Answer:
6.13
Explanation:
This diagram shown is a right triangle;
USing the SOH CAH TOA idenity
Adjacent = x
Hypotenuse = 8
Angle of elevation = 40 degrees
cos theta = adj/hyp
cos 40 = x/8
x = 8cos40
x = 6.13
Hence the value of x to the nearest hundredth is 6.13