Answer: A
i hope it helped
Answer:
Radius, r, is 3.75
Step-by-step explanation:
From the given diagram,
AB = 9
AC = 6 + r
BC = r
Thus applying the Pythagoras theorem, we have;
=
+ 
=
+ 
36 + 12r +
= 81 + 
collecting like terms,
12r = 81 - 36
12r = 45
r = 
= 3.75
r = 3.75
The radius is 3.75.
4x+2x=180
6x= 180
Divide by 6
X= 30
Answer:
21
Step-by-step explanation:
30 Percent of 70 could be written .3 × 70. .3 times 70 is 21