49 On considère trois droites : 1 13
dy: y = 2x+1; dz: y = -x + 7 et dz: y = 5x+
+
3
1. a. Tracer dans un repère les trois droites.
b. Vérifier graphiquement que les droites sont
concourantes en un point A dont on conjecturera les
coordonnées.
2. Démontrer la conjecture de la question 1. b.​

4. find the geometric mean of 4 and 12. 24 8

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?