19. Find all the possible values of the missing digit(s) represented by a) 2*6, 8*71, 8*919 are divisible by 11.
b) 396*5, 48675*, 349** are divisible by 9​

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction

- (2, -7)

- lines r and s and lines t and u must be parallel

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex