Which two of the following expressions are opposite of \tan(\theta)tan(θ)tangent, left parenthesis, theta, right parenthesis? choose 2 answers:.

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Math i have no idea how to do a and b