In figures I and II above, two stacks of identical carpenter’s sawhorses are shown, with
heights of 92 and 60 inches, respectively. The height, in inches, of a stack of k sawhorses
is given by the function h(k) = 16k + 12, where k is a positive integer and k ≥ 1. The
number 12 in the function represents which of the dimensions shown in Figure III ?
A) a, the height of one sawhorse
B) b, the distance from the bottom of one sawhorse to the bottom of the next highest
sawhorse
C) c, the distance from the top of one sawhorse to the bottom of the next highest
sawhorse
D) d, the width of a sawhorse at the top
23.
In the figure above, if sin a = cos b, which of the following is closest to the length of DF ?
A) 5.6
B) 8.7
C) 11.2
D) 12
