Two balls are picked at random from a jar that contains two red and ten white balls. Find the probability of the following events. (Enter your probabilities as fractions. (a) Both balls are red. (b) Both balls are white.

Answers

Answer 1

There are a total of 12 balls in the jar, out of which 2 are red and 10 are white.

(a) The probability of picking a red ball on the first draw is 2/12. After the first ball is drawn, there will be 11 balls left in the jar, out of which only one will be red. Therefore, the probability of picking a red ball on the second draw, given that the first ball was red, is 1/11. By the multiplication rule of probability, the probability of both balls being red is:

P(both red) = P(first red) x P(second red|first red)

= 2/12 x 1/11

= 1/66

(b) The probability of picking a white ball on the first draw is 10/12. After the first ball is drawn, there will be 11 balls left in the jar, out of which 9 will be white. Therefore, the probability of picking a white ball on the second draw, given that the first ball was white, is 9/11. By the multiplication rule of probability, the probability of both balls being white is:

P(both white) = P(first white) x P(second white|first white)

= 10/12 x 9/11

= 15/22

To learn more about probability visit:

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Related Questions

can someone please help me with this?!!
and the first choose options are: linear or nonlinear

Answers

Answer:

nonlinear

Step-by-step explanation:

It isn't a straight line

Ques

The set of values (63, 64, 65, 66} represents solutions of which inequality?

Answers

Answer: 63 < N ≤ 66

Step-by-step explanation:

We have the set:

(66, 64, 65, 66]

First.

When we have an end with the signs "(" or ")" means that the element near the sign does not belong to the set, this would be an "open" end. Usually used for the symbols > and <

While the sign "[" or "]" (in some cases the symbols { and } are used instead)

means that the value next to it are included in the set. Usually used for the symbols ≤ and ≥.

Then in the set: (63, 64, 65, 66} the value 63 does not actually belong, and value 66 does belong.

Then this set is written as:

63 < N ≤ 66

Such that N is an integer number.

What is 4x^2+14x+6=9x^2-6x+1 answer

Answers

Answer:

20x+5=5x^2

Step-by-step explanation:

For this type of albreic question you want to simplify

4x^2+14x+6=9x^2-6x+1

first you take the common integers(That might not be the right word)

4x^2+14x+6=9x^2-6x+1

       +6x  -1  -4x^2

20x+5=5x^2

You cannot simplify any further

At a restaurant, the cost for one breakfast taco and one glass of milk is $2.10. The cost for two tacos and three glasses of milk is $5.15.

Write a system of equations to represent this situation. DO NOT SOLVE.
Let x = # of tacos and y = # of glasses of milk.

Answers

Answer:

2x+3y=5.15

Step-by-step explanation:

The answer is : x + y = 2,10
2x + 3y = 5,15

Help!!! 30 Points!!!

Answers

Answer:

45,90,135,180,225,270,315,360

Step-by-step explanation:

Answer:

45,90,135,180,225,270,315,360

Step-by-step explanation:

Hope this helps :)

18/20 + 12/20 (simpfiy it )

Answers

Answer:

1 [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Add the numerators and keep the same denominator.

18/20 + 12/20 = 30/20

30/20 = 1 [tex]\frac{1}{2}[/tex]

Si al número de grados sexagesimales que contiene un ángulo se le resta 13, y a
un número de grados centesimales se le resta 2, se obtienen dos cantidades en la
relación de 2 a 3. ¿Cuál es la medida circular del ángulo?

Answers

Answer:

I am not sure my guy

Step-by-step explanation:

sorry?

help please i’ll give extra points

Answers

one output for each imput

Cole learned that newly-minted
coins are put into bags. The
mint puts 2,000 half-dollar
coins into 1 bag. What is the
value of 11 bags?

Answers

Answer:

11000 dollars.

Step-by-step explanation:

Interesting question.

1 bag has 2000 half dollars in it.

2000 half dollar coins have a value of 2000 * 1/2 = 1000 dollars.

11 bags = 1000 * 11 = 11000 dolars.

Can someone please help me and explain

Answers

(2x-3)+(6x+7)= 180
(2x•6x)+(-3+7)= 180
(12x)+(4) = 180
12x= 180-4
x= 176/12
x= 14.67

please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The solution is -3.

The graph is attached.

Step-by-step explanation:

To solve, first subtract 2 from both sides to get [tex]5q\geq -15[/tex]. Now divide 5 from both sides to get [tex]q\geq -3[/tex].

The graph representing this is attached.

Hope it helps and is correct!

Mrs. Norton wants to buy health insurance for her family, Plan A costs $620.50 per month. Plan B costs $597.20 per month. How much will she save in 12 months by choosing Plan B instead of

Plan A?

A $7,446.00

B $7,166.40

C $320.60

D $279.60

Answers

Answer:

Step-by-step explanation:

620.50 * 12 = 7,446

597.20 * 12 = 7,116.4

7446 - 7116.4 = 329.6

can somebody please help kinda low on point so i would be greatful for real answers no fake!

Answers

Answer:

I think it would be the Thrid Option if its talking about a Can of Soup. Most cans Of soup are measured in Ounces for Whats contained inside.

i think it’s letter c

what is the factored form of 3/4(24x + 28) - (4x - 1)? ​

Answers

Answer:

2(7x + 11)

Step-by-step explanation:

3/4  ( 24x + 28) - (4x - 1) = 18x + 21 - 4x + 1 = 14x + 22 = 2(7x + 11)

Answer:

2(7x + 11)

Step-by-step explanation:

3/4 (24x + 28) - (4x - 1)

= 18x + 21 - 4x + 1

= 14x + 22

= 2(7x + 11)

Please give me brianliest and follow me if you want me to help you always

Kaylie bought 3 bags of milk for $14. Each bag had 4 litres of milk. What was the cost of milk per gallon?

Steps:
Answer:

Answers

Answer:

about 3 gallons

Step-by-step explanation:

What is the constant of proportionality of y = 7x?

Answers

Answer:

7

Step-by-step explanation:

I did these types of questions for fun in 6th grade

The answer to this question is 7

Para abastecer o seu carro com 30 litros de gasóleo a Inês demorou 1 minuto e 40 segundos. Com a mesma mangueira, quanto tempo é necessário para encher um recipiente com a forma de um cone e uma semiesfera com 10 cm de raio e, o cone, com 10 cm de altura?

Answers

Answer:

hahdg duchy jejeurur y ed sethi. riruru. udhrhru. ueeh

A triangle is translated by using the rule (x,y) (x-4,y+1). Which describes how the figure is moved?​

Answers

left 4 and up 1. x means left and right , y means up and down. x-4 would be left 4, y+1 would be up 1. :)

Answer:

four units left and one unit up

Step-by-step explanation:

this is because x is always horizontal and y is always vertical

Someone plz help me I will give brainliest

Answers

Answer:

Step-by-step explanation:

5. 3/4 +3/4 + 3/4 + 3/4 + 3/4 + 3/4 = (6 x 3)/4 = 18/4 = 4 1/2

6. 16 x 3 x 1/8 = (48x 1)/8 = 48/8 = 6

7. 500 x 2/5 = 500 x 2 x 1/5 = (1000 x 1)/5 = 1000/5 = 200

Write log7(2 ⋅ 6) + log73 as a single log. Log Subscript 7 Baseline 11 Log Subscript 7 Baseline 15 Log Subscript 7 Baseline 36

Answers

Answer:

C. log7 36....................................

The given logarithmic expressions together can be written as log₇ 36

What is a logarithmic function ?

The logarithmic function is an expression which we can write as, y = logₐx, where a>0 & x>0, It is the inverse of exponential function.

Formulae for logarithmic function are,

LogAB = LogA + LogB

Logₐaᵇ = b

Given that,

= log₇(2 x 6) + log₇3

= log₇ 36

We have the result

log A + log B =  log AB

Here the question is log₇(2 x 6) + log₇3.

Using the property of logarithm we will get,

= log₇(2 x 6) + log₇3

= log₇(2 x 6 x 3)  

= log₇ 36

So,   log₇(2 x 6) + log₇3 = log₇ 36

To know more about Logarithmic function check:

https://brainly.com/question/27389970

#SPJ6

4 (2r + 3 ) = 15r - 11 +1 - 7r

Answers

delete this

boop uwu

Answer:

No solutions

Step-by-step explanation:

4(2r + 3) = 15r - 11 + 1 - 7r

Distribute:

8r + 12 = 15r - 11 + 1 - 7r

Combine like terms:

8r + 12 = 8r - 10

Same to both sides:

0r = -22

No solutions

An employee earned $10.00 per hour and then received a raise that paid
him $12.50 per hour. What is the percent change in the amount of money
he makes per hour. ?

Answers

Answer:

25% pay raise

Step-by-step explanation:

12.50-10.00=2.50

2.50/10.00=1/4

1/4=25%

What is the equation of the axis of symmetry of the parabola y=-2x^2+8x-7?
x=.....

Answers

Answer:

Equation of axis of symmetry is x = 2

Step-by-step explanation:

The equation of the parabola is given as;

y = -2x² + 8x - 7

The equation of the axis of symmetry is given by;

x = -b/2a

In the parabola equation given and using letters of quadratic equation, we can say that;

a = - 2

b = 8.

c = -7

Thus;

x = -b/2a = -8/(2 × - 2)

x = 8/4

x = 2

Equation of axis of symmetry is x = 2

PLZZZZZZZZZZZZ HELPpppppp

Answers

Answer:

2x2-y=1

4-y=1

-y=1-4

-y=-3

y=3

Step-by-step explanation:

Ann wants to spend at most \$8.50 on school supplies. She needs to purchase a binder ( costs $6.89) and wants to spend the rest on pens, which cost $ 0.59 each. Which inequality represents this situation, where x is the number of pens Ann can buy?

A. 0.59x + 6.89 < 8.50

B. 0.59x + 8.50 < 6.89

C. 6.89x + 0.59 < 8.50

D. 8.50x + 6.89 < 0.59

Please help

Answers

Answer:

I think it is A. Sorry if I am wrong

Step-by-step explanation:

Explain why the net shown here cannot be the net of a cube

Answers

Answer:

there is an extra square missing

Step-by-step explanation:

Factor completely by grouping: 6x² + 2x + 9x +3
is

Answers

Answer:

(2x+3)(x+1)

Step-by-step explanation:

6x² + 2x + 9x +3

(6x² + 2x) + (9x +3)

2x (x+1) + 3 (x+1)

(2x+3)(x+1)

Answer:

(3x+1) ( 2x+3)

Step-by-step explanation:

6x² + 2x + 9x +3

Make the groups

6x² + 2x     +   9x +3

Factor 2x out of the first group  and 3 out of the second group

2x( 3x+1)   + 3(3 x+1)

Now factor out the common term inside the parentheses

(3x+1) ( 2x+3)

Which statement(s) describe parallel lines? Choose ALL that apply.


A. Parallel lines never cross or meet.

B. Parallel lines create a 90 degree angle.

C. Parallel lines intersect.

Answers

Parallel lines never cross or meet

Definetily its A) Parallel linea never cross or meet.

Now practice solving some problems.


Find the solution of y = –3x – 1 for x = –5.


A.
(–5, –16)


B.
(–16, –5)


C.
(–5, 14)


D.
(14, –5)

Answers

Answer:

The answer is C. (-5, 14)

Please help. Due today.

Answers

Answer:

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

because 2^ 3= 16 so you can pull it out.

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