Answer:

Step-by-step explanation:
The hypotenuses are equal in length of both triangles.





Step-by-step explanation:
here is fig 15
x=36 (v.o.a are equal)
36+y=180
y=180-36=144
y=z=144 vertically
No of people not from their neighborhood=25-20=5
total contact s=25
therefore probability to call a person not from his neighborhood=5/25=1/5
therefore P=1/5
The # halfway in between 21 and 63 is 42.
Answer:
c
Step-by-step explanation: