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View Full Version : True or False? (6.2 10-3)(2 104) = 1.24 102


nikki1216
Sep 15, 2010, 01:32 PM
Is this equation true or false?
(6.2 · 10-3)(2 · 104) = 1.24 · 102

morgaine300
Sep 15, 2010, 04:04 PM
Order of operations: what do you have to do first in the left parenthesis?

Actually, I don't know where you got either the 1.25 or 102. (I just know those two sides don't come out anything close to each other.) Could you show your work?

Unknown008
Sep 15, 2010, 10:35 PM
If, by the dot you mean multiplication, then you should do the multiplication first.

Then, you do the subtraction. Then, you multiply the two numbers, on both sides. If they give the same result, then it's true. If not, then it's false.