1. In the diagram below, mzBDC = 100° MZA = 50°, and m2DBC = 30°
B
A
с
Which statement is true?
(1) AABD is obtuse
(2) AABC is isosceles
(3) LABD = 80°
(4) AABD is scalene

x coordinate is none

step-by-step explanation:

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110