In ΔGHI, the measure of ∠I=90°, the measure of ∠G=31°, and IG = 60 feet. Find the length of HI to the nearest tenth of a foot.

HI = 54.1 ft

Step-by-step explanation:

From the diagram, we can see that the length HI is the opposite as it faces the angle given

The side that measures 60 ft is the adjacent

GH represents the hypotenuse

Mathematically, the ratio of the opposite and the adjacent is the tan of an angle

Tan 31 = HI/60

HI = 60 * Tan 31

HI = 54.1 ft

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14