Which rational expression has a value of 1 when x = –1?

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.

yes. we do proportions in probabilities.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)