Solve the Problem. -If the Formula R = -0.037t + 50.1 Can Be

question 135

Multiple Choice

Solve the problem.
-If the formula R = -0.037t + 50.1 can be used to predict the world record in the 400-meter dash t years after 1925, for what years will the world records be 48.1 seconds or less?

• A)1955 or after
• B)1980 or after
• C)1981 or after
• D)1979 or after

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