Seudónimo Seudónimo
  • 20-01-2016
  • Mathematics
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What's the product of 21 and (6.3 times 10-4)

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Immy88
Immy88 Immy88
  • 20-01-2016
21(6.3 x 10 - 4).  Remember PEMDAS.  Everything done in parenthesis is done first.

Within the parenthesis, there is multiplication and subtraction.  In PEMDAS, multiplication/division comes before addition/subtraction, so 6.3 x 10 = 63.
63 - 4 = 59
21(59) = 1,239.
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