Question

Ayudassssssssssssssssssssssssss porfis es para hoy

Answer 1

Respuesta:

$a)4.2 \times {10}^{3} \times 2 \times {10}^{ - 7} \\ = 8.2 \times {10}^{ - 4}$

$c) \frac{8 \times {10}^{ - 7} }{2 \times {10}^{ - 9} } = 4 \times{10}^{ - 7 - ( - 9)} = 4 \times {10}^{2}$

$d) \frac{3.5 \times {10}^{15} }{7 \times {10}^{20} } = \frac{3.5 \times 10 \times {10}^{14} }{7 \times {10}^{20} } = \frac{35}{7} \times {10}^{14 -20 } \\ = 5 \times {10}^{ - 6}$