Ab is parallel to cd, and ef is perpendicular to ab. the number of 90 degree angles formed by the intersections of ef and the two parallel lines ab and cd is

90 degrees angle

Step-by-step explanation:

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )

answer is 144

step-by-step explanation: