Asked by angiie

what is the value of the expression (4.32 x 10^-3) + (6.025 x 10^-3) ?

i came up with either
0.010345*10^-3 or 10.345*10^-3 and when i check them they're both wrong.
Answered by Anonymous
well, they are both to the same power, but in the hundredths digit, that is the last significant digit.

10.25 E-3 You cant go further than the least sig digit in 4.32
Answered by bobpursley
Actually, I gave you the answer from a measurement standpoint. Your course title Math is not a physical science. So, the math folks assume any number is infinitely precise, so I am not certain. THey might want it in scientific notation, as in 1.025E-2. And, I noticed I made an error, I meant 10.35E-3. Your second answer is correct, mathmetically, but in physical science, you have to concern yourself with precision.
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