}^{2} \\10 \times 10 \\100 \\ 5.3 \times 10 {}^{2} \\5.3 \times 100 \\530 \\resposta \\ 530[/tex]
[tex] \blue{c)4 \times 10 {}^{2} \times 6 \times 10 {}^{3} } \\ 4 \times 10 {}^{2} \times 6 \times 10 {}^{3} \\ 4 \times 6\\ 24 \\ 4 \times 10 {}^{2} \times 6 \times 10 {}^{3} \\24 \times 10 {}^{2} \times 10 {}^{3} \\ 4 \times 10 {}^{2} \times 6 \times 10 {}^{3}\\ 24 \times 10 {}^{2 + 3} \\ 24 \times 10 {}^{5} \\ 2.4 \times 10 {}^{1} \times 10 {}^{5} \\ 2.4 \times 10 {}^{1 + 5} \\ 2.4 \times 10 {}^{6} \\ 24 \times 10 {}^{5} \\ 2.4 \times 10 {}^{6} \\resposta \\ 2.4 \times 10 {}^{6} [/tex]
[tex] \blue{d)1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1}} \\1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1} \\1.4 \times 6 \\ 8.4 \\ 1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1} \\8.4 \times 10 {}^{2} \times 10 {}^{1} \\ 1.4 \times 10 {}^{2} \times 6 \times 10 {}^{1} \\8.4 \times 10 {}^{2 + 1} \\ 8.4 \times 10 {}^{3} \\ resposta \\ 8.4 \times 10 {}^{3} [/tex]