Chapter 7: Problem 32
Simplify each rational expression. If the rational expression cannot be simplified, so state. $$\frac{5 x-10}{x-2}$$
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Chapter 7: Problem 32
Simplify each rational expression. If the rational expression cannot be simplified, so state. $$\frac{5 x-10}{x-2}$$
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Use similar triangles to solve. A tree casts a shadow 12 feet long. At the same time, a vertical rod 8 feet high casts a shadow 6 feet long. How tall is the tree? (IMAGE CANNOT COPY)
The temperature, in degrees Fahrenheit, of a dessert placed in a freezer for \(t\) hours is modeled by $$ \frac{t+30}{t^{2}+4 t+1}-\frac{t-50}{t^{2}+4 t+1} $$ a. Express the temperature as a single rational expression. b. Use your rational expression from part (a) to find the temperature of the dessert, to the nearest hundredth of a degree, after 1 hour and after 2 hours.
Add or subtract as indicated. Simplify the result, if possible. $$\frac{7}{x}+4$$
Add or subtract as indicated. Simplify the result, if possible. $$\frac{3}{x}+\frac{4}{x-6}$$
Explain how to add rational expressions when denominators are the same. Give an example with your explanation.
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