Answer:
Simplified: -4u? + 5u^2 - 5u - 3
Step-by-step explanation:
2/20 aka 1/10- hope this helped!
Step-by-step explanation:
m<DAC is the exterior angle of the right angle triangle, where m<ACB and m<ABC are the interior angles of the triangle opposite to the exterior angle
Sum of the opposite interior angles is equal to the exterior angle
m<ACB+ m<ABC=m<DAC
a°+90°= 119°
a°=119-90°
a°=29°