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disa [49]
2 years ago
9

If you have a bag full of balls. It has 6 blue balls, 6 red balls, and 6 green balls. Let's say you take three balls randomly at

a time, what is the probability of you taking one ball of each colour?
Mathematics
1 answer:
ElenaW [278]2 years ago
7 0

Answer:

1/18 I believe or it should be 1/3. May be wrong, sorry

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If the arc length of a sector in the unit circle is 4.2, what is the measure of the angle of the sector?
iren [92.7K]
Bear in mind the Unit Circle is called so, because its radius is exactly 1, thus just 1 unit, the Unit Circle

anyway    \bf \theta=\cfrac{180s}{\pi r}\qquad 
\begin{cases}
\theta=\textit{central angle in degrees}\\
r=radius\\
s=\textit{length of the arc}\\
----------\\
s=4.2\\
r=1
\end{cases}\implies \theta=\cfrac{180\cdot 4.2}{1\cdot \pi }
4 0
3 years ago
The sum of two numbers is 53 and the difference is 27. What are the numbers?
ikadub [295]

Answer:

The numbers are 39 and 14.

Step-by-step explanation:

Equation 1, sum of the numbers:

 

x  +  y   =  53

 

Equation 2, difference of the numbers:

 

x  -  y  = 25

 

System of equations:

 

x  +  y  =  53

x  -  y   =  25

----------------

2x = 78

 

x = 39

 

Solve for y:

 

39  +  y  = 53

 

y  =  14

 

The numbers are 39 and 14.

8 0
2 years ago
You just bought three equally expensive pairs of sneakers and received 20 dollars in change after giving the clerk two You just
dimaraw [331]

Answer:

60

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
John is using two right triangles to build a rabbit cage. Can his right triangles also be isosceles? Explain
Mashcka [7]

Sure, there's such a thing as an isosceles right triangle.   It's what you get when you draw the diagonal of a square.  It has one right angle (of course) and two 45 degree angles.   It's the shape that vexed the Pythagoreans.

5 0
3 years ago
Brandy wants to buy a digital camera that costs $300. Suppose she saves $15 each week. In how many weeks will she have enough mo
Sidana [21]

Answer:

20 week

Step-by-step explanation:

4 0
3 years ago
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