I'LL BECOME A FAN TO ANYONE WHO CAN HELP ME WITH THESE PROBLEMS: The picture below shows a right-triangle-shaped charging stand for a gaming system.

The side face of a charging stand is a right triangle labeled ABC. The measure of angle ACB is 90 degrees and the measure of angle ABC is 55 degrees. The height of the stand is 7 inches.

Which expression shows the length, BC, of the base of the stand?

Question

I'LL BECOME A FAN TO ANYONE WHO CAN HELP ME WITH THESE PROBLEMS: The picture below shows a right-triangle-shaped charging stand for a gaming system. 

The side face of a charging stand is a right triangle labeled ABC. The measure of angle ACB is 90 degrees and the measure of angle ABC is 55 degrees. The height of the stand is 7 inches. 

Which expression shows the length, BC, of the base of the stand?

anonymous · Answer

7 by cot 55 degrees

 7 cos 55°

 7 by sin 55 degrees

 7 cot 55°

anonymous · Answer

7cos55

anonymous · Answer

so sorry it is 7cot55

anonymous · Answer

yeah it is..7 / tan 55 = 7 cot 55

anonymous · Answer

Okay thank you! what about this one? 

If the sin 45° is 0.707, then the cos _____° is 0.707.

anonymous · Answer

45