- - х 1. Determine the number of significant figures in the following Value # of sig. Value # of sig. figures figures 14

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- - х 1. Determine the number of significant figures in the following Value # of sig. Value # of sig. figures figures 140.74 4 0.0041 3.70 x 10" 31.00 1.05 x 1012 1300 7.0400 x 10 847.040 2495 2. Round the following values to 3 significant figures. 3.76411 0.0411984 → 3.76811 150.6142 3.76511 0.013877 11.048176 4.88223 x 10 8.75510 2.0097 x 10-12 → 3. Perform the following calculations and round the final answer to the correct number of significant figures Calculation Rounded Calculation Rounded Answer Answer 18.7644 - 3.472 +0.4101 0.87 + 4.061 + 10.4 17.441+ 3 16 x 841.1 - 16.300 14.044 + 8.11 + 3.4 21.01 x 2.0 3.41 -0.086652 18.4 +12.99 +13.772 +9.704 4. Convert the following into scientific notation or standard notation Standard notation Scientific notation 47,000 0.0008 675,000,000 157,000,000,000,000,000,000,000 0.0000003407 7.66 x 102 7.8 x 10 4.75 x 10" 6 x 10 9 x 10