1. Express the following quantities in scientific notation and indicate how many significant figures each has. a) 12400 b) 11500.0 c) 0.0014090 2. Express the final answer with the correct significant figures: a) (5.74) (38.27)/(0.001250) b) (1.76×104) (0.120×10-) c) 1.000 + 10.2 3. Round off each of the following numbers to three significant figures:

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.