Find the equation of the axis of symmetry of the following parabola algebraically. y = 3x^2 + 6x – 12​

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.