Answer:
2006 sorry if I’m wrong I divided it by 2
Step-by-step explanation:
Answer:
E. Leela Chitnis
Step-by-step explanation:
Answer:
Percentage of balls which are red = 80%.
Step-by-step explanation:
Let the probability of drawing a red ball be x then the probability of drawing a white ball is 1-x.
There are 5C3 = 10 ways of getting 3 reds in 5 draws so the probability of this is 10* x^3 * (1 - x)^2.
The probability of getting 1 red in 5 draws = 5C1 * x (1-x)^4.
The first probability is 32 times the last.
So we have the equation:
10x^3(1 - x)^2 / 5x(1 - x)^4 = 32
2x^2 / (1 - x)^2 = 32
2x^2 = 32(1 -x)^2
2x^2 = 32( 1 - 2x + x^2)
2x^2 = 32 - 64x + 32x^2
30x^2 - 64x + 32 = 0
15x^2 - 32x + 16 = 0
(5x - 4)(3x - 4) = 0
x = 0.8, 1.333...
The probability must be < 1 so x = 0.8 = 80%.
Answer:
Lack of information.
Step-by-step explanation:
Please give more information type of candles and hope this helps! ;)
(2x^2-x-6)/x^2-4
Factor top and bottom and you get
(2x+3)(x-2)/(x+2)(x-2)
The (x-2) cancel out each other leaving,
(2x+3)/x+2
The domain is all real numbers EXCEPT for -2. The domain can never be -2 as it would to the bottom having a zero, and that can't happen
