dondre54
04.02.2022 •
Mathematics
Without using a calculator evaluate:
- 81 + 203²
Solved
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Ответ:
Step-by-step explanation:
multiply 203 by 200, you get 20300 and then multiply the 3 and you get 20909. Then subtract 81 from it and you have 20828 as the final answer.
Ответ:
Step-by-step explanation:
This problem requires the formula "a² + 2ab + b²".
-81 + 203²=> -81 + (200 + 3)²=> -81 + (200² + 2(200)(3) + 3²)=> -81 + (40000 + 1200 + 9)=> -81 + (41209)=> 41209 - 81=> 41128Hence, 41128 is the answer without using calculator.
Ответ:
262.5
Step-by-step explanation:
V = l x b x h
=14x25/4x3
=262.5