Answer:
The Answer Is 74. Your Welcome
It’s volume / designation
Step-by-step explanation:
50-50+15d =125-50
15d = 75
15d/15=75/15
d=5
Answer:
1.) 
2.)
3.)
4.) 
5.) 
6.) 
Step-by-step explanation:
Use the 30°-60°-90° formulas:
a.

b.

1.) Insert values for a:

Simplify:

Insert values for b:

Simplify:

2.) Insert values for a:

Simplify:

Insert values for b:

Simplify:

3.) Insert values for a:

Simplify:

Insert values for b:

Simplify:

4.)Insert values for a:

Simplify:

Insert values for b:

Simplify:

5.) Insert values for a:

Divide both sides by
and rationalize:

Flip:

Insert values for b:

Simplify:

6.) Insert values for a:

Divide both sides by
and rationalize:

Flip:

Insert values for b:

Simplify:

Finito.