Answer:
The radius r of this circle as a function of the time t :

Step-by-step explanation:
Speed of the circular ripple = S = 35 cm/s
Radius of the ripple at time t = r



The radius r of this circle as a function of the time t :

Answer:
Step-by-step explanation:
y = 3x is an example of such an equation.
100 = (22/7 )* r ^2
or r^ 2 = (100*7)/22
or r = 5.64 ft
Answer:
The 1st graph
Step-by-step explanation:
The quickest and easiest way is to just graph y < x² + 4x + 5. When you do so you should be able to see your answer.