SOLUTION: Hi. im Michelle. im in highschool. I take math core. our teacher gave us holiday homework and I was wondering if you could maybe help me. My question is : Solve for x where

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Question 1028729: Hi. im Michelle. im in highschool. I take math core. our teacher gave us holiday homework and I was wondering if you could maybe help me.
My question is :
Solve for x where x = < 90 degrees.

Thank you so much to whose who try to help me. I really would love your help. You are amazing and don't let anyone tell you anything different.
~Michelle1110
Found 2 solutions by josmiceli, Natolino1983:
Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
( using degrees )
Use the inverse cot function:

I can look up the left side on my calculator

( x is less than 90 degrees. Hope this is what
they are looking for )
--------------
check answer:

close enough

Answer by Natolino1983(23) (Show Source):
You can put this solution on YOUR website!
First remember that cot(y) =cos(y)/sen(y), so y may be betweeen (0,90) or (180,270)
Arc cot (2,4) = 22,62 degrees or 202,62 degrees (first and thirds cuadrant)
2x + 25 =22,62 or 2x + 25 = 202,62 where x > =0 and x<=90
X =-1,19 or x =88,81 where x>=0 and x<=90
So solution is x=88,81 degrees.
Obs: calculator gives only 22,62. So the other one: 202,62 degrees is 180 + 22,62)