Step-by-step explanation:
- Given:ABCD is a rectangle, AC and BD intersect at O
- To prove: ∆ABC and ∆BAD are congruent.
- Proof:
(a + 1)(a² + 2a + 1)
= a(a² + 2a + 1) + 1(a² + 2a + 1)
= a³ + 2a² + a + a² + 2a + 1
= a³ + 3a² + 3a + 1
Answer: b
I think she’ll have 1 left I DONT KNOW I did some work on my paper but I’m as confused as you
Answer:
60
Step-by-step explanation:
all angles in a triangle measures 180°
The two numbers are -6 and -20
-20 x -6 = 120
-20 + (-6) = -26