Estimate the answer by rounding each number to one nonzero digit first, then perform the actual calculation, In 2005 , there were 3.418 miltion square kilomelers of rainforest in a certain country. Each year, approximately 0.013 million square kilometer is lost to deforestation and development. By 2016 , how many square kilometers of rainforest remained? Estimate. Do not round the years, 2005 and 2016 . In 2016 , the area of rainforest will be about 2.9 million square kilometers. (Type a whole number or a decimal.) In 2016 , the area of rainforest will be \( \square \) million square kilometers. (Type a whole number or a decimal.)

23. El discrminante de una ocusción cuadratica permite determinar si la ecuación tiene 2 solucioners. 1 solución o no ti solución en los nümeros reales (R) Pror lo tanto si el discriminante es mayor que cern, la ecuación tiene: \( \begin{array}{ll}\text { a) dos soluciones reales } & \text { b) } 3 \text { soluciones en " } R \text { " } \\ \text { c) no tiene solucion en "R" } R & \text { d) una solución en " } R \text { " }\end{array} \)

Use properties of logarithms to expand the \[ \log \left[\frac{10 x^{5} \sqrt[3]{8-x}}{3(x+1)^{2}}\right] \] \( \log \left[\frac{10 x^{5} \sqrt[3]{8-x}}{3(x+1)^{2}}\right]=\square \)

(1) Explica paso a paso cómo puedes resolver el si- guiente sistema de ecuaciones por el método de igualación. \[ \left\{\begin{array}{l}x+7 y=8 \\ 3 x+4 y=5\end{array}\right. \]

Dado el espacio muestral \( S=\{, 2,3,4,5,6,7,8\} \) y los eventos \( A=\{4,8\} \) y \( B=\{3,5,8\} \), calcular la probabilidad condicional \( P(A \mid B) \). Realiza el diagrama de Venn.

Please do the following calculation based on two's complement numbers (only 4 -bit can be used to represent number) and show the details. (Your should include leading 0 s in your answers) \( (6)_{10}+(3)_{10}=( \)