Resposta:
Explicação passo-a-passo:
2) [tex]a_{n} = a_{1} . q^{n-1}[/tex]
[tex]a_{4} = a_{1} . q^{n-1}\\375 = a_{1} . 5^{4-1}\\375 = a_{1} . 5^{3}\\375 = a_{1} . 125\\ a_{1} =\frac{375}{125} \\\\ a_{1} = 3[/tex]
Alternativa C
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3) J = C. i. t
J = 1200 2 . 14
100
J = 12 . 2 . 14
J = 24 . 14
J = R$ 336,00 Alternativa A
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4) C + C. i . t = M
500 + 500 . i . 6 = 560
100
5 . i . 6 = 560 - 500
30 i = 60
i = 60
30
i = 2% Alternativa A
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5)
[tex]A+ B = \left[\begin{array}{ccc}0&5\\1&4\end{array}\right] + \left[\begin{array}{ccc}2&2\\0&1\end{array}\right] = \left[\begin{array}{ccc}2&7\\1&5\end{array}\right][/tex]
Alternativa B
