angie249
10.03.2021 •
Mathematics
4. Simplify using the horizontal method. (2n2 + 5n + 5)(2n - 4)
4n3 + 2n2 - 10n - 20
4n3 - 2n2 + 30n - 20
4n3 + 18n2 - 30n - 20 ls
4n3 + 10n2 - 2n - 20
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Ответ:
Ответ:
21.98
Step-by-step explanation:
It is because the formula for the circumference of a circle is 2 x 3.14 x r so I do the 2 x 3.14 and I get the 6.28 and then 6.28 x 3.5(radius) is 21.98.