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
navik [9.2K]
3 years ago
6

Find the probability of each event. Answer IN FRACTION form.

Mathematics
1 answer:
IgorLugansk [536]3 years ago
4 0

Answer:

= 8/6435

Step-by-step explanation:

Number of black balls = 8

Number of Brown balls = 5

Total number of balls = 8+5 = 13

Pr (8 balls picked at random are black ) =

Number of black balls / Total number of balls.

1st Pr ( 8 balls picked are black) = 8/13

Pr (2nd random pick) = 7/12

Pr (3rd random pick) = 6/ 11

Pr (4th random pick) = 5/10

Pr (5th random pick) = 4/9

Pr (6th random pick) = 3/7

Pr (7th random pick) = 2/6

Pr (8th random pick) = 1/5

Pr (8 balls picked at random are black ) = 8/13 * 7/12 * 6/11 * 5/10 * 4/9 * 3/7 * 2/6 * 1/5

= 8/13 * 7/12 * 6/11 * 1/2 * 4/9 * 3/7 * 1/3 * 1/5

= 8/6435

But pls note, I solved it such that there wasn't a replacement after each pick.

Math is fun

You might be interested in
Write in slope intercept form an equation of the line that passes through(-4,1), (4,3)
saul85 [17]

Answer:

Step-by-step explanation:

I know this is not your question but it may help

Question:Write an equation in Slope intercept form of the line that passes through the given  points (-3,4) (1,4)

2 Answers:

1: y=x+4

2:

answer would be “y=4”

to find the answer: first you have to find the slope with the given points. (y2 - y1 / x2 - x1)

plug it in to get: (4-4 / 1- -3) = 0/4 = 0

this means the slope would be 0

if the y intercepts are the same then it usually indicates that the slope would be 0 and that the answer is the y intercept.. but if you don’t understand how to get slope-intercept using other coordinates then here’s how:

you can use point-slope formula (y-y1 = m (x-x1) in order to do this just plug in one of the coordinates. in this case an example of point-slope form would be:

y-4 = 0 (x - -3) or y-4 = 0(x-1)

it doesn’t matter which coordinates you use..

then solve the point slope for slope-intercept.

y-4 = 0(x-3) multiply 0 with x and -3

y-4 = 0x move -4 to the right by adding 4

y = 0x + 4 or y = 4 would be your answer!

7 0
2 years ago
PLEASE I NEED HELP URGENTLLY, AND PLEASE SHOW WORK
kvasek [131]

Answer:

Ok, so I say that the answer is 100

5 0
3 years ago
How to do this problem
ANTONII [103]
First move the decimal by one and add a 0 and then a decimal after the 0.
then divide from there
6 0
3 years ago
Read 2 more answers
Find the area of an equilateral triangle (regular 3-gon) with the given measurement.
notka56 [123]
A= (1/2) b*h
h=3 sqrt3
A= (1/2)*6*3sqrt3
A= 9sqrt3 square inches
3 0
3 years ago
Read 2 more answers
Graph x+4y=8 <br> what is the x-intercept?
Tomtit [17]

Answer:

(4,1)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • A number has the same digit inits hundreds place and its hundredths place. how many times greater is the value of the digit in t
    14·1 answer
  • Explain how you found the value of the mean<br>​
    13·2 answers
  • In 2007, the first iPhone was priced at $599. Today the iPhone 11 is priced at $999 . What is the percent change in the cost.
    5·1 answer
  • Factorise fully 3x+18​
    14·1 answer
  • Roseanne makes 1 1/2 L of lemonade. She pours 1/4 of liter of lemonade into a thermos to take to the park. Her brother drinks 2/
    12·1 answer
  • Giving 15 points plz plz help me
    7·1 answer
  • Angela makes custom picture frames that she sells online. The glass pane of the frame costs her $30.00. If the glass pane repres
    7·1 answer
  • Determine the equation of a line parallel to the line y = 3 that contains the point (2,-3).
    7·1 answer
  • FOR A HUNDRED POINTS! AND BRAINLIEST!!!
    6·2 answers
  • Dave has 25 3/4 feet of piping and needs to cut it in 1 1/2 foot measurements for a project. How many pieces of piping will he e
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!