The graph of a function crosses the \( x \) -axis at \( - 6 \) and \( 2 \) and crosses the \( y \) -axis at \( 12 \) . Which equation could the graph represent? A. \( y = x ^ { 2 } - 4 x - 12 \) B. \( y = - x ^ { 2 } - 4 x + 12 \) C. \( y = - x ^ { 2 } + 4 x + 12 \) D. \( y = x ^ { 2 } + 4 x - 12\) 

4. \( A B C \) үшбұрышында \( B C \) биссектрисасы сызылған, \( A K=4 \) см және \( K S=5 \mathrm{~cm} A B C \) үшбұрышының периметрі 36 см AB және BC қабырғаларын табыңыз.

4. Which of the following can be the sides of a right triangle? (i) \( 2.5 \mathrm{~cm}, 6.5 \mathrm{~cm}, 6 \mathrm{~cm} \). (iii) \( 2 \mathrm{~cm}, 2 \mathrm{~cm}, 5 \mathrm{~cm} \). (iii) \( 1.5 \mathrm{~cm}, 2 \mathrm{~cm}, 2.5 \mathrm{~cm} \).

A square prism measuring 2 m by 2 m in base length and 5 m in height has a half-sphere attached to the top. What is the total surface area of this composite solid?

A tree is broken at a height of 5 m from the ground and its top touches the ground at a distance of 12 m from the base of the tree. Find the original height of the tree.

5. \( A B C \) гурвалжны \( A B=B C=8 \) см ба талбай нь \( s=16 \mathrm{~cm}^{2} \) бол өнцөг \( A B C= \) ?