Answer:
4th option.
Step-by-step explanation:
PQ is not congruent to QR, instead it is PQ is perpendicular to QR.
Answer:
b) x+6
Step-by-step explanation:
½ × 2 = 1
½ × 3 = 3/2
½ × 4 = 2
½ × 5 = 5/2
Answer:
495
Step-by-step explanation:
From 12, choose 4:
₁₂C₄ = 12! / (4! (12−4)!)
₁₂C₄ = 12! / (4! 8!)
₁₂C₄ = 495