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19.03.2020 •
Mathematics
3 and 1/4 multiplied by 7
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Ответ:
27.75
Step-by-step explanation:
(3+1/4)×7
=(3×4+1)/4×7
=(12+1)/4 × 7
=13/4× 7
=91/4
=27 3/4
or=27.75
Ответ:
hypotenuse = 7.3
Step-by-step explanation:
the length two legs of the given triangle are 7 and 2 respectively.
using pythagoras theorem
a^2 + b^2 = c^2
7^2 + 2^2 = c^2
49 + 4 = c^2
53 = c^2
7.3 = c