Un prisma retto ha per base un triangolo rettangolo di area \( 600 \mathrm{~cm}^{2} \) e un cateto è i \( \frac{4}{3} \) dell'altro. sapendo che l'altezza è la metà del cateto minore, calcola l'area della superficie totale e il volume. \[ \left[3000 \mathrm{~cm}^{2} ; 9000 \mathrm{~cm}^{3}\right] \]

[6.4] En los ejercicios 61-70 resuelve cada ecuación. \( \begin{array}{llll}\text { 61. } \frac{3}{4}=\frac{12}{x} & \text { 62. } \frac{x}{1.5}=\frac{x-4}{4.5} & \text { 63. } \frac{3 x+4}{5}=\frac{2 x-8}{3} & \text { 64. } \frac{x}{4.8}+\frac{x}{2}=1.7 \\ \text { 65. } \frac{2}{y}+\frac{1}{5}=\frac{3}{y} & \text { 66. } \frac{2}{x+4}-\frac{3}{x-4}=\frac{-11}{x^{2}-16} & \text { 67. } \frac{x}{x^{2}-9}+\frac{2}{x+3}=\frac{4}{x-3} \\ \text { 68. } \frac{7}{x^{2}-5}+\frac{3}{x+5}=\frac{4}{x-5} & \text { 69. } \frac{x-3}{x-2}+\frac{x+1}{x+3}=\frac{2 x^{2}+x+1}{x^{2}+x-6} & \text { 70. } \frac{x+1}{x+3}+\frac{x+2}{x-4}=\frac{2 x^{2}-18}{x^{2}-x-12}\end{array} \)

\begin{tabular}{l} Exercise 2.5 \\ \( \begin{array}{lll}\text { 1. Express each of the following numbers as prime factorization form. } \\ \begin{array}{lll}\text { a. } 21 & \text { b. } 70 & \text { c. } 105\end{array} \\ \begin{array}{lll}\text { d. } 252 & \text { e. } 360 & \text { f. } 1,848\end{array} \\ \text { 2. } 180 \text { can be written as } 2^{a} \times 3^{b} \times 5^{c} \text {. Then, find the value of } a, b \text { and } c \text {. } \\ \text { 3. Find the four prime numbers whose product is } 462 .\end{array} \) \\ \hline\end{tabular}

\( \begin{array}{lllll}7 / 8 & \text { A) } 21 / 24 & \text { B) } 1 / 2 & \text { C) } 1 / 2 & \text { D) } 2 / 1 \\ 1 / 2 & \text { A) } 7 / 20 & \text { B) } 2 / 1 & \text { C) } 8 / 16 & \text { D) } 3 / 4\end{array} \)

Hallar la ecuación de la circunferencia con centro en el punto (7,1)y radior \( =2 \) a. \( X^{2}+Y^{2}-7 X-2 Y+44=0 \) b. \( X^{2}+Y^{2}-14 X-2 Y+4=0 \) c. \( X^{2}+Y^{2}-14 X-2 Y+46=0 \)

uchun 150 masala berildi. O'quvchining yechgan masalalari yechmaganiga qaraganda 4 marta ortiq bo'lsa, u nechta masala yechgan?