3 years ago

2.7squared add 3.9squared to one decimal place

Mathematics

1 answer:

katrin [286]3 years ago

5 0

$2.7^2=2.7\cdot2.7=7.29\\\\3.9^2=3.9\cdot3.9=15.21\\\\2.7^2+3.9^2=7.29+15.21=\boxed{22.50=22.5}$

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