A rectangular turf of size 20 feet by 30 feet is surrounded by a flower bed of uniform width all around. The total area of the turf and the flower bed is 1200 sq. ft. What is the width of the
flower bed? Show your work algebraically.(4 points)
2) You are running a concession stand at a basketball game. You are selling hot dogs and

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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

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step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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