Answer:
I dont know if this is much help but I asked my mom to review it as she said it was correct. :)
Answer:
x=-3
y=3
Step-by-step explanation:
-27=-9x-18y equation 1
-5y-10x-15=0 equation 2
using equation 2 we have:
-10x -15 =5y
y= -2x -3 equation 3
using equation 3 in equation 1 we have:
-27=-9x-18(-2x -3)
-27= -9x +36x +54
-27-54 =27x
-81 = 27x
so we have:
x= -81/27
x=-3
y= -2(-3) -3
y= 6-3
y = 3
Answer:
option A, x² = 12
Step-by-step explanation:
In this question a secant has been drawn from an external point, bisecting the circle in two parts, one is 6 and second is 2 units.
From the same point a tangent has been drawn of length = x
By theorem of secants and tangent.
x² = 6 × 2 = 12
Therefore, option A, x² = 12 is the answer.
Dacá 800 este 100% atunci 25% va fi 800/4 = 200 lei
deci resultá cá obiectul dupá reducere va costa 800-200 = 600 de lei
sper sá-ti fie de folos
succes
The critical point is (-30,0) I think