Question

I have a practice assignment before my big unit test tomorrow. I understand every subject except for volumes of a solid of revolution. I am going to post the questions from that section and if you could please show me the answers and how to get to them. I would greatly appreciate it! I really need to understand this concept!
*In Problems 1-5, let R be the region bounded by y= (square root)x , y = (square root)1, and x =(square root)4.

Answer 1

Each problem will describe a solid generated by rotating R about an axis. Write an integral expression that can be used to find the volume of the solid (do not evaluate).
1. The solid is generated by rotating R about the x-axis.
2.The solid is generated by rotating R about the y-axis.
3.The solid is generated by rotating R about y = 1.
4. The solid is generated by rotating R about x = −2.
5. The solid is generated by rotating R about y = 3.

In Problems 1-5, let R be the region bounded by y = x ^2 + 1 and y = x + 1.Each problem will describe a
solid generated by rotating R about an axis. Write an integral expression that can be used to find the
volume of the solid (do not evaluate).

1. The solid is generated by rotating R about the y-axis.
2. The solid is generated by rotating R about the x-axis.
3. The solid is generated by rotating R about x = 1.
4. The solid is generated by rotating R about y = 2.
5. The solid is generated by rotating R about x = -3.

Answer 2

could u take a snapshot and attach if possible ?

Answer 3

*In Problems 1-5, let R be the region bounded by y= (square root)x , y = (square root)1, and x =(square root)4.

Answer 4

whats with : y = (square root)1, and x =(square root)4. ?

Answer 5

I didn't know how to put in the square root button

Answer 6

ill try to take picture hold on, its work problem in my online textbook. let me figure this out

Answer 7

take a screenshot of problem and attach the pic...

Answer 8

okay take ur time :)

Answer 9

do you know how to take a screenshot because I don't...

Answer 10

install this :
http://app.prntscr.com/

Answer 11

are you still able to help me?

Answer 12

@primeralph

Answer 13

start by sketching the region