Which of the following equations is not a disguised quadratic equation?
choose the incorrect equation below.
o a. 2x² - 118² +12=0
o b. 3x-2-5x-1-2=0
oc. x -x3-6=0
od. x213-9x1/3 + 8 = 0

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.