Abcd is a rectangle on a coordinate grid with side ab parallel to side cd and side bc parallel to side ad. if the slope of side ab is 2/7, what is the slope of side bc?

Step-by-step explanation:

ABCD is a rectangle.

AB CD

BC AD.

We know that and , by definition of rectangle.

Additionally, , by condition of perpendicularity.

Replacing, we have

Therefore, the slope of BC is -7/2.

d

step-by-step explanation:

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