Identify the missing parts in the proof Given: ABC is a right angle
DB bisects ABC
Prove: mCBD=45 degrees

A:
division,
definition of bisects,
definition of right angle,
given
B:
measure of angle ABC=90
Measure of angle ABC=180
Measure of angle ABD=90
Measure of angle CBD=180
C:
Addition
Angle addition postulate
Definition of right angle
Substitution property
D:
Angle ABC=90
Angle ABD=90
2 times the measure of angle ABC=90
2 times the measure of angle CBD=90

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a.m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?