General Instructions: Read each problem carefully and follow all instructions. T

Question

General Instructions: Read each problem carefully and follow all instructions. Total Points: 85 Express the following values in scientific notation, keeping the proper number of significant figures. Complete the following calculations, keeping the proper number of significant figures in the answer (this is the rounded answer). Show your answer both before and after rounding. You need not show your work. 1.11 + 1 +2.019 = 6.7 times 0.1 times 9.888 times 2.00 = (5.2 +5.31) times 7.3 = 42.83/pi^2 = (5952 times 0.107)/(14 times 295) =

Explanation / Answer

Expressing the numbers in scientific notations:

a) 1.46 x 10^ 8

b) 2.59 x 10^ -4

c) 0.88 = 8.8 x 10^-1

d) 3.300x 10^4

e)57 = 5.7 x 10^1

Rounding off

1.11+ 1+ 2.019 = 4.13

13.25

76.723 ( unrounded), 76.72 ( rounded)

4.3439 ( unrounded). 4.344 ( rounded)

0.1542  ( unrounded). 0.15 ( rounded)

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