Question

2.resolva na forma de notação cientifica a. 3,1×10³+4,3×103 b. 3×10²×4×10³ c. 5×10⁴×8×10⁵ d. 8×10⁶÷4×10³ e. 4×10²+5×10² f. 6×10⁴×4×10² g. 3,210³×7,1×10⁶ h.15×10⁶÷3×10³ j. 24×10²⁷÷6×10⁹​

Answer 1

Resposta:

a)

$3.1 \times 1000 + 442.9 \\ 3100 + 442.9 \\ 3542.9 \\ \frac{35429}{10} .3542 \frac{9}{10}$

b)

$12 \times {10}^{2 + 3 } \\ 12 \times {10}^{5} \\ 1.2 \times {10}^{6}$

c)

$40 \times {10}^{4 + 5} \\ 40 + {10}^{9} \\ 4 \times {10}^{10}$

d)

$2 \times {10}^{6} \times {10}^{3} \\ 2 \times {10}^{9}$

e)

$9 \times {10}^{2} \\ 9 \times 100 \\ 900$

f)

$24 \times {10}^{4 + 2} \\ 24 \times {10}^{6} \\ 2.4 \times {10}^{7}$

g)

$\binom{321}{300} | 3 \times \frac{71}{10} \times {10}^{6} \\ \frac{ {321}^{3} }{ {100}^{3} } \times 71 \times {10}^{5} \\ \frac{ {321}^{3} }{10} \times 71 \\ \\ \frac{ {71 \times 321}^{3} }{10} = 234840743.1$

h)

$5 \times {16}^{6} \times 1000 \\ 5000 {16}^{6} = 83886080000$

i)

$4 \times {10}^{27} \times {10}^{9} \\ 4 \times {10}^{36}$