What are the solutions to the following system of equations? select the correct answer below. y = x2 − 4x + 3 2x + y = 6 a. (−1, 8) and (3, 0) b. (−1, 3) and (8, 0) c. (0, 8) and (3, −1) d. (3, 8) and (−1, 0)

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft