A. There are 300 fish in a pond. 50 fish are tagged. If you catch one fish out of the pond, what is the probability that your fish is tagged? Write your answer in a fraction and a decimal. Explain and show your work.


B. Suppose you catch 100 fish out of this pond. How many of these fish would you expect to be tagged? Explain.

Answers

Answer 1

Answer:

B. 50

Step-by-step explanation:

Answer 2

Answer:

The probability is 16.6%

And if you catch 100 fish, you should expect at least 17 of them are tagged.

Step-by-step explanation:

Let A be the event of catching a tagged fish:

[tex]P(A) = \frac{50}{300} = \frac{1}{6} = 0.166[/tex]

Now if you catch 100 fish, each one has the probability of 1/6 and each event is independent of the other.

[tex]N = \frac{1}{6} * 100 = 16.6[/tex]


Related Questions

g−9=−19

Help plz


Pleaseeeeee

Answers

Answer:

g = -10

Step-by-step explanation:

BRAINLIST!!! ONLY CORRECT ANSWERS!

Which verbal expression does NOT represent 9-x?

x less than nine
subtract x from nine
x decreased by nine
the difference of nine and x

Answers

c is the correct answer

The verbal expression that does not represents 9 - x is

x decreased by nine.

Option C is the answer.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

The expression for each of the following.

x less than nine

= 9 -x

Subtract x from nine.

= 9 - x

x decreased by nine.

= x - 9

The difference of nine and x.

= 9 - x

Thus,

x decreased by nine does not represent 9 - x.

Learn more about expressions here:

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Find the greatest common factor​ (GCF) for each pair of numbers.
9 and 33

Answers

Answer:

3

Step-by-step explanation:

Write the factors for each term

9 = 1,3,9

33 = 1,3,11,33

The greatest common factor is 3

3 is the GCF of 9 and 33

Need help now!!!! Find the area of a rhombus

Answers

Answer: 80 in

Step-by-step explanation:

Answer:

64 in

Step-by-step explanation:

How would I solve this problem?

Answers

Answer:

n= 4

Step-by-step explanation:

[tex]a^{m}*a^{n}=a^{m+n}\\\\(a^{m})^{n}=a^{m*n}\\\\\frac{a^{m}}{a^{n}}=a^{m-n}[/tex]

[tex]7^{7}*7^{5}=\frac{(7^{n})^{4}}{7^{4}}\\\\7^{7+5}=\frac{7^{n*4}}{7^{4}}\\\\7^{12}=\frac{7^{4n}}{7^{4}}\\\\7^{12}=7^{4n-4}[/tex]

Compare the exponents,

4n - 4 = 12     {Add 4 to both sides}

4n = 12 + 4

4n = 16

n = 16/4

n = 4

HELP ME ASAP


Lucy is baking a cake. The recipe requires 6 cups of flour and 8 cups of sugar. Which
ratio of cups of flour to cups of sugar can be used to make more than

Answers

B:

Step-by-step explanation

The expression 5 + 5x is equivalent to the expression

Answers

Answer:

5(1+x)

Step-by-step explanation:

Solve |-x+ 5| = |3x – 3| by graphing.

Answers

Answer:

your points should be -1 and 2

Step-by-step explanation:

hope this helps :)

Answer:

x=-1 and 2.

Step-by-step explanation: If you have a calculator, (ti 84), go to math, and Numeric solver. insert the equations. Or you can solve this algebraically

Can someone explain the process of getting to Angle A? I know the answer is 44.1 but I need to show my work so can someone show me the process of getting the answer and please explain! Thank you!!

Answers

Answer:

Step-by-step explanation:

First you have to calculate CB in order to use sin law to calculate ∠A

CB=[tex]\sqrt{18.4^{2} -13.2^{2} }[/tex]

CB=12.8(correct to nearest tenth)

After that, use sin law to calculate ∠A,

[tex]\frac{18.4}{sin90} =\frac{12.8}{sinA}[/tex]       or    [tex]\frac{sin90}{18.4} =\frac{sinA}{12.8}[/tex]

sinA=0.695...

A=44.079...

  =44.1(corrext to the nearest tenth)

Is that clear enough for you?

xy (3.rº + 2x – 3y) simplify

Answers

I think answer should be 8 please give me brainlest let me know if it’s correct or not okay thanks bye

HELP PLEASE IM STUCK!!!!!

Answers

Slope of the function is 5000. It seems the question is in the video so rewatch to find what it is representing.

A cactus casts a shadow that is 15 feet long. A gate nearby casts a shadow that is 5 feet long. Find x, the height of the cactus. in middle school

Answers

Answer 15 ft

hope it is helpful

The answer will most likely be 15ft :)
Hopefully it’s right

Is there a way to quickly find a function if you have a handful of ordered pairs?
ex. (-6, 10) (-4, 7) (-2, 4) (0, 3) (2, 0) (4, -3)

Answers

Yeah. You basically have to look at every x value and see if for every x value, is there ONLY one y-value. So in your example, it is a function because every x value has only one y value. Let’s say you had (1,3) and (1,5). That would not be a function because the x value of 1 has TWO y values (3 and 5), therefore it is not a function.

That’s how you can easily spot if something is a function by just looking at a handful of ordered pairs. I hope this makes sense.
Plug into your calculator and Use linear regression

plz show how you got the answer​

Answers

D. Would be correct. Turn 2 1/4 to a mixed fraction. 2 1/4 would be 9/4. 1 1/4 into mixed fraction form would be 5/4. 9/4+ 5/4 = 14/4. 14/4 equals 3 2/4 which equals 3 1/2.

Hi there! I'm here to help. :)

Okay, so here you are solving for x. To solve for x, you must get it alone on one side of the equal sign. As we can see, it is not alone, and it is with 1 1/4 on the left side of the equal sign.

To get it alone, we need to subtract 1 1/4 from both sides. However, to subtract fractions, we need to make sure they have the same denominator. Looking at the fractions, we can see that they have two different denominators.

Begin by converting both fractions into improper fractions:

1 1/4 = 5/4

3 1/2 = 7/2

So now our equation looks like this: x + 5/4 = 7/2

Now we need to make it to where we our fractions have the same denominator.

Our current denominators are 4 and 2. The LCM (lowest common multiple) of 4 and 2 is 4, so you leave 5/4 as it is (because it's denominator is already 4) and you change 7/2.

Multiply 2 * 2 to make the denominator 4 in 7/2, but whatever you do to the denominator, you MUST do to the numerator. So multiply 7 * 2 = 14. Now your fraction looks like this: 14/4

Now we have:

1 1/4 = 5/4

3 1/2 = 14/4

Our denominators are the same now! Now here comes the easy part: We subtract! Do 3 1/2 - 1 1/4, or, 14/4 - 5/4. To subtract fractions, simply subtract the numerators and leave the denominators as is. 14 - 5 = 9, so 14/4 - 5/4 = 9/4.

Now our equation looks like this:

x = 9/4

LASTLY: All of your options are mixed numbers, so convert this improper fraction back into a mixed number. 9/4 = 2 1/4.

So, x = 2 1/4. :)

Classify this triangle by its sides?

Answers

Answer:

Isosceles

Step-by-step explanation:

Hope this helps you

The answer is the first one

Please hurry
5/6x-1/3>1 1/3?​

Answers

Answer:

-5/18 >4/3

Step-by-step explanation:

Make this brainliest , thank you!

WILL GIVE BRAINLIEST PLZZZ HELP

Answers

Answer:

1.5

Step-by-step explanation:

Cause the standard of the table and the multiplication of have 3a,0,5 will give you your answer.

1.5 is the answer I think ..

what is the absolute value of -6 please help

Answers

Answer:

6

Step-by-step explanation:

its 6

The cost of a 4 pack of apple juice is $ 2.24. Write an equation that relates the cost in dollars, y, to the number of apple juice cartons, x.

Answers

Answer:

Cost = y/x

Step-by-step explanation:

The cost of a 4 pack of apple juice is $ 2.24.

We need to write an equation that relates the cost in dollars, y, to the number of apple juice cartons, x.

As 4 packs = $2.24

1 pack = 0.56

So, the equation can be :

Cost = y/x

Is x = 6 a solution to the equation 5(x – 3) = x + 13? Follow the steps to find out. 1. Rewrite the equation 5(x – 3) = x + 13 with 6 substituted for x. Write a question mark over the equal sign to show that you're testing to see if the equation is true. 2. Simplify both sides. Show your work. 3. Is x = 6 a solution to the equation? Why or why not? 4. Find a value of x that is a solution to 5(x – 3) = x + 13. Describe how you found the solution.

Answers

Answer:

x = 7

Step-by-step explanation:

Testing if 6 is the solution:

5(x – 3) = x + 135(6 - 3) ? 6 + 135(3) ? 1915 ≠ 19

6 is not a solution

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

Solving for x:

5(x – 3) = x + 13            ⇒ open parenthesis5x - 15 = x + 13              ⇒ isolate variable5x - x = 13 + 15              ⇒ simplify4x = 28                          x = 28/4x = 7

Answer:

x = 7

Step-by-step explanation:

i’ll give brainlest!

Answers

Answer:

Z = 3

Step-by-step explanation:

if y = 3 then 3 x 2 = 6 subtract that from 9 and u get 3 so therefore z is 3

The equation of a line is given below.
9x - 3y=3
Find the slope and the y-intercept.
Then use them to graph the line.

Answers

sorry i’m not gonna graph it but with this info u easily can

the y intercept is -1
slope is 3/1
final equation is y=3x-1

In Tennessee, the state sales tax rate is 9.25%. A bike costs 129.99, and an electric scooter costs 324.99. Rounded to the nearest cent, how much morr is the tax on the scooter than the tax on the bike​

Answers

Answer:

213.04

Step-by-step explanation:

Multiple both by 1.0925 and then subtract from each other.

Answer:

$18.04

Rounded: $18.00

Step-by-step explanation:

Scooter tax: $30.06

Bike tax: $12.02

Hope this helped!

A rectangular field has an area of 646 square feet. The width of the field is 19 feet. What is the length of he field?

Answers

the length is 34 feet if you divide 646 by 19

If rectangular field has an area of 646 square feet. The width of the field is 19 feet. Then length of the field is 71.77 feet.

What is Area of Rectangle?

The area of Rectangle is length times of width.

Given,

Area of rectangular field is  646 square feet.

width of the field is 19 feet.

We need to find the length of the field.

Area of rectangle=Length×Width

646=Length×19

Divide both sides by 19

Length=646/9

Length=71.77 feet

Hence 71.77 feet is the length of the field.

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Solve the equation. You may find using algebra tiles helpful in solving this problem.
X +3=-X-3

Answers

Answer:

X+3=-X-3

+X    +X

2X+3=-3

    -3   -3

2X=-6

/2    /2

X=-3

Step-by-step explanation:

Answer:

x=--3

Step-by-step explanation:

x+x=-3-3

2x=-6

x=-6/2

x=-3

Elimination method

3x + -3 =6
3x + 2y = 16​

Answers

Answer:

(4,2)

Step-by-step explanation:

hope this answerss

Can I have help on this ixl question

Answers

The answer is 1. The answer is 1.

Answer:

Ion know

Step-by-step explanation:

u tell me

What is the value of the expression "eight more than three times the difference of four and a number" when n =
3?
□44
□19
□17
□11​

Answers

Answer:

11

Step-by-step explanation:

3 (4 - n) + 8

When n = 3:

3 (4 - 3) + 8

3 (1) + 8

3 + 8

11

Answer:

11

Step-by-step explanation:

A bee flies at 6 feet per second directly to a flowerbed from its hive the bee stays at the flowerbed for 17 minutes, and then flies directly back to the hive at 4 feet per second. It is away from the hive for a total of 22 mins

Answers

Answer:

576 feet.

Step-by-step explanation:

5 - 13 = 2 minutes x 60 =120 seconds that the bee spent flying back and forth.

a - Distance = Time x Speed

Time =Distance / Speed

 D / 12  +  D / 8 = 120, solve for D

 

b - D = 576 feet from the hive to the flowerbed.

Can someone please help me with this since it been online I haven't been paying attention I know not smart of me but I will if you explain how this stuff is too confusing and I don't quite understand it.

Answers

Answer:

$252.5

Step-by-step explanation:

45(4.5)+50

202.5+50

=252.5

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