The answer for the calculation (3.65 x 1023 ) x (4.78 x 10-45)/(8.55 x 10-9) , rounded off to three digits, is approximately 2.04 x 10-15. Is this true or false?
I got 2.04 x 10^-13.
So would that be false? Or could we round it two places to -15?
I got 2.04 x 10^-13.
So would that be false? Or could we round it two places to -15?
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You are correct - the answer is 2.04 x 10^-13. The answer is false - this isn't rounding - the other answer is off by two orders of magnitude. That'd be like rounding 100 off to 10,000.