Answer:
Step-by-step explanation:
12.
Statements:
1. RS bistecs PQ at T; PQ bisects RS at T.
2. RT is congruent to ST; PT is congruent to QT.
3. Angle T is congruent to angle T.
4. Triangle PTS is congruent to triangle QTR.
Reasons:
1. Given.
2. Definition of a bisector of a line segment.
3. Reflexive Property.
4. SAS Postulate
13.
Statements:
1. AB is congruent to AD; AC bisects angle BAD.
2. Angle BAC is congruent to angle DAC.
3. AC is congruent to AC.
4. Triangle ABC is congruent to triangle ADC.
Reasons:
1. Given.
2. Definition of a bisector of an angle.
3. Reflexive Property.
4. SAS Postulate.
Answer:
3x^2+24x=-48 -> one solution, x=-4
4x^2-16x=0 -> has two solutions, x=0 and x=4
5x^2+2=4x -> has no solutions,
3(x+5)^2=-2 -> has no solutions.
Step-by-step explanation:
Answer: D. 10.83
Step-by-step explanation: 3.6/6=6.5/x x~10.83
5 more because Mary had double and it was 5