Solve the Rational Inequality $P = t ^ { 2 } - 30 t + 200$

question 85

Multiple Choice

Solve the rational inequality. Write the solution set in interval notation.
-The profit made when t units are sold, t > 0, is given by $P = t ^ { 2 } - 30 t + 200$ Determine the number of units to be sold in order for P = 0 (the break- even point) .

• A) t = -10 or t = -20
• B) t = 30
• C) t > 10
• D) t = 10 or t = 20

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Definitions:

Regression Sum Of Squares

The portion of the total variance in a dependent variable that is explained by the regression model, indicating the model's explanatory power.

Coefficient Of Multiple Determination

A statistical measure that represents the proportion of the variance in the dependent variable that is predictable from the independent variables.

Multiple-regression ANOVA

A statistical technique that combines aspects of multiple linear regression analysis and analysis of variance (ANOVA) to understand the relationship between several independent variables and a dependent variable.

Regression Coefficients

Values that estimate the relationship between a dependent variable and one or more independent variables in regression analysis.