6) -5x - 7y= 11
x - 2y=-9

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false