Answer:
9
Step-by-step explanation:
<span>As x approaches positive infinity, f(x) approaches negative infinity, since the graph goes down</span>
615.44 = (3.14)(radius)^2
<span>radius = square-root of (615.44/3.14) </span>
<span>diameter = radius x 2 </span>
<span>diameter = 28 inches
3.14
</span>
Answer:

Step-by-step explanation: