There are three rules on determining how many significant figures are in a number:
a)
x= 21.00 cm - 20.19 cm
=0.81 cm
number of significant figure = 2
b)
x= (12.0 cm)^3 = 1728 .000 cm^3
number of significant figure = 7
c)
x = 6.9 cm * 2.40 cm =16.560 cm
number of significant figure = 5
d)
x= (16.2 g+ 1.4g)/(11.2 cm^3)
= 1.571428571 g/cm^3
number of significant figure = 10
1. [2 pts] Solve for x in the below expressions. How many significant figures are there...
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