JAMB - Mathematics (2014 - No. 3)
Express the product of 0.00043 and 2000 in standard form.
8.6 x 10-3
8.3 x 10-2
8.6 x 10-1
8.6 x 10
Giải thích
0.00043 x 2000
= 43 x 10-5 x 2 x 103
= 43 x 2 x 10-5+3
= 86 x 10-2
= 8.6 x 101 x 10-2
= 8.6 x 10-1
= 43 x 10-5 x 2 x 103
= 43 x 2 x 10-5+3
= 86 x 10-2
= 8.6 x 101 x 10-2
= 8.6 x 10-1