U² + 6u - 27
u² + 9u - 3u - 27
(u - 3)(u + 9)
Answer:

Step-by-step explanation:

Apply formula:
and

We get:







Hence final answer is

Answer:
36 ft
Step-by-step explanation:
<u>Given </u><u>:</u><u> </u>
We need to convert it into feets. We know that ,
1 yard = 3 feet
12 yards = 12 * 3 ft
12 yards = 36 ft .
<u>Hence </u><u>the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>36</u><u> </u><u>feets </u><u>.</u>
In Cartesian coordinates, the region (call it
) is the set

In the plane
, we have

which is a circle with radius
. Then we can better describe the solid by

so that the volume is

While doable, it's easier to compute the volume in cylindrical coordinates.

Then we can describe
in cylindrical coordinates by

so that the volume is

The bases of the trapezoid are 24 m and 9.6 m.
The area of the trapezoid is 141.12 m².