Answer:
∠ ACD = 130°
Step-by-step explanation:
∠ ABC = 180° - 120° = 60° ( adjacent angles on a straight line )
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ ACD is an exterior angle of the triangle , then
∠ ACD = 70° + 60° = 130°
Answer:m<2= 160 degrees m<3=20 degrees
Step-by-step explanation:the angles have to equal 360 in all and the side lengths are all the same
Answer:
<h2>X=4</h2>
Step-by-step explanation:
x=1/2=2/4
y=5/4
y=2.5x
10/2.5=4
so x=4
Mathwords: Discriminant of a Quadratic. The number D = b2<span> – 4ac determined from the coefficients of the equation ax</span>2<span> + </span>bx<span> + c = 0. The discriminant reveals what type of roots the equation has. Note: b</span>2<span> – 4ac comes from the quadratic formula.</span>
Associative property of mulipication, the ability to move parenthasees with mltipication or additon
