Question

On some tubes of caulking, the diameter of the circular
nozzle opening can be adjusted to produce lines of
varying thickness. The table shows the length l of
caulking obtained from a tube when the nozzle opening
has diameter d and cross-sectional area A.
48. Determine whether l varies inversely with d. If so,
write an equation relating l and d.
49. Determine whether l varies inversely with A. If so,
write an equation relating l and A.
50. Find the length of caulking you get from a tube
whose nozzle opening has a diameter of 
34
 inch.
d (in.) A (in.2) l (in.)

18
 2
π
56 1440

14
 6
π
4 
360

38
2
9
5
π
6 
160

12
 1
π
6 
90
no
yes; l = } 4
8
5
A
π} 40 in.

Answer 1

dndjd