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pag iniciais MATEM.pmd - Axpfep1.if.usp.br

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Capítulo IX – Explorando situações numéricas<<strong>br</strong> />

Conferindo seu Conhecimento<<strong>br</strong> />

I. a) 6 x 10 12 b) 10 14 .<<strong>br</strong> />

II. 130.200km.<<strong>br</strong> />

III. Resposta (b).<<strong>br</strong> />

I.<<strong>br</strong> />

II.<<strong>br</strong> />

Hidrogênio: 8,375 x 10-5 (menos denso).<<strong>br</strong> />

Hélio: 1,664 x 10-4 .<<strong>br</strong> />

Nitrogênio: 1,165 x 10-3 .<<strong>br</strong> />

Oxigênio: 1,332 x 10-3 .<<strong>br</strong> />

Cloro: 2,95 x 10-3 .<<strong>br</strong> />

a) Mesma ordem de grandeza<<strong>br</strong> />

b) Uma ordem de grandeza.<<strong>br</strong> />

c) Uma ordem de grandeza<<strong>br</strong> />

d) Uma ordem de grandeza.<<strong>br</strong> />

e) Três ordens de grandeza.<<strong>br</strong> />

I. 1/8; 3/8.<<strong>br</strong> />

II. 60%; 160%.<<strong>br</strong> />

I.<<strong>br</strong> />

a) 2,00 .<<strong>br</strong> />

b) 22,00.<<strong>br</strong> />

c) 26,40.<<strong>br</strong> />

d) 6,40; 32%.<<strong>br</strong> />

II. 19,80; 32%<<strong>br</strong> />

III.<<strong>br</strong> />

a) 16,00<<strong>br</strong> />

b) 4,00<<strong>br</strong> />

c) 3,20<<strong>br</strong> />

d) 16,00; 12,80<<strong>br</strong> />

e) Baratinho<<strong>br</strong> />

f) Sim<<strong>br</strong> />

IV. a) 20.808,00 b)21.224,16<<strong>br</strong> />

V. Resposta (c).<<strong>br</strong> />

VI. Aproximadamente 7 anos.<<strong>br</strong> />

VII. Resposta (c).<<strong>br</strong> />

VIII. Resposta (b).<<strong>br</strong> />

IX. Resposta (c).<<strong>br</strong> />

I. Resposta (c).<<strong>br</strong> />

II. Resposta (c).<<strong>br</strong> />

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