3.How many significant fiqures are shown in each of the following rs? (Note: in

Question

3.How many significant fiqures are shown in each of the following rs? (Note: in some cases, more than one response may be In these cases, state all the possible correct answers.) a. 1432f. O.00210 b. 5.91 x 104g. 10.003 c. 4.00x102h. 30 d. 0.309i. 30.0 e. 500j. 1,000 (there are 1000 m in 1 km) 4.Round the following numbers to the number of figures shown in parentheses. If necessary, write your answer in scientific notation to explicitly show the proper number of significant figures. a. 139 (2)e. 1.9949 (3) b. 5.931 (2)f. 734790 (2) c. 6.665 (2)g. 15.5 (2) d. 1.9950 (3)h. 16.5 (2) 5.Determine (to the proper number of significant figures) the common (base 10) logarithm of the following numbers.

Explanation / Answer

3.a) 1432 : 4 significant figures.

b) 5.91*104 = 614.64 : 5 significant figures.

c) 4.00*102 = 408.00 : 5 significant figures.

d) 0.309 : 3 significant figures.

e) 500 : 1 significant figure.

f) 0.00210 : 3 significant figures.

g) 10.003 : 5 significant figures.

h) 30 : 1 significant figure.

i) 30.0 : 3 significant figures.

j) 1000 : 1 significant figure.

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