N(s) = 36
n(F) = 18
P(E) = 18 / 36
= 1/2.
Answer:
idk
Step-by-step explanation:
idk
Answer:
24/49
Step-by-step explanation:
The options to get 2 of different color is picking blue then red or red then blue.
Starting with picking blue then red.
The chance to pull blue first is 3/7. Then since the marble is replaced the chance to pull red next is 4/7.
The chance to get those in that specific order is the product of the two fractions. (3/7) * (4/7) = 12 / 49
The second option of getting red then blue will be the same as above but 4/7 then 3/7 with the same result of 12/49.
To finish, add the two probabilities together 12/49 + 12/49 = 24/49.
Answer:
this triangle is ABC with A(-2 ; -3), B(4; - 3) and C(3;5)
=>
using Heron theorem, we have:
with S is the area of the triangle
Step-by-step explanation:
Answer:
x=0 y=0
Step-by-step explanation:
3x + y = -7y = x
cancel out all y's
3x+ y(0) = -7(0) = x
3x =x
-x -x
2x = 0
divide both sides by 2
x=0
3x + y = -7y =x
cancel out all x's
3(0) +y = -7y = x(0)
y=-7y
-y -y
0 = -7y
divide both sides by -7
y=0
hope this helps!