Mathematics question answer fast !

Statement Reason

1. altitude AD bisects ∠BAC 1. Given

2. DB is congruent to DC 2. definition of bisect

3. m∠BDA = 90° 3. definition of altitude

4. m∠CDA = 90° 4. definition of altitude

5. m∠BDA = m∠CDA 5. transitive property

6. AD is congruent to AD 6. reflexive property

7. tri BDA is congruent to tri CDA 7. SAS

8. AB is congruent to AC 8. CPCTC

9. tri ABC is isosceles 9. definition of isosceles

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

the answer is 9.8975

explanation:

when you multiply the "39.59" with the 25% it reduces it and shows its final discounted price. hope this !

step-by-step explanation: