3x^2-24x-21 would be your answer
C. The Triangle Inequality Theorem States that any two sides of a triangle must be greater than the third side. It cannot be A because 35+40= 75, which is not greater than 75. It cannot be B because 40+30= 70, which is not greater than 75. It cannot be D because 35+40= 75, which is not greater than 80. It is C because 40+30= 70, which is greater than 65.
Answer:
i believe it’s graph A
Step-by-step explanation:
All three sides always add up to 360 so add the given measures and subtract it from 360 and that would give you your answer.