The value of a piece of jewelry bought new for $2,200 decreases 12% each year. use a graph to predict the value of the jewelry in 7 years.
a) ≈ $1021.69
b) ≈ $899.09
c) ≈ $1161.01
d) ≈ $791.20

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

x = 3 ± √(5+y)