L'évocation d'un souvenir douloureux 1 > Quelles sont les causes de la perplexité d'Em- manuelle ? Quels types de phrases utilise-t-elle pour l'exprimer (lignes 7 à 9 )? 2 > Quels sentiments succiespits Emmanuelle éprouve-t-elle au cours de cette soirée? Justifiez vos

a) \( \frac{x+\frac{1}{5}}{0, \hat{3}}=\frac{0,6}{3^{-2}} \)

05) Simplifique as frações algébricas: (a) \( \left(16 x^{2}\right):\left(-4 x^{2}\right) \) (b) \( \left(36 x y^{2}\right):(-6 x y) \) (c) \( (-35 a):(+7 a) \) (d) \( \left(+3 a b^{2}\right):\left(-\frac{10}{5}\right) \) (e) \( \left(-\frac{4}{5} x^{2} y\right):\left(+\frac{4}{3} x^{2} y\right) \)

Outside temperature over a day can be modelled using a sine or cosine function. Suppose you know the high temperature for the day is 62 degrees and the low temperature of 42 degrees occurs at 7 AM. Assuming \( t \) is the number of hours since midnight, find an equation for the temperature, \( D \), in terms of \( t \). \( D(t)= \)

Question(5): Find the conjugate of the number: \( \frac{1}{\sqrt{5}-2} \)

c. \( y=7.5 x+15.5 \)