de testes. Os dois primeiros veiculos, A e B, num percurso de 100 km , consumiram 12 Le 14 L de combustivel, respectivamente. terceiro veiculo, C, exatamente com 1 L de combustivel, ercorreu 8 km . No teste, o(s) veiculo(s)

The sum of two numbers is 67 . The difference of the two numbers is 13. What are the two numbers. Let \( x \) be the larger number and \( y \) be the smaller number. Write an equation that expresses the information in the sentence "The sum of two numbers is 67. ." Write an equation that expresses the information in the sentence "The difference of the two numbers is 13.- Solve the system you have written above. The larger number, \( x \) is

a) \( \int_{4}^{8}\left(20 x^{3}-6 x^{2}+10 x-8\right) d x= \)

3. Determine the primary trigonometric ratios for each angle. \( \begin{array}{ll}\text { a) }-\frac{\pi}{2} & \text { c) } \frac{7 \pi}{4} \\ \text { b) }-\pi & \text { d) }-\frac{\pi}{6}\end{array} \)

\( \begin{array}{ll}\text { g) }\end{array} f(x)=\log (x+2) \quad \) en \( x=-2 \quad \) h) \( \quad f(x)=\frac{x-9}{\sqrt{x}-3} \quad \) en \( \quad x=9 \)

\( \left. \begin{array} { c } { ( m + 6 ) ^ { 3 } } \\ { ( 3 a - 4 ) ^ { 3 } } \\ { ( x - 2 ) ^ { 3 } } \end{array} \right. \)