I need help on this one please help! (listing BRAINLIST and giving points) ​:D​

sin x = a/b

cos x = c/b

tan x = a/c

sin x = a/b

cos x = c/b

tan x = a/c

Step-by-step explanation:

We know,

So, in this right triangle, the opposite is a

                                          "   hypotenuse is b

                                          "   adjacent is c

So, sin x = a/b

      cos x = c/b

      tan x = a/c          

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1