Bonjour j'ai un dm de maths à rendre et je dois avouer que je ne comprends pas trop. Quelqu'un peut-il m'aider svp ? On précise que ABCD est un trapèze isocèle où (AB)//(CD) et on donne les mesures suivantes en cm : AB = 3,6 ; CD = 12,6 et BC = 7,5. 1) Refaire une figure à main levée et placer le point E sur [DC] tel que (BE) perpendiculaire à (EC). 2) Calculer EC et BE. 3) Faire une figure en vrai grandeur. 4) Calculer BD (on arrondira au dixième). 5) Le triangle BDC est-il rectangle ? Expliquer.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

i think its doubled. let me know

step-by-step explanation: