What is the reason for the fourth & ' eighth steps in the proof?

a. sas criterion for congruent triangles.
b. alternate interior angles theorem.
c. transitive property of equality.
d. perpendicular bisector theorem.

answer: perpendicular bisector theorem

step-by-step explanation:

therefore if and ag=gc

and is the perpendicular bisector of

then by perpendicular bisector theorem, da=dc

again if and ah=hb

and is the perpendicular bisector of

then by perpendicular bisector theorem, da=db

therefore, the reason for the fourth & ' eighth steps in the proof is "perpendicular bisector theorem ".

1,918

step-by-step explanation:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: