Answer:
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Answer:
C. R is not equal to -10
Step-by-step explanation:
Restrictions usually deal with preventing the case of dividing by 0. In this case, you'll look at the denominator.
If R = -10 and 10 was added to it, then the denominator would become 0.
Therefore, the expression would be messed up.
The answer would be 54 since there is only 180 degrees in a triangle so you subtract 90 and 36 from 180. You get 54
I forgot the name, but there is a theorem that states that those two angles are equal. So if you do 94=5x+4 , you can solve that.
94=5x+4.
Subtract 4 from both sides
90=5x
Divide both sides by 5
18=x
Hope this helps :)