4. Given B = 2 1 1 3 2 1
2 1 2

(a) Find the determinant, minor, cofactor and adjoint of matrix B.

(b) Find B-'. Hence solve the following simultaneous equations. 2x + y + 2 = 20 3x +2y + = = 14 2x + y +2= =12​

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

Can (2,3 and square root 10) be sides ona right triangle?

The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2