Answer:
Step-by-step explanation:
Given the function f(m)=20-0.25m to represent the amount of money f(m) she has left after talking m minutes, the zero of the equation can be gotten by setting f(m) to 0
f(m)=20-0.25m
0 =20-0.25m
-20 = -0.25m
m = -20/-0.25
m = 80
Hence Trudy will have talked for 80minutes if she has no money left
A^2+b^2=c^2 so 4(4) +3(3) is 16+9= 25 and the square root of that is 5.
The Constant Of Proportionality is 45.2
Answer: C
Step-by-step explanation:
We know that
, and thus by the exterior angle theorem,

Thus, 