Question

A)1,5.10^4.4.10^8


B)5.10^11 x 1,4.10^3


C)1,5.10^4 x 4.10^8

PFVR ME AJUDEM

Answer 1

$a) \: 1.5 \times {10}^{4} \times 4 \times {10}^{8} = \\ 1.5 \times 4 \times {10}^{4} \times {10}^{8} = \\ 6 \times {10}^{4 + 8} = \\ 6 \times {10}^{12}$

$b) \: 5 \times {10}^{11} \times 1.4 \times {10}^{3} = \\ 5 \times 1.4 \times {10}^{11} \times {10}^{3} = \\ 7 \times {10}^{11 + 3} = \\ 7 \times {10}^{14}$

a c) é igual a a)