Solve for the Specified Variable $r m = t ^ { 2 } - m t$

question 69

Multiple Choice

Solve for the specified variable. Assume that all other variables are nonzero
- $r m = t ^ { 2 } - m t$ ; for $t$

• A) \(t = \frac { m \pm \sqrt { m ^ { 2 } - 4 m r } } { 4 }\)
• B) \(t = \frac { m \pm \sqrt { m ^ { 2 } + 4 m r } } { 2 m }\)
• C) \(t = \frac { m \pm \sqrt { m ^ { 2 } + 4 \mathrm { rm } } } { 2 }\)
• D) \(t = \sqrt { m r - m }\)

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