a. Draw nABC with obtuse /C and construct its orthocenter O. Th en fi nd the orthocenters of nABO, nACO, and nBCO. What did you discover? Explain why you get this result. b. Will your conjecture be true for any acute or right nABC? Explain your reasoning.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000