The diagram shows the contents of a jar of marbles. You select 2 marbles at random. One marble is drawn and returned. Then the second marble is drawn. What is the probability of selecting a blue marble and then a green marble? A.7/16
B.35/256
C.7/48
D.1/20

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step-by-step explanation:

(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

27 +27 or 27times 2=54

the diffrence is 0

i believe so, according to my "strange" way of figuring out weird math problems like this.