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Solve the problem.
-An airplane is sighted at the same time by two ground observers who are 5 miles apart and both directly west of the airplane. They report the angles of elevation as and . How high is the airplane?
Risk-Free Return
The return on an investment that is guaranteed not to result in any loss, often associated with government securities.
M2 Measure
A broad measure of money supply that includes cash, checking deposits, savings deposits, money market securities, mutual funds, and other time deposits.
Risk-Free Return
The theoretical return on an investment with zero risk, often associated with government bonds or treasury bills.
Jensen Measure
A performance metric that evaluates a portfolio manager's ability to generate excess returns relative to a benchmark, adjusting for risk.
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