Date le rette \( r:\left\{\begin{array}{l}2 x+y+3 z=1 \\ x+y+2 z=-3\end{array}\right. \) \( s:\left\{\begin{array}{l}x=t+2 \\ y=t+1 \quad \text { dire se: } \\ z=-t-3\end{array}\right. \) Answer \( \begin{array}{ll}\text { a. sono parallele } \\ \text { b. sono incidenti }\end{array} \) c. sono sghembe

6.1 A man places a 5 m ladder to reach a point of x m high on the wall. The distance from of the wall to the foot of the latter is 3 m . Calculate the height of the wall.

1.2 Co-interior angles are A. Obtuse B. Supplementary C. Complementary D. \( 180^{\circ} \)

Le basi e il lato obliquo di un trapezio isoscele misurano \( 39 \mathrm{~cm}, 21 \mathrm{~cm} \) e 15 cm . Calcola la diagonale di un rettangolo equivalente al tra pezio sapendo che ha una dimensione cm .

If a line has a slope of zero, what can be inferred about its equation and graphical representation?

If the height of a cylinder is doubled while keeping the radius constant, how does that affect its volume?