2x^3+7x^2+12x-8 is the answer
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
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Answer:
uh what is this address for or am i not supposed to be in this
Step-by-step explanation:
sorry if im getting in your buisness
Answer:
yes
Step-by-step explanation: