# L01_hw - Homework Problems Lecture 1 P2 How many...

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Homework Problems Lecture 1 P2. How many significant figures do each of the following numbers have: a b + #"% a b , )"Þ'! a b - (Þ!\$ a b . !Þ!\$ a b / !Þ!!)' a b 0 \$#\$' a b 1 )(!! Solution: a b + #"% o #Þ"% ‚ "! Ê # 3 significant digits a b , )"Þ'! o )Þ"'! ‚ "! Ê % " significant digits a b - (Þ!\$ Ê \$ significant digits a b . !Þ!\$ o \$ ‚ "! Ê " # significant digit a b / !Þ!!)' o )Þ' ‚ "! Ê # \$ significant digits a b 0 \$#\$' o \$Þ#\$' ‚ "! Ê % \$ significant digits a b 1 )(!! It could be any of , , or , so we the number of significant )Þ( ‚ "! )Þ(! ‚ "! )Þ(!! ‚ "! \$ \$ \$ digits can be 2, 3, or 4 , respectively. P3. Write the following numbers in powers of ten notation: (a) 1.156, (b) 21.8, (c)0.0068, (d)27.635, (e)0.219, and (f)444. Solution: a b ! a b , #Þ") ‚ "! " a b - 'Þ) ‚ "! \$ a b " a b / #Þ"* ‚ "! " a b 0 %Þ%% ‚ "! # P6.

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L01_hw - Homework Problems Lecture 1 P2 How many...

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