Question #42446

1 Answer
Dr. Hayek
Sep 21, 2015

a) #4.0xx10^2#
b) #14.87xx10^(-9)#
c) #53.0991#

Explanation:

a) #1200.0/3.0 = 4.0xx10^2#
2 significant figures since #3.0# is 2 significant figures only.

b) #8.75xx10^(-9) + 6.1157xx10^(-9) = 14.87xx10^(-9)#
2 decimal places since #8.75# contains two only.

c) #178.90456 - 125.8055=53.0991#
4 decimal places since #125.8055# contains four only.

You can refer to the following rule:
enter image source here

Source: My teacher notes .

Related questions
Impact of this question
871 views around the world
You can reuse this answer
Creative Commons License