Show that 0.75 is a rational number Explain why is an irrational number IB Math Studies 2.2 Numbers in Calculations 1. How many significant figures does each number have? To what place value has the number been rounded? a) 43.5 b) 5673.7 c) 1200 d) 4.001 e) 0.00452 f) 0.00340 g) 784000 h) 0.450 i) 4503450 2. Round the following values to the requested number of significant figures or place value: a) 2.526 [2 sf] e) 0.4523 [2 sf]
Show that 0.75 is a rational number Explain why is an irrational number IB Math Studies 2.2 Numbers in Calculations 1. How many significant figures does each number have? To what place value has the number been rounded? a) 43.5 b) 5673.7 c) 1200 d) 4.001 e) 0.00452 f) 0.00340 g) 784000 h) 0.450 i) 4503450 2. Round the following values to the requested number of significant figures or place value: a) 2.526 [2 sf] e) 0.4523 [2 sf]