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WAEC - Mathematics (2009 - No. 17)
Express 2.7864 x 10
-3
to 2 significant figures
0.28
0.27
0.0028
0.0027
Forklaring
2.7864 x 10
-3
= 0.0027864
= 0.0028(approx. 2 s.f)
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