First note the intersections of each pair of lines.
x = 3 ⇒ y = 2•3 + 1 = 7 ⇒ (3, 7)
y = -3 ⇒ -3 = 2x + 1 ⇒ x = -2 ⇒ (-2, -3)
y = -3 and x = 3 ⇒ (3, -3)
Using the disk method, we consider disks with thickness ∆y and radius equal to the horizontal distance between the line y = 2x + 1 (or x = (y - 1)/2) and the axis of revolution, x = 3. Each disk will then contribute a volume of
∆V = π (radius)² (thickness) = π/4 (y - 1)² ∆y
As we let ∆y go to zero and let the number of disks go to infinity, the total volume of the resulting cone will be given by the integral
Answer:
A
Step-by-step explanation:
I just saw that the median was 44, and it only displays that for A :P
<span> x = -3 x = 9<span> x = -9 that is it 3 ways to answer</span></span>
Answer:
7 benches
Step-by-step explanation:
Ads cost him 450 in 1 month an it costs 100 to make a bench. he then sells that bench for 175 but looses 100 for making it. 75*7 is 525 that breaks it.