Combine like terms:
4x2 + 3y + 4x2 - y3

Step-by-step explanation:

if its 4x2 is 4 squared and y3 is cubed then it is

-y cubed + 8x² + 3y

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d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi