# Get help with equations, expressions, and inequalities

Recent questions in Equation, expression, and inequalitie
Equation, expression, and inequalitie

### If $$\displaystyle{P}{\left({0}{<}{z}{<}{k}\right)}={.3212},$$ find and solve k.

Equation, expression, and inequalitie

### Solve this equation $$\displaystyle\frac{{{2}{x}}}{{{x}+{2}}}={x}–{1}$$

Equation, expression, and inequalitie

### Identify, whether $$\displaystyle-\frac{{1}}{{2}}{x}{<}{7},{x}{>}{14}$$ are equivalent inequalities or not equivalent ones?

Equation, expression, and inequalitie

### Classify as an equation, an inequality, or an expression. $$\displaystyle{7}{x}–{5}{x}{>}-{4}{x}$$

Equation, expression, and inequalitie

### Solve the equation $$\displaystyle{x}^{{3}}–{5}{x}^{{2}}+{2}{x}+{8}={0}$$ given that -1 is a zero of $$\displaystyle{f{{\left({x}\right)}}}={x}^{{3}}–{5}{x}^{{2}}+{2}{x}+{8}$$

Equation, expression, and inequalitie

### Table shows the number of cellular phone subscribers in the United States and their average monthly bill in the years from 2000 to 2010. $$\begin{matrix} \text{Year} & \text{Subscribers} & \text{Average Local}\\ \text{ } & \text{(millions)} & \text{Monthly Bill ()}\\ \text{2000} & \text{109.5} & \text{45.27}\\ \text{2001} & \text{128.4} & \text{47.37}\\ \text{2002} & \text{140.8} & \text{48.40}\\ \text{2003} & \text{158.7} & \text{49.91}\\ \text{2004} & \text{182.1} & \text{50.64}\\ \text{2005} & \text{207.9} & \text{49.98}\\ \text{2006} & \text{233.0} & \text{50.56}\\ \text{2007} & \text{255.4} & \text{49.79}\\ \text{2008} & \text{262.7} & \text{50.07}\\ \text{2009} & \text{276.6} & \text{48.16}\\ \text{2010} & \text{300.5} & \text{47.21}\\ \end{matrix}$$ In 1995 There were 33.8 million subscribers with an average local monthly bill of $51.00. Add these points to the scatter plots. Do the 1995 points match well with the trends in the rest of the data? Equation, expression, and inequalitie ANSWERED asked 2021-08-15 ### Classify whether $$\displaystyle\frac{{3}}{{5}}{a}+\frac{{1}}{{5}}={2},{3}{a}+{1}={10}$$ are equivalent equations or not equivalent ones? Equation, expression, and inequalitie ANSWERED asked 2021-08-15 ### Solve $$\displaystyle\frac{{2}}{{3}}{\left({4}{x}-{5}\right)}={8}$$ by using the division property of equality Equation, expression, and inequalitie ANSWERED asked 2021-08-14 ### Solve inequality, please: $$\displaystyle\frac{{{3}–{x}}}{{{x}+{5}}}\ge{1}$$ Equation, expression, and inequalitie ANSWERED asked 2021-08-14 ### Reduce the rational expression to the lowest terms: $$\displaystyle\frac{{{x}^{{2}}+{36}}}{{{6}{x}+{36}}}$$ State any real numbers that should be excluded from the domain. Equation, expression, and inequalitie ANSWERED asked 2021-08-14 ### A pair of parametric equations is given. Find a rectangular-coordinate equation for the curve by eliminating the parameter. $$\displaystyle{x}={2}{\cos{{t}}},{y}={3}{\sin{{t}}},{0}≤{t}≤{2}π$$ Equation, expression, and inequalitie ANSWERED asked 2021-08-14 ### Table shows the number of cellular phone subscribers in the United States and their average monthly bill in the years from 2000 to 2010. $$\begin{matrix}\text{Year}&\text{Subscribers}&\text{Average Local}\\ \text{ }\ &\text{(millions)}&\text{Monthly Bill (\)}\\ \text{2000}&\text{109.5}&\text{45.27}\\ \text{2001}&\text{128.4}&\text{47.37}\\ \text{2002}&\text{140.8}&\text{48.40}\\ \text{2003}&\text{158.7}&\text{49.91}\\ \text{2004}&\text{182.1}&\text{50.64}\\ \text{2005}&\text{207.9}&\text{49.98}\\ \text{2006}&\text{233.0}&\text{50.56}\\ \text{2007}&\text{255.4}&\text{49.79}\\ \text{2008}&\text{262.7}&\text{50.07}\\ \text{2009}&\text{276.6}&\text{48.16}\\ \text{2010}&\text{300.5}&\text{47.21}\\ \end{matrix}$$ One of the scatter plots clearly suggests a linear model. Use the points at t = 10 and t = 20 to find a model in the form y=mx+b.y=mx+b. Equation, expression, and inequalitie ANSWERED asked 2021-08-13 ### Identify, whether $$\displaystyle{x}–{7}{>}-{2}{\quad\text{and}\quad}{x}{>}{5}$$ are equivalent inequalities or not equivalent? Equation, expression, and inequalitie ANSWERED asked 2021-08-13 ### Classify the following math problem: $$\displaystyle-\frac{{1}}{{3}}{t}\le-{5},{t}\ge{15}$$ are equivalent inequalities or not equivalent ones? Equation, expression, and inequalitie ANSWERED asked 2021-08-13 ### The sum of the coefficients of (3x−2y)10 is (A)1, (B),1024,(C)58.025,(D)59.049,(E)9,765,625. Equation, expression, and inequalitie ANSWERED asked 2021-08-13 ### Simplify the expression. Assume that the variables in the denominators are nonzero. $$\displaystyle\frac{{\left({x}^{{-{{3}}}}{y}^{{2}}\right)}^{{-{{4}}}}}{{\left({y}^{{6}}{x}^{{-{{4}}}}\right)}^{{-{{2}}}}}$$ Equation, expression, and inequalitie ANSWERED asked 2021-08-13 ### A store advertised a gaming console for$259.99 and a TV for \$89.99. What is the total price if the sales tax rate is 6 percent?

Equation, expression, and inequalitie

### Solve inequality: $$\displaystyle-\frac{{1}}{{2}}\le-\frac{{1}}{{4}}{x}–{5}{<}{2}$$

Equation, expression, and inequalitie