Question

Find the area, diameter = 12m.

Simplify: 4y(y2-8y+6)-3(2y3-5y2+2)


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Answer 1

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Diameter = 12 meter.

Radius = diameter/2.

= 12/2.

= 6 meter.

Area of a circle = πr2.

Here, pi (π) = 3.14 meter, radius (r) = 6.

Area of a circle = 3.14 × 6 × 6..

= 3.14 × 36.

= 113.04 square meter or 113.04 m2.

Answer - 113.04 square meter or 113.04 m2

${\huge{ Solution}}$


4y(y2-8y+6)-3(2y3-5y2+2).

= 4y3 - 32y2 + 24y – 6y3 + 15y2 – 6.

= 4y3 – 6y3 - 32y2 + 15y2 + 24y – 6.

= -2y3 – 17y2 + 24y – 6.

Answer - -2y3 – 17y2 + 24y – 6


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Answer 2

question:-1

diameter of circle (d) = 12m

radius = d / 2 = 12 / 2 = 6m

area of circle = πr^2

= 22/ 7 × 6 × 6

= 113.1 m^2

question -2

4y (y^2 -8 y + 6) - 3 ( 2y^3 - 5y^2 + 2 )

= 4y^3 - 32y^2 + 24y - 6y^3 + 15y^2 - 6

= - 2y^3 - 17y^2 + 24y - 6.

= - ( 2y^3 + 17y^2 - 24y + 6 )

●hope it helps●