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I need help with question 9 and 10 please 7) FIND THE VOLUME OF THE SOLID 8 ) FIND THE VOLUME OF THE SOLID GENERATED

I need help with question 9 and 10 please

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7) FIND THE VOLUME OF THE SOLID 8 ) FIND THE VOLUME OF THE SOLID GENERATED BY REVOLVING THE GENERATED BY REVOLVING THE REGION REGION BOUNDED BY y=JX, 4=1, X=D BOUNDED BY y= X AND y=X2 ABOUT THE y-AXIS ABOUT THE LINE X= - 1 9) FIND THE WORK REQUIRED TO PUMP THE FLUID WITH WEIGHT DESITY ,Ibs/ 10 ) A loft CHAIN WEIGHS 25 lbs IS HANGING FROM A CEILING . OUT OF THE TANK BELOW : HOW MUCH WORK IS REQUIRED TO LIFT.. THE LOWER END OF THE CHAIN TO UP T GROUND THE CEILING ? PICTURE ! Itt uft 10 it FINISH START

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