Give the two functions below, what is the value of f(3) + g(5)? f ( x ) = 40 ( 0.4 )^x g ( x ) = 10 x + 6

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

That they are numbers and related to each other.

For the first question the answer is a, for the second c, for the third d, for the 4th b, for the 5th a