A two-kilometre \( (2 \mathrm{~km}) \) pler and a one-kilometre \( (1 \mathrm{~km}) \) pler extend perpendlcularly into the ocean with four kilometres \( (4 \mathrm{~km}) \) offshore between the two plers. A swimmer wishes to swim from the end of the longer pier to the end of the shorter pler with one rest stop on the beach. Assuming that the swimmer recalls that, in any right-angled triangle, Hypotenese Find the shortest possible length of the swim and the location of the rest stop (land distance from the longer pier).

1. Move the slider to choose a scale factor greater than 1. Where is point P'?

O circulo tom 8 m de diâmetro e as sementes de rosas que seráo compradas sâo vendidas em pacotes com uma quantidade suficiente para uma área de \( 1,8 \mathrm{~m} 2 \). Considerando que algumas sementes podem näo germinar, será comprado \( 15 \% \) a mals que a quantidade minima necessária. Assim, quantos pacotes de sementes deverào ser comprados? Considere \( \pi=3.1 \).

299. 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 di 9 cm . [ 41 cm\( ] \)

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.

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