Question

To what decimal place should each answer be rounded? How many significant figures does the rounded answer have? a 9 cm + 2.8 cm-11.8 cm (unrounded) O 1 significant figure 2 significant figures O 3 significant figures o ones place er rounding, the number O tenths place and thus has should be reported to the O hundredths place b 0.135 atm 0.6 atm-0.735 atm (unrounded) O 1 significant figure. and thus has2 significant figures 3 significant figures O ones place er rounding, the number O tenths place should be reported to the O hundredths place Ihere is a hint available! ew the hint by clicking on the ttom divider bar. Click on the vider bar again to hide the hint Close

Answer 1

a) 9cm+2.8cm=11.8cm~ 12 cm

b) 0.135atm+0.6atm=0.735atm~ . 7 atm

a) rounded to the ones place and 2 significant figures. As we have 9 cm which have no decimal so we have put our answer without any decimal  

b) rounded to tenths place and 1 significant figure.we have minimum decimal upto one place. 6 atm so answer should be reported to one decimal