Karan needs to choose between two gym plans. he can either pay a $150 joining fee and a $10 monthly fee, or he can pay a $50 joining fee and a $300 monthly fee on what month will the cumulative costs of the plans be equal, and what will those total cost be?

Solution:

Let the cumulative costs of the plans will be equal after x months.

Then we can write

Hence after 10/29th Month cost will be equal.

and that cost$

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

the answer is (-4,-4)

hope this ! : d