Analise as afirmativas abaixo, e marque se afirmativa é Verdadeira ou Falsa. Verdadeira Falsa \( \begin{array}{l}\text { Aresta é cada } \\ \text { lado comum a } \\ \text { duas faces } \\ \text { quaisquer de } \\ \text { um poliedro. } \\ \text { Vértice é cada } \\ \text { ponto em que } \\ \text { se encontram } \\ \text { os lados das } \\ \text { faces de um } \\ \text { poliedro. }\end{array} \)

For the quadratic function \( f(x)=-x^{2}+6 x \), answer parts (a) through (c) What is the \( y \)-intercept? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Type an integer or a decimal.) Use the graphing is no y-intercept. A. (b) Determine the domain the function. The domain of \( f \) is ( \( -\infty, \infty \) ) (Type your answer in interval notation.) The range of \( f \) is (Type your answer in interval notation.)

Convert the fraction \(\frac{11}{20}\) to a decimal.

Graph the inequality \(3x - y \leq 9\) on a coordinate plane.

1) \( \frac{\left(a^{2} b^{7}\right)^{6}}{\left(a^{2} b^{3}\right)^{4}}= \) 2) \( \frac{x^{2} x^{9} y^{3} y^{9} z^{5} z^{4}}{z^{3} y^{12} x^{30}} \) 3) \( \left(\frac{\left(a^{3} b^{4}\right)^{3}}{a^{4} a^{3} b b^{5}}\right)\left(b^{2} a^{9}\right) \)

uál es el valor de la integral definida \( \int_{\sqrt{\frac{\pi}{4}}}^{\sqrt{\frac{\pi}{2}}} x \csc \left(x^{2}\right) \cot \left(x^{2}\right) d x \) ?