Answer:A
Step-by-step explanation:
0=-2x^2+x+3
-2x^2+x+3=0
a=-2 b=1 c=3
All circles are similar.
If they were congruent, they would have the same radius's/diameter's.
Circle B = diameter of 6
Circle A = radius of 4
Diameter = 2 * Radius
Circle A = diameter of 4 * 2 = 8
So they have different diameter's, therefore they are not congruent. So they are similar only.
Answer:
6
Step-by-step explanation:
The first number: a
The second number: b
The third number: c
a+b+c=72
b=7a
b-c=18
⇒a=6; b=42;
c= 24
