Ask question

Ask question

All categories

3 years ago

8

A bag contains 4 red marbles, 8 blue marbles and 2 green marbles. If two marbles are drawn out of the bag, what is the exact pro

bability that both marbles drawn will be red?

1 answer:

navik [9.2K]3 years ago

7 0

Well if you add all the numbers together, the total is 14. So 4/14 chance of pulling out a red marble.

You might be interested in

Rewrite without parentheses. (3y^5z^4-7y^3)(-5yz^6) simplify your answer as much as possible.

Lubov Fominskaja [6]

Answer:

-15y^6z^{10}+35y^4z^6

Step-by-step explanation:

used an equation calculator

7 0

4 years ago

3(x+2) = -5-2(x-3)<br><br> Please show your steps!!

Pie

3x+6=-5-2x+6
3x=-5-2x
3x+2x=-5
5x=-5
x=-1

3 0

3 years ago

At a currency exchange, 10 U.S. dollars can be exchanged for 11 Euros. How many Euros will you receive for 1 U.S. dollar?

Kipish [7]

Answer: 2 Euros.

Step-by-step explanation: Because the amount of Euros was one more than the amount of dollars I added 1 more to the one dollar.

I hope this helps you! :D

3 0

4 years ago

Read 2 more answers

Look at the photo to answer

lubasha [3.4K]

answer is two .....

6 0

3 years ago

Find an equation of a sphere if one of its diameter has endpoints (2,1,4) and (4,3,10)

lara31 [8.8K]

Answer:

$(x-3)^2+(y-2)^2+(z-7)^2 =11$

Step-by-step explanation:

Given that a sphere has one diameter having endpoints (2,1,4) and (4,3,10)

We can find the mid point of these two points and that would be the centre

If we find distance between these two points that would be twice radius.

Distance = 2r = $\sqrt{(4-2)^2+(3-1)^2+(10-4)^2} \\=\sqrt{44}$

So radius = $\sqrt{11}$

Centre of sphere = mid point of two points

= (3, 2, 7)

Using centre radius formula sphere has equation as

$(x-3)^2+(y-2)^2+(z-7)^2 =11$

4 0

4 years ago