skywil8981
26.01.2021 •
Mathematics
Whats equivalent to 3x^2 + x-1
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Ответ:
Area of a circle = pi • radius^2
A = πr^2
Your circle's diameter is 3 inches, so the radius is 1.5 inches.
A = π • (1.5)^2
≈ 7.065
≈ 7.1