-201+189=-12-201=-213+189=-24 . S the sign would be negative(-).
Number 29 would be y=-x +10
Recall that cosine is the reciprocal of secant, so is the same fraction, just upside-down.
Umm? What do you mean by this
The solution is the point where the two graphed lines cross each other.
The solution is (0,5)