Question

Potência de 10 (4,0X 10 elevado a 5)X(3,0x10 elevado a-3)

Answer 1

$4 \times {10}^{5} \times 3 \times {10}^{ - 3}$

$4 \times 3 = 12 \\ 5 - 3 = 2$

$12 \times 10 ^{2} \\ = 1.2 \times 10 ^{3}$