You would look at number after the thousandths place to go up or down 72,000.
Answer:
36:39
= 36/39 (divide by 3)
= 12/13
= <u>12:13 (option C)</u>
For the 51-deg angle, y is the opposite leg, and 12 is the hypotenuse.
The trig ratio that relates the opposite leg and the hypotenuse is the sine.
sin A = opp/hyp
sin 51 deg = y/12
y = 12 * sin 51 deg
y = 9.3
