Question

if A =(12.0+- 0.1)cm and B =(8.5+-0.5)cm Find A+B and B+ A​

Answer 1

Answer:

19.9 cm and 19.9 cm

Explanation:

A = (12.0-0.1) cm = 11.9 cm

B = ( 8.5-0.5) cm = 8 cm

A+B = (11.9+8)cm = 19.9 cm Ans

and B+A = ( 8+11.9) = 19.9 cm Ans

Hope this will help you

Answer 2

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A = [12.0 + (-0.1)]

B = [(8.5) + (-0.5)]

A+B = [12.0 + (-0.1)] + [(8.5) + (-0.5)]

= 19.9