1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ne4ueva [31]
3 years ago
7

An urn contains 10 bails: 5 are white, 3 are red, and 2 are black. three balls are drawn at random, with replacement, from the u

rn. what is the probability that all 3 balls are different colors?
Mathematics
1 answer:
cupoosta [38]3 years ago
7 0
If three balls are drawn from 10 balls with replacment, then you should count:
1. the probability to choose white ball - P_w= \dfrac{5}{10} = \dfrac{1}{2};
2. the probability to choose red ball - P_r= \dfrac{3}{10};
3. the probability to choose black ball - P_b= \dfrac{2}{10}= \dfrac{1}{5}.
Using the product rule you can conclude that <span>the probability that all 3 balls are different colors is:
</span><span>
</span><span> \dfrac{1}{2} \cdot \dfrac{3}{10} \cdot \dfrac{1}{5} = \dfrac{3}{100}.</span>

You might be interested in
What is 345.6 in expanded form
baherus [9]
<span>300 + 70 + 6 is the right answer

</span>
8 0
3 years ago
Read 2 more answers
Soo how i do this its hard to simplify it
gregori [183]

Answer:

v = 3

w = -3

I used a calculator called m.a.t.h.w.a.y :)

6 0
2 years ago
Read 2 more answers
Factorize 7√​2 k^2 - 10k - 4√2<br> ​<br> ​​
d1i1m1o1n [39]

Answer:

7k√​2 - 10k - 4√​2

Step-by-step explanation:

Factor the polynomial.

Factor : One of two or more expressions that are multiplied together to get a product.

Polynomial : An algebraic expression consisting of one or more summed terms, each term consisting of a constant multiplier and one or more variables raised to integral powers.

5 0
3 years ago
Heather, Eric, and Chang sent a total of 116 text messages over their cell phones during the weekend. Chang sent 3 times as many
notka56 [123]

Answer:

Step-by-step explanation:

Declaration

Let Heather's number of messages = x

Let Eric's number of messages = x + 9

Let Chang's number of messages = 3(x +9)

Equation

x + x + 9 + 3(x + 9) = 116    

Solution

x + x + 9 + 3(x + 9) = 116                             Remove the brackets

x + x + 9 + 3x + 27 = 116                             Combine like terms

x + x + 3x + 9 + 27 = 116

5x + 36 = 116                                               Subtract 36 from both sides

5x + 36 - 36 = 116 - 36                                Combine

5x = 80                                                       Divide both sides by 5

5x/5 = 80/5

x = 16

Answer

Heather = 16

Eric = 16 + 9 = 25

Chang = 3*25 = 75

5 0
2 years ago
If the Alpha company is 79% staffed and the Beta company is only 62% staffed, what is the relative change of staffing from the A
sweet [91]

Answer:

27.41%

Step-by-step explanation:

Data provided in the question

The staffed of Alpha company = 79%

The staffed of Beta company = 62%

Based on the above information, the relative change of staffing from Alpha to beta company is

As we know that

\bold {\ Relative \ change = \frac{\alpha- \beta }{\beta }}

= \frac{(79 -62)}{62} \% \\\\= \frac{17}{62} \times 100\\\\=0.2741 \times 100\\\\=27.41\ \%

By applying the above formula we can get the relative change and the same is to be applied so that the correct percentage could come

5 0
3 years ago
Other questions:
  • Alicia bought 4 T-shirts for $23.00. Using the unit rate, how much would 6 T-shirts cost?
    6·1 answer
  • How much simple interest does 600 make in 3 years at7%per annum<br>​
    8·1 answer
  • For all 5 problems in this assignment, use the following functions:
    5·1 answer
  • Savings account A has $500 and pays 4% interest yearly. Savings account B
    5·1 answer
  • 6x-y≥-10 help me please find it
    13·1 answer
  • Gabriela remembered that her personal finance teacher in high school always encouraged each person to “pay yourself first” so sh
    11·1 answer
  • Help&amp;EXPLAIN <br> •••••••••••••••••••
    12·1 answer
  • Pose two problems of everyday life where addition, subtraction, multiplication and division of integers are used​
    5·1 answer
  • Drag the tiles to the correct boxes to complete the pairs not all tiles will be used match each sine or cosine value to its equi
    14·1 answer
  • Find the slope of the line shown on the graph to the right.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!