Which of the following constants can be added to x2 - x to form a perfect square trinomial? a)1/2 b)1/4 c) 1

 The correct option is (b)

Step-by-step explanation:  We are given to select the correct constant that can added to , so thet it becomes a perfect square trinomial.

A perfect square trinomial is of the following form:

Let the constant to be added be 'b'. Then, we can write

So, for the given expression to be perfect trinomial,

Thus, (b) is the correct option.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925