Question 7 Given = 2.0±0.1 What is y = 3.0? Yav = y (xav) = dy Ay = Ax de ‘Use correct significant figures. Use correct precision. 0

3. Solve the following problems, stating answers to the proper number of significant figures: (a) 12.62 + 1.5 + 0.25 = (b) (2.25 x 10³) (4.80 x 104) = (c) 10.4 + 3.75 (1.5 x 104) =

I don't understand the wording. The least significant digit means the last digit?  7.700 X 2.1 = 16.17     would the uncertainty be  0.01 ? 2.132 + 17 + 4.04 = 23.172   would the uncertainty be 0.001 ?

3.) Perform the following calculations. Express your answers in scientific notation (1 pt each) using the correct number of significant figures. a) (0.000414000) + (7.80 x 10-11) 40 14×1054 7.8 X 10-11 = 0.53 077X10 [5.3077x10 c) (9.612 x 5.00)- 35.20 -4+11 9612x5-35.2 48.06-35.20 $12.95 - (1.286 X10' b) 118 +3020.760 3020.760 + 118.000 13138.760 |scientific No *13138.761 C 7 -0.03906 11 3.906x10