Mathematics College

There is a bag filled with 5 blue and 6 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 blues?


PLZ answer fast its an emergancy

Answers

Answer 1

Answer:

5/11*5/11=25/121

Step-by-step explanation:

There are 6+5 marbles.

Of those, 5 are red.

The chances of drawing a red marble are 5/11

Since you replace the marble you drew, the chances each draw remain 5/11

You cannot draw two red marbles without drawing a red marble on your first draw, so the odds of you making a second draw are 5/11. The odds of that also being red are 5/11… but we only care about that 5/11ths the time

Related Questions

Kerry has 300 marbles. 25% of the marbles are green 15% of the marbles are red and the rest of the marbles are blue. How many blue marbles does he have

Answers

Answer:

180

Step-by-step explanation:

1%=3

25%=75

15%=45

100-(25+15)=60

60%=60*3=180

On the graph of f(x)=sinx and the interval [0,2π), for what value of x does f(x) achieve a minimum? Choose all answers that apply.

Select all that apply:
0
π/4
π/2
π
3π/2

Answers

Answer:

3π/2

Step-by-step explanation:

See attached graph

PLEASE HELP ME ANSWER The probability that Scott will be late for work is 0.15. In a year Scott works for 240 days. Work out the expected number of days that he will be late......

Answers

Answer:

36 days

Step-by-step explanation:

Given

[tex]p = 0.15[/tex] -- probability of coming late to work

[tex]n = 240[/tex] -- number of days

Required

Determine the expected number of days of coming late (E(x))

This is calculated using:

[tex]E(x) = np[/tex]

[tex]E(x) = 240 * 0.15[/tex]

[tex]E(x) = 36[/tex]

The expected number of days is 36

(-5 + 5i) + (4 – 4i)?

Answers

Answer:

The answer is:

Step-by-step explanation:

1. -30

2. 20

-1 + i is your answer

The daily temperature in the month of March in a certain city varies from a low of 24 degrees F to a high of 40 degrees F. Find a sinusoidal function to model daily temperature and sketch the graph. Let t=0 correspond to noon, when the highest temperature of the day occurs.
Please help I'm in the test. ​

Answers

Answer:

d(t)=8cos((pi/12)t)

Step-by-step explanation:

I think this is correct...

A=8 b/c 40-24=16, 16/2 = 8

B=2pi/per, 2pi/24, B = pi/12

PLEASE ANSWER ASAP


Maryam writes down the following 6 numbers
11, 11, 12, 18, 19, A

Maryam works out the mean of the 6 numbers, she then increases the value of a by 60
What will this do to the mean of the 6 numbers?

Answers

It will make it increase by a lot

What is - or how do you find answer to:
12 1/2 - (-4 1/2) =

Answers

Answer:

8

Step-by-step explanation:

12 times 1/2=6

(-4(1/2))= -2

6-(-2)

6+2

=8

Can anyone help me with this? (I also need a reasoning)

Answers

Work:

Substitute the number to corresponding variable.


Sai: B = 2/3G

(4) = 2/3(6)

4 = 4 Correct


Tyani: G = 3/2B

(6) = 3/2(4)

6 = 6


Both are correct.

THE MARKED PRICE OF A BOOK IS ₹225 THE PUBILSHER ALLOWS DISCOUNT ₹ 10PERSENT UNIT FIND THE SELLING PROFIT​

Answers

255-10

245 skaisusjxl ksusus

Marked price=Rs. 225
Discount=10%
=
100
10
​
×225=22.5Rs.
S.P.=M.P.−Discount
=Rs. (225−22.5)
=Rs. 202.5.

what is the square root of 121

Answers

Answer:

11

Step-by-step explanation:

-6х + 5 y = 1
6х + 4 y = –10

Answers

Times top equation by -1
6x-5y=-1
6x+4y=-10
Subtract bottom equation by top
-9y=9
y=-1
substitute this into an equation
-6x-5=1
add 5 to both sides
-6x=6
x=-1
y=-1 x=-1

Answer: 16-!

Step-by-step explanation:

What is the slope of the line that passes through (0, -4) and (6,4)? *
3/4
4/3
0 -3/4
- 4/3

Answers

ANSWER:

The Slope to your answer is 4/3

32 = 4(n – 5) and -s + 11 = 17 please solved Both of the following​

Answers

Answer:

n=13 s=-6

Step-by-step explanation:

Hope this helps :)

Answer:

Step-by-step explanation:

Let's solve your system by substitution.

32=4(n−5);−s+11=17

Rewrite equations:

32=4n−20;−s+11=17

Step: Solve 32=4n−20 for n:

32=4n−20

32+−4n=4n−20+−4n(Add -4n to both sides)

−4n+32=−20

−4n+32+−32=−20+−32(Add -32 to both sides)

−4n=−52

−4n/ −4 =/ −52/ −4

(Divide both sides by -4)

n=13

Step: Substitute 13 for n in  −s+11=17:

−s+11=17

−s+11=17

−s+11+−11=17+−11(Add -11 to both sides)

−s=6

−s/ −1 = 6/ −1

(Divide both sides by -1)

s=−6

Answer:

n=13 and s=−6

 

Find the GCF of 4y and 12y

Answers

Answer:

4

Step-by-step explanation:

The factors of 4 are: 1, 2, 4

The factors of 12 are: 1, 2, 3, 4, 6, 12

Then the greatest common factor is 4.

Hope this helps! :D

Please mark brainlist

Answer:

4y

Step-by-step explanation:

I just took it in my math period,

3/4 X24 in simplest from

Answers

Answer:

3/4 x 24 = 3/4 x 24/1 = 72/4 = 18

Let me know if this helps!

If x=5 then what is 3x+(2-4x). P.S. standard form

Answers

Answer:

-3

Step-by-step explanation:

3x+(2-4x)

3*5+(2-4*5)

3*5+(2-20)

3*5+(-18)

3*5-18

15-18

-3

3x + 2 - 4x
3x - 4x + 2
-1x + 2
-1(5) + 2

plssssss someone help pls pls pls i dont get this look
Suppose you know that ∠S and ∠Y are complementary, and that m∠S = 4(m∠Y) − 160°. Find m∠Y

Answers

Answer:

I think the answer is 50.

Step-by-step explanation:

Y + S = 90

S = 4 (Y) - 160

160 = 4 (Y)

Y = 40

90 - 40 = 50

Hope it's correct and helps!

Which expression is equivalent to 2x2 + 2x + 4? (2x - 1)(x + 4) (2x + 1)(x - 4) C (2x + 1)(x + 4) None of these​

Answers

Answer:

D. None of these​

Step-by-step explanation:

Given expression:

2x² + 2x + 4

Answer options for equivalent expression:

A. (2x - 1)(x + 4)= 2x² + 8x - x - 4 = 2x² + 7x - 4

Incorrect

B. (2x + 1)(x - 4) = 2x² - 8x + x - 4 = 2x² - 7x - 4

Incorrect

C. (2x + 1)(x + 4) = 2x² + 8x + x + 4 = 2x² + 9x + 4

Incorrect

D. None of these​

Correct

ebook
2.3.49
Write an equation in standard form of the line passing through the points (1,5) and (3, 13).

Answers

Answer:

[tex]y - 4x = 1[/tex]

Step-by-step explanation:

Given

[tex](x_1,y_1) = (1,5)[/tex]

[tex](x_2,y_2) = (3,13)[/tex]

Required

The equation of the line

Back up:

First, calculate the slope(m)

[tex]m = \frac{y_2 -y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{13-5}{3-1}[/tex]

[tex]m = \frac{8}{2}[/tex]

[tex]m = 4[/tex]

Calculate the area using:

[tex]y - y_1 = m(x - x_1)[/tex]

[tex]y- 5 = 4(x - 1)[/tex]

[tex]y- 5 = 4x - 4[/tex]

Collect Like Terms

[tex]y - 4x = 5 - 4[/tex]

[tex]y - 4x = 1[/tex]

PLEASE HELP ITS ALMOST DUE

Answers

Answer:

we have"

[tex]\frac{q}{36}=\frac{16-q}{28}\\\\<=>28q=36(16-q)\\\\<=>28q=576-36q\\\\<=>64q=576\\\\=>q=9[/tex]

Step-by-step explanation:

Which is the graph of f(x)=3^x

Answers

Answer:

Now plot the points in the coordinate plane.

Finally draw a smooth curve joining the points.

Step-by-step explanation:

Yeshdjsksjshwndjskajahajaa

answer this please!!

Answers

Answer:

I really don't know, but you submitted this like 23 hours ago, so I don't think it will help if I answer!!!

Step-by-step explanation:

Can I be Brainliest!!!

Sam made fruit punch for a party. He mixed 3 gallons of orange juice, 2 quarts of pineapple juice, 4 pints of cranberry juice, and 6 cups of apple juice. How many quarts did he make in all?

Answers

Answer:

19 quarts

Step-by-step explanation:

you change the measurements to quarts.

Kristin has 3 2/3 yards of plaid ribbon. She has 2 5/6 yards of polka-dot ribbon.

How much more plaid ribbon than polka-dot ribbon does she have?
Last one

Answers

Answer:

7/8

Step-by-step explanation:

I think but im 60% im right

Lmk.................

Answers

Answer:

A) 8t

Step-by-step explanation:

I hope this helps :)

Can you please help me On question nine

Answers

Answer:

B.

Step-by-step explanation:

Unit rate is where the second quantity is one unit.

hope this helps :)

Joan reads that the mass of an average
elephant's brain is 34 kilograms greater
than an average man's brain. How many
kilograms is an average elephant's brain?

Answers

Answer:

35.5 kilograms

Step-by-step explanation:

An average human's brain is 1.5 kilograms.

1.5 + 34 = 35.5

4 − 3( − 2) + (1/2)(6 − 8)

Answers

Answer:

9

Step-by-step explanation:

Answer: 9

Step-by-step explanation:

PLEASE SOMEONE HELP WITH MY MATH!

Answers

Answer:

Oop

Step-by-step explanation:

Which of these has the smallest product?

Answers

Answer:

B

Step-by-step explanation:

1/5 x 5/6 = 5/30

Hope this helps!

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