Step-by-step explanation:
Richard and teo age is 51 years old
Answer:
The radius of the circles are
and 
Step-by-step explanation:
Let
x-----> the radius of larger circle
y----> the radius of smaller circle
we know that

-----> equation A
Remember that
-----> equation B
substitute equation B in equation A and solve for y





Find the value of x


therefore
The radius of the circles are
and 
Answer: i think it is 680 or 340, but my gut says 680...
Step-by-step explanation: 4 x 10 = 40 x 17 = 680
To solve this, simply switch the X and y variables within one equation, and upon doing so, see and check if it equals to the other equation.
f(X) = -X + 4/5
Y = -X + 4/5
X = (-Y+4)/5
5X = -Y + 4
-Y = 5X - 4
Y = -5x + 4
Yes, by looking at the second equation it is an inverse of the first one.
Answer:
Rectangle C is not similar to the other 2
Step-by-step explanation:
3*2=6
1*2=2