SexyTriangleFun

The formula for cosine is this, cos= The adjacent side over the hypotenuse side. or cos=a/h

Cos= Adjacent side over the Hypotenuse 

Sin= Opposite over the Hypotenuse 

Tan= Opposite over the Adjacent  

cos=a/h 

sin=o/h 

tan=o/a

I think it's just 20

100*2-300+100+10+15-23=2 (1+1=2) 

2+5=x 

2+5=7 

7=x 

4-2=2  

2-0.42=1.58 

Therefore the answer is 1.58

Think of it like this, 5.00/2=2.50 ok then 7.50/3=2.50 then 12.50/5=2.50 then 20.00/8=2.50 so the answer is c=2.50n.

Just divide the amount of money by the amount of cards, and that should get you your answer. c=2.50n because it is 2.50  (c) for ever greeting card (n) 

I assume your asking what 14+2 is, and it equals 16. 

³sqrt(8/2) Should equal 1.58740105151968 OR 1.59

All you need to do is put Tan^-1(9/5) into your calculator. Which equals 60.94539590092 or just 60.95