Let D be the endpoint of the angle bisector opposite A on lying on side BC. The angle bisector theorem states that the ratio of BD to CD is equal to the ratio of AB to AC. In this case, you have

(This is the same equation that you have, it's just rearranged.)
Multiply both sides by

and 15.


Now you can solve for

.


0.8 this is the answer 3-(22 tenths)=0.8
1. 
a= 1 , b= -2 , c= -1


x=1
now use the x value to find y

y = -2
vertex (1,-2)
Any of the following answers are correct:
-The function moves down to -6 on the y axis
-The function moves down 9 points from its original position on the y axis
-The function performs a vertical shift, down to -6 on the y axis
Answer:
the height = 5cm
the base = 2cm
Step-by-step explanation: