Question

Can someone help me with the question 10 of my assignment. I will attach it now

Answer 1

Please the question 10 missing....Help!

Answer 2

Do you Know the answwer?

Answer 3

V = volume of the annular region is (pi * r^2 - pi * 5^2)* height, where height = 3in
need to find r

V = 1 cubic yard = 27 cubic feet (given)

(pi*r^2 - pi*5^2) * 3in*1ft/12in = 27
pi*r^2 = (27*4) + pi*5^2
r^2 =( 27*4 + pi*5^2)/pi
r = sqrt(27*4/pi+ 5^2)
= 7.71

So width of border = 7.71 - 5 = 2.71 ft

Ans. 2.71 ft

Answer 4

Thanks