In a bag there are pink buttons, yellow buttons and blue buttons. There are five times as many pink buttons as yellow buttons.
number of yellow buttons : number of blue buttons = 4:7
One button is selected at random.
Work out the probability that the button is either pink or blue.
Give your answer as a fraction in its simplest form.

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

its a i did it myself

step-by-step explanation:

the answer is 0.8in^2

hope you get it down chief.