What is the length of BC?
O 9 units
11 units
O 15 units
O 16 units
11

(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

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation:

1k

step-by-step explanation:

-6k+7k

(-6+7)k

1k

6-3=3

3*3=9

9+12=21

21/3=7

7*8=56

56 is your answer