PROVA DIAGNOSTICA DI FISICA a) Un aereo percorre 80 km verso nord, poi vira improvvisamente percorrendo altri 60 km verso est. Quanto vale lo spostamento risultante?

5. ¿En cuál de los siguientes procodimiontos se resuolven sin error las siguientes operaciones? \[ \begin{array}{l}\frac{(8)(-7)(5)}{(-4)(-2)(-3)}= \\ \text { A) } \frac{(8)(-7)(6)}{(-4)(-2)(-3)}=\frac{-336}{-24}=-14 \\ \text { B) } \frac{(8)(-7)(6)}{(-4)(-2)(-3)}=\frac{336}{24}=14 \\ \text { C) } \frac{(6)(-7)(6)}{(-4)(-2)(-3)}=\frac{-336}{24}=-14 \\ \text { D) } \frac{(8)(-7)(6)}{(-4)(-2)(-3)}=\frac{-336}{-24}=14\end{array} \]

51. \( x \in Z \) \( \left(x^{5}+x^{4}+x\right)=M \), \( M \) çift sayı ise aşağıdakilerden hangisi tek sayıdır? If \( M \) is even, which one of the followings is odd? \( \begin{array}{lll}\text { A) } x^{5} & \text { B) } x^{4}+x & \text { C) } x^{5}-x\end{array} \)

\( m: 8 \) corta y \( m-7 \)

Factorise the following expressions. \( \begin{array}{lll}\text { (i) } p^{2}+6 p+8 & \text { (ii) } q^{2}-10 q+21 & \text { (iii) } p^{2}+6 p-16\end{array} \)

simplify each expression using exponential notation. \( \begin{array}{ll}\text { A. }\left(\frac{5 k^{3}}{j^{2}}\right)^{7} & \text { B. }\left(12^{2} a^{4} b^{8} c^{3}\right)\end{array} \)