exam Maths Puzzle Numerical Ability

Help please: A triangular region is enclosed by the x-axis and the lines with equations, -3x + y = 0 and y = -3x + 6. Find the coordinates of the three vertices of the region.

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exam Other Question

Geometry.

The volume of the box is represented by (x^2 + 5x + 6)(x + 5). Find
the polynomial that represents the area of the bottom of the box.

Thanks http://img233.imageshack.us/img233/2087/geometrygy6.jpg

Referring to that picture,

1) If AD = 12 and AC = 4Y - 36, Find the value of y. Then find AC and DC.

2) If ED = x +