waecmaths question:
Find the product of 0.0409 and 0.0021 leaving your answer in the standard form
Option A:
$8.6\times {{10}^{-6}}$
Option B:
$8.6\times {{10}^{-5}}$
Option C:
$8.6\times {{10}^{4}}$
Option D:
$8.6\times {{10}^{5}}$
waecmaths solution:
$4.09\times {{10}^{-2}}\times 2.1\times {{10}^{-3}}=8.589\times {{10}^{-5}}\approx 8.6\times {{10}^{-5}}$
maths year:
maths topics: