Un cartographe doit déterminer la largeur CD d’une rivière Voici les relevés qu’il a effectués sur le terrain:
AB=100m BAD(angle)=60* BAC(angle)=22* ABD(angle)=90*

calculer la largeur en mètre de cette rivière (valeur approchée au dixième près)

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: