Sorry, but this can't be answered
the question isn't there
Answer:
Given: R is the midpoint of QS.
QS=40
Now,
QR=40/2(R IS THE MIDPOINT)
=20
The mom is 36
The twins are 11
1. 58-25= 33
2. 33/3= 11 <----The twins age
3. 11+25= 36 <----The moms age
Average rate of change can be calculated by the following
Δy/Δx
Our Δx refers to displacement.
Δx = 4 - 64 = -60
Our Δy refers to our Δf(x)
To get our f(x) values, we must plug in 64 and 4 into the function f(x)
f(64) = 8√64 = 64
f(4) = 8√4 = 16
Δf(x) = 16 - 64 = -48
So our rate of change is -60/-48 = 0.8
I believe the answer should be positive 0.8, but that's my best estimate.