Answer:
-5n
Step-by-step explanation:
We are asked in the problem to solve for x in the expression tan(x+π)+2sin(x+π) = 0. tan theta is equal to sin theta over cos theta. Hence, the expression results to tan (x+π) = sin (x+π) / cos (x+π) = -2sin (x+π). Thus, 1/cos (x+π) = -2. cos (x+π) = -1/2, cosine becomes negative in the third and fourth quadrants. cosine is 1/2 when the terminal angle is pi/3. x is equal to pi/3 then and 5 pi/6.
Part A: 1. X=$5-10%x
2. $5-5%+5%
Part B: 90%-$5x
part c: Part B would save you more money, for example, if you were paying $25 then if you took off 10% of that that would equal $22.5. Then you subtract five dollars and the answer is 17.5 dollars, which if you do it the other way around it would equal $18.
It’s obtuse as it’s bigger that 180