Question

A B D E hone of the 7.1 above What is 700 in scientific notation? 7.01x10 2 7 7x10 2 none of the above What is 4,9000,000,000 in scientific notation? 4.9x10 9 4.9x10-9 4.9x10 8 4.9x10-11 What is 5326.6 in scientific notation? 5.3x10A3 5.3266x103 5326.6x10 3. 5.4 none none of the Rewrite 1.041679 to 3 sig figs. 1.05 1.04 1.012 1.2 above none of the Rewrite 0.0217613 to 3 sig figs. 0.03 0.0218 0.032 above none of the 005 0.067 0.051 0.520 above Rewrite 0.05197801 to 3 sig figs Rewrite 0.0217652 to 3 sig figs. 0.0218 0.021 0.1 0.03 0.031

Answer 1

700 in scientific notation 7x10²

49000000000 in scientific notation 4.9x10¹¹

5326.6 in scientific notation 5.3266x10³

generally scientific notations are written by placing a decimal point after first significant figure.

1.041679 in 3 significant digit 1.04

All non-zero digits are significant and If 0 is present between two non zero digit it is counted as a significant digit

0.0217613 in 3 significant digit 0.0218 (also this has been rounded off)

If 0 is present left to the non-zero digits it is never counted as a significant figure.

0.05197801 in 3 significant digit 0.0520

Here 19 is rounded off as 20. And zero placed right to the nonzero digits are counted as significant figures.

0.0217652 in 3 significant digit 0.0218

Same case here, zeros left to the non zero digits are not significant and 7 is rounded off to 8.