Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. There ar
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I assume you're revolving the region with those bounds about the x-axis, and supposed to find the volume.
Via the disk method,
Recall the half-angle identity for sine:
Via the disk method,
Recall the half-angle identity for sine:
Answer:
Step-by-step explanation:
Using the data given in the exercise, we can draw the diagram attached, where "h" is the height of the building reached by the top of the ladder.
Notice that there are two similar triangles.
So, you can set up the following proportion:
Finally, in order to calculate the height on the building reached by the top of the ladder, you must solve for "h".
Therefore, the value of "h" is :
