can someone find the answers to these questions cuz my answers dont match with the real answers?

Question

waheguru · Answer

attachment

waheguru · Answer

zoom in if it is too small

owlfred · Answer

Dumbcow and jimmyrep, did you all get my emails?

waheguru · Answer

owl fred plz dont go off topic im rally serius right now

dumbcow · Answer

no, you have my email?

waheguru · Answer

c owl fred now my question is off topic

anonymous · Answer

no

dumbcow · Answer

waheguru, do have all the formulas for volume/surface area

owlfred · Answer

Sorry Waheguru. dumbcow and jimmy, will you send me your email address at owlfred@openstudy.com. Thanks!

waheguru · Answer

yes but my answers dont match the answers at the back of the book i checked but im not doing anything wrong

waheguru · Answer

can someone do 1 question and show me what they got plz

dumbcow · Answer

ok part a)
radius = 9
height = 9.8
V = pi*9^2*9.8 = 793.8pi
SA = 2pi*9^2 + 2pi*9*9.8 = 338.4pi

waheguru · Answer

exackl what i got but its wrong according 2 my book

dumbcow · Answer

what do they have in the book, is it in terms of pi?

waheguru · Answer

never mind the answer was right sry bro

waheguru · Answer

wooops

dumbcow · Answer

no prob
hey at least you know you're doing it right

dumbcow · Answer

owlfred, why do you need the email?
is this for openstudy info and alerts, things like that

myininaya · Answer

cow hes trying to make you his new prisoner

dumbcow · Answer

haha
nevermind, got the email i forget its my secondary email i listed here