An elevator descends into a mine shaft at the rate of 5 m/min. If the descend starts from 15m above the ground, by how long will
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Answer: The mathematical expectation of Option A is 2.25. The mathematical expectation of Option B is 2.75. Option B offers a greater likelihood of advancing to the finish line.
Step-by-step explanation: I took the test.
Answer:
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors.
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