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klio [65]
2 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]2 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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2. Calculate the angular speed of the 26-inch bicycle rotating at 200 revolutions per minute. Express your answer in radians per
Alexus [3.1K]
The angular velocity for this problem is given by:
 Angular speed = 200 rev / min
 The first thing you should keep in mind is the following conversion:
 1 rev = 2π radians
 Applying the conversion we have:
 Angular speed = 200 * (2π)
 Rewriting:
 Angular speed = 200 * (2 * 3.14)
 Angular speed = 1256 radians / minutes
 Answer:
 
the angular speed is:
 
Angular speed = 1256 radians / minutes
4 0
3 years ago
Measuring the speed of sound in the ocean is an important part of marine research. One application is the study of climate chang
dalvyx [7]

Answer:

A linear formula for S as a function of D is S=17D+1534

Step-by-step explanation:

We are supposed to find a linear formula for S as a function of D.

Equation of line : y = mx+c

We are given that At the surface, the speed of sound is 1534 meters per second.

c = 1534

We are given that for each increase in depth by 1 km, the speed increases by 17 m/s

So, Slope = m = 17

Substitute the values in equation

y=17x+1534

x denotes depth

y denotes speed

We are given that Use D for depth and S for the speed of sound

So, S=17D+1534

Hence a linear formula for S as a function of D is S=17D+1534

7 0
3 years ago
Can someone help please thanks
LuckyWell [14K]

blue with green is 5/10 green and red 3/10 both red 2/10 both blue 4/10

3 0
3 years ago
Read 2 more answers
Hii please help i’ll give brainliest
nlexa [21]

Answer:

its the last one

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A company that makes nails finds that it would sell 42 boxes of nails per month if they are priced at $20 per box. If the compan
denpristay [2]
The answer is D.

If x = number of boxes sold and y = price of nails box, then it is best represented by the equation y = 62 - x.
Checking:
If y = 20 and x = 42, 
20 = 62 - 42
20 = 20

If y = 10 and x = 52.
10 = 62 - 52
10 = 10

<span>Thank you for posting your question. I hope you found you were after. </span><span>Please feel free to ask me another.</span>

8 0
3 years ago
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