Answer: 12.9
Step-by-step explanation:
5.1 + 2 + 5.8 = 12.9
Answer: k^3=1
Step-by-step explanation:
Triangles have three sides. Of which, the angles inside add up to 180°. Now if two angles were 90° there would be no third angle. Meaning this object would just be an open shape.
Answer; is A -3n+24
Step-by-step explanation: