Question

PLEASE HELP ME ASAP

Answer 1

20.04 units

Explanation:

The diagram shows right triangle ABC. Use the definition of the cosine:

`\cos \angle C=\frac{\text{Adjacent leg}}{\text{Hypotenuse}}\\ \\\cos \angle C=(BC)/(AC)\\ \\\cos 51^(\circ)=(BC)/(27)\\ \\BC=27\cdot \cos 51^(\circ)\\ \\BC\approx 20.04\ units`