Answer:
see explanation
Step-by-step explanation:
a and b lie on the straight line CA, hence
and b sum to 180°, that is supplementary angles
Answer:
C
Step-by-step explanation:
(-6)-(+8)-(-12)
-6-8+12
-14+12
-2
1/3+1/4=7/12 because changing the denominators to make them common gives you 4/12+3/12=7/12
Step-by-step explanation:
6x2 - x + 3 - (-5x2 + 10x - 1)
6x2 - x + 3 + 5x2 - 10x + 1
Solving like terms
11x2 - 11x + 4
