7. Calcula el resuitado en forma de fracción. \( \begin{array}{ll}\text { a) } 4,7-2,83 \cdot 1,5 & \text { c) } 12,6 \hat{4}+4,2: 0,6 \\ \text { b) }(5,724+1,9): 0,54 & \text { d) } 15,75-(1,86-0,2) \cdot 3,8\end{array} \)

Wandle \( 3 m^{2} \) in \( d m^{2} u m \)

Use the slope-intercept form to graph the equation \( y=-7 x+1 \). Use the graphing tool to graph the line. Use the slope and \( y \)-intercept when drawing the line. \( \begin{array}{c}\text { Click to } \\ \text { enlarge } \\ \text { graph }\end{array} \)

QUESTION 3 3.1 The general term of: \( 5 ; 12 ; 29 ; 48 ; 77 ; \ldots \) is \( T_{n}=3 n^{2}+2 \) Is this statement true or false? Motivate your answer. 3.2 The first term of a linear pattern is 92 and the constant different is -4 3.2 1 Write down the value of the \( T_{2} \) and \( T_{3} \) of this number pattern. 3.2.2 Determine an expression for \( T_{n} \) 3.2.3 Determine the value of \( T_{18} \) 3.3 The \( n^{\text {th }} \) term of a number pattern is as follows. - \( T_{n}=-5 n-4 \) if the \( n \) is an even number. - \( T_{n}=-n^{2}+6 \) if \( n \) is an odd number. 3.3.1 Determine the value of: \( T_{6}+T_{7} \) 3.3.2 Determine the value of k if \( T_{k}=-219 \)

TAREA 6 - ESPACIOS VECTORIALES 1.- Realiza las operaciones con matrices si \( A=\begin{array}{cccccccc}1 & 2 & 4 \\ 6 & 8 & 0 & \& & B= & 0 & 10 & 4 \\ 2 & 7 & 5 \& C= & 8 & 4 & 3 \\ -1 & 5 & 7 & 45 & 7 \\ 12 & 7 & 9 & 3 & 7 & 8\end{array} \) a) \( \mathrm{A}^{*} \mathrm{~B} \), b) \( \left.\mathrm{B}^{*} \mathrm{~A}, \mathrm{c}\right)(\mathrm{A}+\mathrm{B})^{3,} \) d) \( \mathrm{A}^{2+3} \mathrm{~A}^{*} \mathrm{~B}+\mathrm{B}^{2} \) e) \( \mathrm{C}^{2} \) f) \( \left.\mathrm{C}^{2} * \mathrm{~B}, \mathrm{~g}\right) \mathrm{B}+\mathrm{A}+\mathrm{C} \), h) \( \mathrm{C}^{3}+\mathrm{A}^{2}+\mathrm{B} \), i) \( \mathrm{A}^{*} \mathrm{~B}+\mathrm{B}^{*} \mathrm{C}+\mathrm{C}^{*} \mathrm{~B}+\mathrm{B}^{*} \mathrm{~A} \)

\( \left. \begin{array} { c } { 6 } \\ { 6 x y ^ { 2 } + 5 x ^ { 5 } } \\ { 8 x ^ { 7 } - 2 y ^ { 5 } } \\ { 6 x } \\ { - x ^ { 3 } + 2 x ^ { 2 } y ^ { 3 } - y ^ { 6 } } \\ { y - x ^ { 2 } z - x y ^ { 4 } } \end{array} \right. \)