Answer:
Step-by-step explanation:
Ac²= AB²+ BC²
Ac²= 4²+15²= 16+225
Square both side
Ac = √241= 15.52cm
Answer:

Step-by-step explanation:
Slope Formula: 
Simply plug in 2 coordinates into the slope formula to find slope <em>m</em>:



Answer:
Step-by-step explanation:
i dont know man look it up