A coin has heads on one side and tails on the other. The coin is tossed 12 times and lands heads up 4 times. Which best describes what happens when the number of trials increases significantly?
A. The observed frequency of landing heads up gets closer to the expected
frequency based on the probability of the coin landing heads up.
B. The observed frequency of landing heads up will always be 1/3 of the number of
tosses.
C. The expected frequency based on the probability of the coin landing heads up
gets closer.
D. The expected frequency based on the probability of the coin landing heads up
gets closer to the observed frequency.

Answer:

166

Step-by-step explanation:

Answer:

I think ur answer luv would be c.)166

Step-by-step explanation:

hope this helps

Answer:

x = 4

Step-by-step explanation:

4x + 2 = 5x -6

4x -5x = 6-2

-x = 4

x = 4

Answer:

x=8

Step-by-step explanation:

4x+2=5x-6  subtract both sides by 4x

2=5x-4x-6     simplify

2=x-6        add 6 to both sides

6+2=x        simplify

8=x

Answer:

False

Hope this helps and mark 5 stars and brainlliest please.

Step-by-step explanation:

Answer: false

Step-by-step explanation:

It’s 4:3 and not 4:7 because the 7 was never mentioned in the problem

[tex]\bold{0.6x = 2.8}[/tex]

Answer:

The variable is the time it takes to get to the mountains.  

Step-by-step explanation:

It is time because traffic can cause you to get to your destination longer

Answer:

2.85

Step-by-step explanation:

Amount Saved = $2.85 (answer). In other words, a 5% discount for a item with original price of $57 is equal to $2.85 (Amount Saved).

Step-by-step explanation:

I dont like giving the answers to math questions, but the way in which your suppose to answer this is by finding the original price before the discount. To do this, turn the percent into a decimal (for five percent, 0.5) and divide the original price. This number should give you the discounted price! hope this helps you!

Answer:

k^2-12k+20

=k^2-10k-2k+20

=k(k-10)-2(k-10)

=(k-2)(k-10)

Answer: x= 1.75

Step-by-step explanation:

3.5(2.25+x)= 14 *distribute 3.5 into parentheses*

(7.875+ 3.5x)=14 *subtract 7.875 from both sides*

3.5x= 6.125 *divide*

Your answer is 1.75.

the answer is 1 i believe?

what is the shading

Step-by-step explanation:

???????

Answer:

3/8

Step-by-step explanation:

Answer: answer is 12

Step-by-step explanation:

Answer:

Step-by-step explanation:

Gather information like your principal loan amount, interest rate and total number of months or years that you'll be paying the loan.

Calculate your total interest by using this formula: Principal Loan Amount x Interest Rate x Time (aka Number of Years in Term) = Interest.

Answer:

k=3 (3)x2+5=11

Hope this helps you and good luck :)

Step-by-step explanation:

Answer:

(4y+1)(2y+3)

Explanation:

Factor 8y^2 + 14y + 3

8y^2 + 14y + 3

= (4y + 1)(2y + 3)

Answer:

Salt

Step-by-step explanation:

At its peak, Ghana was chiefly bartering gold, ivory, and slaves for salt from Arabs and horses, cloth, swords, and books from North Africans and Europeans. As salt was worth its weight in gold, and gold was so abundant in the kingdom, Ghana achieved much of its wealth through trade with the Arabs.

Hope this helps!

Brain-List?

Answer:

3

Step-by-step explanation:

I divided 12 by 4 and got 3, so i then divided 9 by 3 and got 3 :)

(If this is wrong pls correct me)

Step-by-step explanation:

2x-7=-3

2x=-3+7

2x=4

2x/2=4/2

x=2

but what is ayudaaaaa???

Answer: A. (4x+3) (x-2) = 4x^2-5x-6

Step-by-step explanation:

Answer:

24?

Step-by-step explanation:

Answer:

A = $80

Step-by-step explanation:

A = 240 - 20w

B = 320 - 30w

Equate both equations

240 - 20w = 320 - 30w

Collect like terms

240 - 320 = -30w + 20w

-80 = -10w

Divide both sides by -10

w = -80/-10

w = 8

Substitute w into equation A

A = 240 - 20w

= 240 - 20(8)

= 240 - 160

= 80

A = $80

Answer:

180*-90*=90*

Step-by-step explanation:

I think it would be 90*

Answer:

5x+4x=180(Being parallel lines)

9x=180

x=180/9

x=20

Answer:

x1 = 2 -[tex]\sqrt{5}[/tex]

x2= 2 +[tex]\sqrt{5}[/tex]

Step-by-step explanation:

x/4 + 6 = 7 + 1/4x

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

x^2 - 1 = 4x

x^2 - 4x -1 = 0

x= (4+[tex]\sqrt{20}[/tex])/2 = 2 -[tex]\sqrt{5}[/tex]

x= 2 +[tex]\sqrt{5}[/tex]

Answer:

f(x) = 4 for the values 2 and -2.

Step-by-step explanation:

Given

y = { x+6      x < -2

       x²        -2 ≤ x ≤ 3

      3x+1      x > 3 }

To determine

For which x-values is f(x) = 4

It is clear that:

The portion of the function f(x) = x² has the interval  -2 ≤ x ≤ 3

Now, if we enter x = 2 or x = -2 in f(x) = x² from the interval -2 ≤ x ≤ 3 we get the output 4.

i.e.

at x = -2,

f(-2) = (-2)² = 4

also

at x = 2,

f(2) = (2)² = 4

Therefore, f(x) = 4 for the values 2 and -2.

Answer:#3

Step-by-step explanation:

Answer:

4/5

Step-by-step explanation:

solved it

Answer:

4/5 = 0.8

Step-by-step explanation:

u can use

wolfram alpha to help u with stuff like that

Answer:

area of circular pen=πr²=3.14×15²=706.5ft²

706.5ft²of grass can goat graze in the pen.

Answer:

c. the lines are the same

Step-by-step explanation:

A system of linear equations has an infinite number of solutions because the lines are the same. The correct answer would be an option (C).

A linear equation is defined as an equation in which the highest power of the variable is always one.

If a system of linear equations has an infinite number of solutions, it means that the equations are equivalent and represent the same line in the coordinate plane.

Therefore, the graphs of the two equations will be the same line, meaning that the lines are coincident. They won't intersect at one point, nor will they be parallel, as the definition of an infinite number of solutions is that they are the same line. And they can be graphed, as they represent a single line in the coordinate plane.

Hence, the correct answer would be option (C).

Learn more about the Linear equations here:

https://brainly.com/question/13738061

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