50°
The quadrilateral ABCD shown is a
Break the quadrilateral into triangles by drawing a
diagonal, AC. How many triangles does the
quadrilateral break down into? | Y
The sum of the measures of the interior angles of this
quadrilateral is vi

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

step-by-step explanation:

75

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116