Ihave a test due !

which equation has the same solution as x^2 -6x -12 = 0?

(1) (x + 3)^2 = 21

(2) (x - 3)^2 = 21

(3) (x + 3)^2 = 3

(4) (x - 3)^2 = 3

you : d

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

Consider the function y = f(x)=3^x the values of f(1/2) and f(1/4). rounded to the nearest hundredth, are__and__ respectively

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).