Chapter 1: Problem 67
Determine whether each statement makes sense or does not make sense, and explain your reasoning. The rectangular coordinate system provides a geometric picture of what an equation in two variables looks like.
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Chapter 1: Problem 67
Determine whether each statement makes sense or does not make sense, and explain your reasoning. The rectangular coordinate system provides a geometric picture of what an equation in two variables looks like.
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Use interval notation to express solution sets and graph each solution set on a number line. Solve linear inequality. \(8 x+3>3(2 x+1)+x+5\)
Use interval notation to express solution sets and graph each solution set on a number line. Solve linear inequality. \(7-\frac{4}{5} x<\frac{3}{5}\)
Solve absolute value inequality. \(4<|2-x|\)
The formula $$1-\frac{1}{4^{x}+26}$$ models the percentage of U.S. households with an interfaith marriage, \(I, x\) years after \(1988 .\) The formula $$N-\frac{1}{4} x+6$$ models the percentage of U.S households in which a person of faith is married to someone with no religion, \(N, x\) years after \(\overline{l 9} 88\). Use these models to solve. a. In which years will more than \(33 \%\) of U.S households have an interfaith marriage? b. In which years will more than \(14 \%\) of U.S. households have a person of faith married to someone with no religion? c. Based on your answers to parts (a) and (b), in which years will more than \(33 \%\) of houscholds have an interfaith marriage and more than \(14 \%\) have a faith/no religion marriage? d. Based on your answers to parts (a) and (b), in which years will more than \(33 \%\) of households have an interfaith marriage or more than \(14 \%\) have a faith/no religion marriage?
Here are two sets of ordered pairs: $$ \begin{array}{l} \operatorname{set} 1:\\{(1,5),(2,5)\\} \\ \text { set } 2:\\{(5,1),(5,2)\\} \end{array} $$ In which set is each \(x\) -coordinate paired with only one \(y\) -coordinate?
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