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Solve the following with regard to significant figures. (a) sqrt(4.5 - 3.31)(b) 5.9 xx 10^(5) - 2.3 xx 10^(4) (c) 7.18 + 4.3(d) 6.5 + 0.0136 |
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Answer» Solution :(a) Among the two, the least NUMBER of significant after decimal is one `sqrt(4.5 - 3.31) = sqrt(1.19) = 1.09` (B) The number of minimum significant figures is 2 `5.9 xx 10^(5) - 2.3 xx 10^(4) = 5.9 xx 10^(5) - 0.23 xx 10^(5) = 5.67 xx 10^(10) = 5.7 xx 10^(10)` (C) The lowest least number of significant digit after decimal is one 7.18 + 4.3 = 11.48 Rounding off we GET 11.5 (d) The lowest least number of significant digit after decimal is one 6.5 +0.0136 = 6.5136 = 6.5 |
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