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klio [65]
3 years ago
8

A box contains four red two white and three green marbles all of which are the same size two marbles are selected one after from

the box without replacement what is the probability that marbles are the same color
Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0

The probability that the marbles selected are of the same colour is; 5/18

<h3>Probability of outcome</h3>

The probability that the marbles are the same colour includes:

  • The probability of 2 reds, 2 whites, 2 greens.

The total number of marbles = 9 marbles.

Since, the selection is without replacement;

The probability of selecting same colour marbles is;

  • {4/9×3/8} + {2/9×1/8} + {3/9×2/8}

The probability of selecting same colour marbles is therefore;

  • 12/72 + 2/72 + 6/72

  • = 5/18

Read more on probability;

brainly.com/question/24756209

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Art [367]

7 billion is the answer.



5 0
3 years ago
Need to find the equation for the line with the given properties. Express your answer using either the general form or the slope
Phoenix [80]

To answer this question we will use the following slope-point formula for the equation of a line:

y-y_1=m(x-x_1)\text{.}

Therefore, the equation of the line that has a slope of 1/3 and passes through the point (-3,3) is:

y-3=\frac{1}{3}(x-(-3))\text{.}

Simplifying the above equation we get:

\begin{gathered} y-3=\frac{1}{3}(x+3), \\ y-3=\frac{1}{3}x+1. \end{gathered}

Adding 3 to the above equation we get:

\begin{gathered} y-3+3=\frac{1}{3}x+1+3, \\ y=\frac{1}{3}x+4. \end{gathered}

Answer:

y=\frac{1}{3}x+4.

4 0
1 year ago
Mrs. Sloane has $500 to buy a video game console and some video games for her family. Including tax, the video game console cost
nexus9112 [7]

Answer:

1 console and 8 games because

Step-by-step explanation:

one console cost 280 and each game costs 25 so do 500-280=220 so, u have 220 dollars left basically. 220/25=8.8 so 8 games u can buy and the tax will be $20 because 0.8 * 25 = 20 so theres ur tax and u have to answer my question

6 0
3 years ago
If f(x)= -x^2 - 1, and <br>g(x)=x + 5, then <br><br>g(f(x))=___x^2+___x+___<br>​
alekssr [168]

Answer:

Step-by-step explanation:

g(f(x))

g(-x^2 - 1)

-x^2 + 0x + 4= -x^2 + 4

4 0
3 years ago
Whats the answer<br> i dont know this
Mazyrski [523]

Answer:

9.2

Step-by-step explanation:

a^2 + b^2 = c^2 (pythogoras theorem)

7^2 + 6^2 = 85

Square root of 85 = 9.2 ( nearest tenth)

I think this is right if not srry :(

3 0
2 years ago
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