Math Prep 2 Notebook 2025.pdf File | C:/Users/pc/Desktop/الكا/Math\%20Prep\%202\%20Notebook\%202025.pdf Translate pexels Online Video, Logo... Google Drive - EFB WebPortal مصر الوهمية WhatsApp ر Draw (I) aあ Ask Copilot 65 of 138 Supervision of Mathematics Answer the following questions : 1 Choose the correct answer : (1) The S.S. of \( (x+2)^{3}=125 \) in \( \mathbb{E} \) is (a) \( \{3\} \) (b) \( \{5\} \) (c) \( \{7\} \) (d) \( \varnothing \) 2 If the order of the median of a set of values is the fourth, then the number of the values is \( \qquad \) (a) 3 (b) 5 (c) 7 (d) 9 3) If A is \( (2,7) \) and B is \( (5,-2) \), then the slope of \( \overleftrightarrow{\mathrm{AB}}= \) \( \qquad \) (a) -2 (b) 2 (c) -3 (d) 3 (4) If \( 5 x=35 \), then \( 2 x+1= \) \( \qquad \) (a) 7 (b) 15 (c) 8 (d) 71 (5) The multiplicative inverse of \( \frac{\sqrt{3}}{6} \) is \( \qquad \) (a) \( -\frac{\sqrt{3}}{6} \) (b) \( 6 \sqrt{3} \) (c) \( 2 \sqrt{3} \) (d) \( -2 \sqrt{3} \) 66

3. Factorize os seguintes polinómios: a) \( 2 x+a x+4 y+2 a y \) b) \( x^{3}-4 x \) \( \begin{array}{l}\text { 4. Sobre a equação do } 2^{\circ} \text { grau, determine a solução da seguinte eq } \\ \left.-2 x^{2}+3 x+5=0-1\right) \\ \text { 5. Encontre a solução do seguinte sistema de } 2 \text { equações: } \\ \qquad\left\{\begin{array}{c}2 x+4 y=11 \\ 5 x-15 y=-20\end{array}\right.\end{array} \)

लगाजनुहोस्ट । If \( \left[\begin{array}{cc}8 & -2 \\ 1 & 4\end{array}\right] A=2\left[\begin{array}{l}6 \\ 5\end{array}\right] \) then find matrix \( A \).

15. Determine whether the function \( f: \mathbf{Z} \times \mathbf{Z} \rightarrow \mathbf{Z} \) is onto if a) \( f(m, n)=m+n \). b) \( f(m, n)=m^{2}+n^{2} \). c) \( f(m, n)=m \). d) \( f(m, n)=|n| \). e) \( f(m, n)=m-n \).

3) The sign of function \( f(X)=7-X \) is not negative in .............. \( \begin{array}{lll}\text { (a) }]-\infty, 7[ & \text { (b) }[0,7[ & \text { (c) }]-\infty, 7]\end{array} \)

1. Dado o Polinómio \( P(x)=x^{3}-2 x^{2}+10 \), determine: a) O grau do polinómio \( \begin{array}{l}\text { b) O coeficiente principal } \\ \text { b) O Coeficiente independente. } \\ \text { (1 valor) } \\ \text { d) } x=-2 \text { é uma raíz do polinómio? } \\ \text { (1 valor) } \\ \text { 2. Dado os polinómios } P(x)=x^{2}+x-6 \text {, determine: } \\ \text { a) O Dobro da quinta parte de } \mathrm{P}(\mathrm{x}) \\ \text { b) } P(3)\end{array} \)