State the number of significant digits and the implied precision of the given nu

Question

State the number of significant digits and the implied precision of the given number. 1.22 times 10 Superscript 4 seconds The number 1.22 times 10 Superscript 4 has nothing significant digit(s). (Type a whole number.) What is the implied precision of the number 1.22 times 10 Superscript 4 seconds? A. The number is precise to the nearest thousand seconds. B. The number is precise to the nearest ten seconds. C. The number is precise to the nearest second. D. The number is precise to the nearest hundred seconds.

Explanation / Answer

we can write the number .22*10^2 as 12200

so the number has 3 significant digits 122 and 0s are just the placeholders

the last signficant digit 2 is at the 3 position , which is the hundredth position . Hence the number is precise to the nearest hundred seconds , choice D

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