Ask question

Ask question

All categories

3 years ago

9

There are 2 red marble, 4 green marbles and 4 blue marbles. What is the probability or randomly selecting a green not replacing

it, then selecting a blue ??

2 answers:

adoni [48]3 years ago

5 0

Answer: 4/15

Step-by-step explanation:

Drupady [299]3 years ago

4 0

The probability of randomly selecting a green are 2/6

You might be interested in

If f(x) = 3x - 1 and g(x) = x + 2, find (f- g)(x).

VMariaS [17]

Answer:

(f-g)(x) would be 2x-3

5 0

3 years ago

PLEASEEE HELP MEEEE<br><br>NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

3 0

3 years ago

If A is the subset of B, then A intersects B =B or A is a union B = B

vaieri [72.5K]

Answer: A union B = B

The first one should’ve said A intersects B = A because the entirety of A exists in B

7 0

3 years ago

In a group of 10 people, there are 4 people that have the flu virus. Suppose we pick 3 random persons to test in order to determ

Murljashka [212]

Answer:

Tests is 100% Accurate, so by using the formula of random variable probability.

Step-by-step explanation:

Total number of people = 10

Sample space = p(A) = 10

Number of people that have flu = n(s) = 4

Pick random 3 persons, the possibility that they have flue is n(A) = ?

Let X is the random variable, consisting of number of positive flu test,

Tests is 100% Accurate, so by using the formula of random variable probability, we get

P(X) = n (A) / n(S)

P(X) = ¾, is the probability of having positive flu test

5 0

3 years ago

Helpppppppppppppppppppppppppp me owo plzzzzzzzzzz

Tanya [424]

Answer:

Just concentrate you can do it

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers