All categories

3 years ago

a plastic bag contains 5 marbles. two of the marbles are red and 3 of the marbles are blue. without looking, what is the probabi

lity of pulling out a blue marble and then another blue marble?(Assume that you don't put the first blue marble back in the bag) write your answer as a fraction.

Mathematics

1 answer:

Hitman42 [59]3 years ago

4 0

$|\Omega|=5\cdot4=20\\|A|=3\cdot2=6\\\\P(A)=\dfrac{6}{20}=\dfrac{3}{10}$

You might be interested in

Calculate the total area of the bottom sections of the back and the two side walls which should be tiled.Give your answer in squ

arsen [322]

Step-by-step explanation:

calculate the total area of the bottom sections of the back and the two side walls which should be tiled.Give your answer in squared metres rounded a

accurately to 2 decimals

6 0

2 years ago

Consider the following graph of two functions,S(1) + 8(2)Step 1 of 2: Finds (1) + 8(2)Enable Zoom/Pan8(x) = x2 - 2x - 1S(x) = -x

kumpel [21]

.Given:

$\begin{gathered} f(x)=-x+1 \\ g(x)=x^2-2x-1 \end{gathered}$

ToDetermine: The value of

$f(1)+g(2)$

Solution

$\begin{gathered} f(x)=-x+1 \\ f(1)=-1+1 \\ f(1)=0 \end{gathered}$ $\begin{gathered} g(x)=x^2-2x-1 \\ g(2)=(2)^2-2(2)-1 \\ g(2)=4-4-1 \\ g(2)=-1 \\ f(1)+g(2)=0+(-1) \\ f(1)+g(2)=-1 \end{gathered}$

Hence, f(1) + g(2) = -1

3 0

1 year ago

What’s 836 written in expanded form

kotegsom [21]

8.36x10^3 ? i think :(. i'm not sureeee

6 0

3 years ago

Read 2 more answers

Which equation can be used to find the answer?

Wewaii [24]

The answer is A n = 46

8 0

3 years ago

Find a general solution of y" + 4y = 0.

klio [65]

Answer:

$y(x)=C_{1}cos2x+C_{2}sin(2x)$

Step-by-step explanation:

It is a linear homogeneous differential equation with constant coefficients:

y" + 4y = 0

Its characteristic equation:

r^2+4=0

r1=2i

r2=-2i

We use these roots in order to find the general solution:

$y(x)=C_{1}cos2x+C_{2}sin(2x)$

8 0

3 years ago