In how many ways can 5 children be arranged in a line such that i. Two particular children of them are always together.
ii. two particular children of them are never together.

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.

Find the axis of symmerty for x y=x squared -4x-8

What is the solution to the system of equations? y=1.5-3 y=-x