Jordan flipped a coin 218 times. Which of the following would be a good estimate of the number of times the coin landed on heads?
A. 168
B. 104
C. 209
D. 34

Answers

Answer 1

Ans: (1/2)218 = 109

----

Closest to that is 104

Answer 2

Answer:

B. 104

Step-by-step explanation:

It would make the most sense if it were somewhere in the middle since flipping a coin has a 50% chance of being heads.

B. 104 is closest to the absolute middle of 218, therefore, it would be the most accurate.


Related Questions

Functions, f and g are given by f(x)= 3+ cos x and g(x) = 2x, x is a real number. Determine the value of c for which f(g(x))= g(f(x)) where 0 [tex]\leq[/tex]x<2[tex]\pi[/tex]

Answers

Answer:

2 is my answer

Step-by-step explanation:

PLEASE HEEELPPP 15 POINTS PLESSEE

Answers

Answer:

200.96 yd^2

Step-by-step explanation:

Area of a circle = πr^2 where r = radius

radius = diameter/2

radius = 16/2

radius = 8

Area = π(8)^2

Area = π64

Area = 200.96 yd^2
area = 3.14r^2
16 yd / 2 = r = 8

area = 3.14(8)^2
= 3.14(64)
= 200.96 yd^2

one-half of the people at a game wore hats. two-thirds of those people also wore gloves. one-fourth of those people wearing gloves and hats also wore scarves. 25 of the people had hats and scarves but no gloves. One hundred people had only scarves. If there were 1824 people, how many had scarves
Please give answer as soon as possible

Answers

Final Answer: 277 people had scarves.

Step-by-step explanation:

1/2 people wore hats2/3 people wore also wore gloves.1/4 people wore scarves.25 people had hats and scarves. (no gloves)100 people have only scarves.1824 people total

1824 / 2 =  912 (Divide by 2 to get the people wearing hats)

912 / 3 = 304 (subtract 304 to get 2/3)

912-304 = 608

608/4 = 152. (people who wore gloves, hats, and scarves.)

152+100+25= 277

Answer:

1111

Step-by-step explanation:

1111223

Please help ASAP!!!!! I would really appreciate it

Answers

Answer:

(-2,-5)

Step-by-step explanation:

Because his house is in the same quadrant as the city park (quadrant 3) the answer's coordinates will have x=a negative number and y= a negative number. So, the answer will be (-2,-5).

Hope this helps!

This is for my math class

Answers

Answer:

-25 feet

Step-by-step explanation:

We know that the change in altitude for the air balloon is -1500 feet, all within a span of 60 minutes, which then we are asked what is the rate of change.

To find the rate of change, we have to be able to divide a number by both sides that will not give us a decimal or very odd number. To avoid getting a decimal, divide both sides by 60.

-1500/60 = -25

60/60 = 1

So the rate of change would be -25 feet

It would be -25 feet because of how the altitude changes with her time

what are two different ways to solve 257+438

Answers

Answer:

Two ways to solve is to just do column addition or split 200+50+7 and add it to 400+30+8 first add 200+400 = 600, 50+30=80, 7+8 = 15. Add 600+80+15= 695.

Step-by-step explanation:

Answer:

695

Step-by-step explanation:

So say selling a backpack thats used-like new and the original price is $54.00 how much should I set the price at??

Answers

it most be eleven hundred

If it’s used and you’re selling it then probably like 25-35 dollars

Identify the constant of proportionality from the table.

X: 4, 5, 7, 9
Y: 32, 40, 56, 72

Answers

Divide y by x:

32/4 = 8

40/5 = 8

56/7 = 8

72/9 = 8

The constant of proportionality is 8

Answer:

Divide y by x:

32/4 = 8

40/5 = 8

56/7 = 8

72/9 = 8

The constant of proportionality is 8

Step-by-step explanation:

Determine whether each sequence is a geometric sequence. If yes, then state the common ratio.
1, -4, 16, -64, ...

Answers

Answer:

This is a geometric sequence with a common ratio of -4

Step-by-step explanation:

Take the second term and divide by the first term

-4/1 = -4

Take the third term and divide by the second term

16/-4 = -4

Take the fourth term and divide by the third

-64/16 = -4

This is a geometric sequence with a common ratio of -4

-4 is multiplied each time

1x-4= -4
-4x-4= 16
16x-4= -64

Step by step on how to do this plz

Answers

The answer is 512!!!!!!

What is equivalent to the expression 5x - 4 - 9x +7

A. 4x + 3
B. -4x - 3
C. -4x + 3
D. -x
E. x

Answers

5x - 4 -9x + 7
simplify
5x - 9x = -4x

-4 + 7 = 3

Answer: -4x - 3
The answer is c.

5x-9x=-4x
-4+7=3
There for the answer would be -4x+3

12(43)

5 (88)

8 (63)

7 (28)

Please help me i tried to do this but I really don't get this can somebody help? plsssssssssssssssssssssssssssssss(sorry for spam)

Answers

I’m not entirely sure how to answer this without a word problem, but from what I see, all you have to do is multiply the two numbers.
12 x 43= 516
5 x 88 = 440
8x 63= 504
7 x 28= 196
Usually, when you see a number followed by another number in parentheses, like here, that means to multiply.
12(43)=516
5(88)=440
8(63)=504
7(28)=196

Help, I need somebody… HELP!!!!!

Answers

It’s times 3……………………..
They are all getting multiplied by 3
Hope I helped

help plz its due tomorrow​

Answers

Answer:

Go to Slader.com and select the grade lvl and click the page number

Step-by-step explanation:

hope this helps

Slader.com

Step-by-step explanation:

Mr. Jacobs is going to make a histogram of the test scores from the last math test he gave. He plans to first organize the data into a stem-and-leaf plot and then make the histogram from the stem-and-leaf plot. The test scores are listed below.

79, 82, 65, 61, 94, 97, 84, 77, 89, 91, 90, 83, 99, 71, 68, 77, 87, 85

How many bars will his histogram have?

3
4
5
6

Answers

I think the answer to this question is 4
I would say the answer is 4

A map is drawn to a scale of 1 : 20 000.

The actual area of the grassland is 2.5 hectares. Calculate the area on the map, giving your answer in square centimetres. ( 1 hectare = 10 000 m² )

pls help thank you:>​

Answers

Answer:

0.625 cm²

Step-by-step explanation:

Scale factor:

k = 1/20000

When applied to the area consider k² as a scale factor.

The actual area:

2.5 hectares = 25000 m² = 25000*100² cm² = 250000000 cm²

The area on the map:

250000000 * (1/20000)² = 0.625 cm²

PLEASE HELP ME WITH THIS DS-9JF-9EJFWEF

Answers

The person above had the right answer, I checked
It’s the second choice :)

Determine the rule for the number pattern and use it to find the missing values.

Which of the following statements are true about the pattern above?
Select all that are true.
3,7,15 , , , ,....
The 10th term in the pattern will be 30.
Each term in the pattern will be a multiple of 3.
Each term in the pattern will be prime.
Each term in the pattern will be odd.

Answers

9514 1404 393

Answer:

  Each term in the pattern will be odd.

Step-by-step explanation:

The first differences are ...

  7 -3 = 4

  15 -7 = 8

These differ by 4, and the second is double the first.

These relationships between the first differences give rise to two possible sequences: a) an exponential sequence; b) a quadratic sequence. We can use a graphing calculator to find the coefficients of each of the patterns.

Exponential Sequence

  a[n] = 2·2^n -1

  The sequence is 3, 7, 15, 31, 63, 127, 255, 511, 1023, 2047.

  The 10th term is 2047.

Quadratic Sequence

  a[n] = 2n^2 -2n +3

  The sequence is 3, 7, 15, 27, 43, 63, 87, 115, 147, 183.

  The 10th term is 183.

__

Based on the above, the only thing we can say about these sequences is that they are all odd numbers.

Clearly, the 10th term is not 30. 7 is not a multiple of 3, so that observation fails immediately. 15 is not prime, so that observation also fails immediately.

_____

Additional comment

The differences of first differences are called "second differences". The differences of those are "third differences". and so on. If you keep taking differences of a sequence described by a polynomial, the n-th differences being constant means the sequence is described by an n-th degree polynomial.

Here, if we assume the 2nd differences are constant at 4, then the sequence is described by a 2nd-degree polynomial. (Similarly, constant first-differences are described by a 1st-degree polynomial--a linear function.)

If sequential levels of differences are all exponential sequences, then the sequence itself is an exponential sequence. As here, it may have a vertical offset. The base of the exponential will be the common ratio of the differences. (Here, the first differences have a ratio of 8/4 = 2, so the sequence could be exponential with a base of 2.)

Each term in the pattern will be odd

Please help me asap! I will give brainly!

Answers

Answer:

$26

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

3 raffle tickets = $2 certificate

39 raffle tickets = ?

39 divide 3 = 13

13 * 2 = 26

39 raffle tickets = $26 certificate

Express each of the following decimals as a percentage
0.78
solution for class 7

Answers

Answer:

78%

Step-by-step explanation:

To represent decimals as percentage, multiply by 100

0.78 x 100 = 78%

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

In this example we have: 0.78 × 100 = 78% (answer). ➥ The ease way: 1) Move the decimal point two places to the right: 0.78 → 7.8 → 78.

Step-by-step explanation:

you answer is 78%

Valeria bought a 9-foot length of ribbon from which she wants to cut 3-foot pieces. How many pieces can she cut? What will be the length of the leftover piece of ribbon?
help plz​

Answers

Answer:

She can cut 3 pieces of ribbon.

None will be left over.

She will have 3 pieces and no left over ribbon

9/3 = 3 with no remainder/leftover

can someone answer this QUICKLY and make it make SENSE please

Answers

Answer:

3x6, (3)(6), 6+6+6

Step-by-step explanation:

The are asking which equation matches the situation,...

3 tables, 6 chairs per table = 3 x 6chairs = 18 chairs

3x6

(3)(6)

6+6+6

What they want you to do is put that equation 3x6 in the "Represent the Situation" box and the rest in the "Do not represent Situation" one

I need the same one

Express each of the following decimals as a percentage
1.35
solution for class 7

Answers

Answer:

135%

Step-by-step explanation:

To represent a decimal to percentage, multiply by 100

1.35 x 100 = 135

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

the answer would be 135%

solve for W

14/W=26/39

Answers

Answer:

I think the answer is 21

Step-by-step explanation:

The answer is 21 because we can simple reduce 26/39 = 2/3. And now that you have done that all we need to do is find what 14/w = 2/3 this is quite simple as we just have to mutiply the 3*7 to get 21 as your answer. I don't know if this is correct or not but this is my best answer.

Answer:

21

Step-by-step explanation:

14 : w = 26 : 39

w = 14 * 39 : 26

w = 21

3. Solve for m:
-5m + 3 - 2m = -7m + 4 + m

A. M=1/2
B. M=-1/2
C. M=-1
D. M= 1

Answers

Answer:

c

Step-by-step explanation:

-7m+3=-7m+m+4

m=3-4

m=-1

-5m+3-2m=-7m+4+m
-5m-2m+7m-m=4-3
-1m=1
m= -1

Please help me with this.

Answers

Answer:

h(3)=20

Step-by-step explanation:

h(3)=h(3-2)*h(3-1)=h(1)*h(2)=-10*-2=20

Answer:

20

Step-by-step explanation:

h(1) = -10

h(2) = -2

h(n) = h(n-2) * h(n-1)

Let n=3

h(3) = h(3-2) * h(3-1)

      = h(1) * h(2)

       = -10 * -2

       = 20

What evidence supports a conservation law?

Carbon dioxide becomes glucose and oxygen during photosynthesis.
Hydrogen is made from the breakdown of carbon dioxide during photosynthesis.
Chlorophyll converts sunlight to chemical energy during photosynthesis.
Glucose and oxygen become carbon dioxide and water during photosynthesis.

Answers

Answer:

Chlorophyll converts sunlight to chemical energy during photosynthesis.

Step-by-step explanation:

Three forms of energy come into play in the functioning of an ecosystem:

* the electromagnetic radiation of short-wavelength  (light),

* the electromagnetic radiation of long-wavelength  (infrared: heat),

* chemical energy (in the form of organic molecules: sugars, etc.).

The conversion of light energy into chemical energy takes place in  plants: it's photosynthesis.

Answer:

Carbon dioxide react with water and becomes glucose and oxygen during photosynthesis.

Step-by-step explanation:

6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, form glucose and oxygen.( during photosynthesis carbon dioxide and H2O in presence of sunlight and chlorophyll form glucose and oxygen)

Which expression is equivalent to _?

Answers

Answer:

2^-1

Step-by-step explanation:

2^2 *2 / 2^4

We know that 2^2 * 2 = 2^2 *2^1

a^b*a*c = a^(b+c)  so 2^2*2*1 = 2^(2+1)+ 2^3

2^3 / 2^4

We know that a^b / a^c = a^(b-c)

2^3 /2^4 = 2^(3-4) =2^-1

The equivalent of the given expression 2² × (2/2⁴) when simplified is; 2⁻¹

How to simplify exponents?

We are given the exponents expression;

2² × (2/2⁴)

Let us first multiply out the numerator to get;

2² × 2 = 2³

Thus, our overall expression is;

2³/2⁴

According to laws of exponents;

a^(b)/a^(c) = a^(b-c)

Thus;

2³/2⁴ = 2³⁻⁴

⇒ 2⁻¹

Read more about Exponents at; https://brainly.com/question/11761858

Choose a number line to model the following situation:

The temperature outside rose 15° and then dropped 15°. (4 points)

a
A vertical number line is shown with labels at 0 and 15. A red arrow (labeled dropped 15 degrees) begins at 15 and ends at 0. A purple arrow (labeled rose 15 degrees) begins at 0 and ends at 15.

b
A vertical number line is shown with labels at negative 15, 0, and 15. A red arrow (labeled dropped 15 degrees) begins at 0 and ends at negative 15. A purple arrow (labeled rose 15 degrees) begins at 0 and ends at 15.

c
A vertical number line is shown with labels at negative 15, 0, and 15. A red arrow (labeled dropped 15 degrees) begins at 15 and ends at 0. A purple arrow (labeled rose 15 degrees) begins at negative 15 and ends at 0.

d
A vertical number line is shown with labels at 0, negative 15, and negative 30. A red arrow (labeled dropped 15 degrees) begins at 0 and ends at negative 15. A purple arrow (labeled rose 15 degrees) begins at negative 15 and ends at negative 30.

Answers

Answer: A

Step-by-step explanation: It is showing that the temp Atari is raising by 15 ( +15) then dropping by 15 (-15)

Hope this Helps :))

Hxjs sis siss is ais sis sis sisw is

PLEASE HELP MEEEEeeee

Answers

Answer:

D. 2^7

Step-by-step explanation:

2^3 x 2^4 would equal 128. So, if you do the math for all of them:

A isn't correct because it equals 16.

B isn't correct because it equals 4096.

C isn't correct because it equals 16384.

D is correct because 2^7 is 128.

Hope this helped!

The answer with be D
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