A survey finds that 110 people ate breakfast and 30 people skipped breakfast. Of those who ate
breakfast, 10 people felt tired. Of those who skipped breakfast, 10 people felt tired. Make a
two-way table that shows the conditional relative frequencies based on the breakfast totals.

Answers

Answer 1

Here is the two-way table :

Felt tired        Did not feel tired               Total

Ate breakfast                    0.0714                0.7142                           0.7857

Did not eat breakfast        0.0714                0.1428                          0.2143                                  

Total                                  0.1428                 0.8572                                   1  

What is the two way table?

A two-way table represents the frequency of dataset by arranging the dataset into a table made up of rows and columns. A conditional relative frequency is the ratio of the frequency of a class to the total frequency.  

People who ate breakfast and did not feel tired = 110 - 10 = 100

People who did not breakfast and did not feel tired = 30 - 10 = 20

                                              Felt tired        Did not feel tired               Total

Ate breakfast                          10                     100                                    110

Did not eat breakfast              10                      20                                     30

Total                                          20                    130                                     140

                                       Felt tired        Did not feel tired           Total

Ate breakfast                   10 / 140           100 / 140                       110 / 140

Did not eat breakfast      10  / 140          20 / 140                         30 / 140

Total                                20 / 140            130 / 140                         140 / 140

                                         Felt tired        Did not feel tired               Total

Ate breakfast                    0.0714                0.7142                           0.7857

Did not eat breakfast        0.0714                0.1428                          0.2143                                  

Total                                  0.1428                 0.8572                                   1  

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Related Questions


Solve each equation. Round to the nearest ten-thousandth. Check your answers.
2x=3

Answers

After solving the equation, x = 3/2 is the value of x in 2x = 3.

⇒ 2x = 3

x = 3/2

How to solve an equation?

To solve linear equations, utilize the steps that are provided below.

Remove parentheses from each side of the equation and combine similar terms to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.The common denominator can be multiplied by each side of the equation to eliminate fractions.

Lets take an example of solve z for 7z – (3z – 4) = 12

Here is no multiplication or division, so this will be easy to solve

⇒ 7z – (3z – 4) = 12

⇒ 7z – 3z + 4 = 12

⇒ 4z = 12 – 4

⇒ 4z = 8

⇒ z = 8/4

⇒ z = 2

See, that was so simple, using the mentioned methods, every linear equation can be solved easily.

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Me ayudan urgente por favor y gracias

Answers

The result of the linear expression [tex]5-\frac{t}{3}[/tex] is 1.

What is linear expression?

An algebraic expression that uses either a constant or a variable raised to the first power for each term is known as a linear expression. This means that none of the exponents can be greater than 1.

Given [tex]5-\frac{t}{3}[/tex]

Also given that t = 12

Substitute the value of t and we get

[tex]5-\frac{12}{3}\\=5-4\\=1[/tex]

Therefore, the result of the linear expression [tex]5-\frac{t}{3}[/tex] is 1.

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what 30x30x1,000 bydb3yuehwu

Answers

The answer is 900000

-64-32+83-13???!!!!

Answers

Answer:20

Step-by-step explanation:

-62-32=-96+83=-13-13=-26

408 x 291 show work pls

Answers

Answer: 118728

Step-by-step explanation:

You can just simply find this answer using a calculator.

408x291=118,728
work shown in picture

what is 3 (3/8) * -7/3

Answers

A = -2.625, i hope this helps, please mark as brainliest!

Answer:

-21/8

Step-by-step explanation:

3 (3/8) * -7/3

= 9/8 * -7/3

= 3/8 * -7

= -21/8

Graham drove 423 miles in 13 hours.
a. How many miles did he drive in one hour?
Bron
b. How many hours did he take to drive one mile?

Answers

Graham drove 32.58 miles in one hour and it took 1.84 minutes to drive a mile

Miles Graham drove in 13 hours = 423 miles

Unitary method: A single unit's value can be determined from the values of multiple units, and multiple units' values can be determined from the values of single units using the unitary technique. It is a technique that we employ for the majority of math calculations.

Part a:

Miles driven in one hour = Total miles driven/Total no. of hours taken

= 423/13 = 32.58 miles

Part b:

Hours took to drive a mile = Total no. of hours taken/ Total miles driven

= 13/423  = 0.030 hours or 1.84 minutes

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need help with this question, pls

Answers

Answer: y > 0

Explanation: you can identify the range or limit of this equation by either looking at the graph or understanding the equation logically.

Looking at the graph, you can see to the left of the Y axis, the graph is approaching but not touching Y = 0. This means that Y = 0 is a limit to this equation and that the graph will not cross this line.

Or we can think about it logically. If we keep multiplying by 2 over and over, a value will keep getting bigger to infinity. That's the right side of this graph. Then for x < 0, that represents dividing by 2 over and over. That value will only ever get smaller and smaller. But never reach zero. It's like folding a paper in half forever.


How long would it take to double your principal in an account that pavs 6.5 % annual interest compounded continuously?

Answers

It will take 4.63 years to double the principal.

The formula for calculating the amount (A) on a principal (P) invested at the rate of r%, compounded continuously after t years is-

A = P[tex]e^{rt}[/tex]

Here r = 6.5%

= 0.065

Let the principal amount be P,

then the amount after t years = 2P

A = P[tex]e^{rt}[/tex]

2P = P[tex]e^{rt}[/tex]

2P/P = [tex]e^{rt}[/tex]

2 = [tex]e^{0.065t}[/tex]

Taking log on both sides-

Log 2 = log [tex]e^{0.065t}[/tex]

Log 2 = 0.065t log e

Log 2 = 0.065t

0.65t = Log 2t

= log 2/ 0.065t

= 0.301/ 0.065 t

= 4.63

Thus, it will take 4.63 years to double the principal.

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the height of a triangle is twice its base the area is 144cm³ find the base​

Answers

Answer:

12

Step-by-step explanation:

Area of a triangle = 1/2*b*h

[tex]144=(\frac{1}{2})*(2x)*(x)\\12=x[/tex]

The length of a rectangular garden is 5 feet less than twice its width. If the total distance around the garden is 44 feet, what are the length and width of the garden?

Answers

Answer: 78

Step-by-step explanation: multiply 44 by 2 because there are two sides on the rectangle and then you add 5 and 5 because yet again there are two sides so when you get your answer subtract 10 from the 88 and then you get 78 there is your explanation and equation

Rectangle with perimeter 44 ft has its length and breadth 13 ft and 9 ft respectively.

Dimension of rectangle : 13 × 9

Given, that perimeter of rectangle is 44 ft .

Now, perimeter of rectangle is given by:

P = 2(l + b)

l = Length of rectangle .

b = Breadth of rectangle.

Let the breadth of rectangle be 'x' m.

Then length will be (2x -5) ft.

Substitute the values in the perimeter formula,

[tex]44 = 2(x + 2x -5)\\22 = 3x -5\\x = 9[/tex]

Thus the breadth of rectangle is 9 ft .

Length of rectangle is 5 ft less than twice its breadth.

Length = 2(9) - 5

Length = 13 .

Therefore the dimensions of rectangle is 13 × 9.

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1/4(4)-5(6)-2 solve step by step.

Answers

Answer:

[tex] \rightarrow \sf \: −31[/tex]

Step-by-step explanation:

[tex] \rightarrow \sf \frac{1}{4} (4)-5(6)-2[/tex]

[tex] \rightarrow \sf \: \frac{1}{4} \times \frac{4}{1} - 30 - 2[/tex]

[tex] \rightarrow \sf \: 1 - 30 - 2[/tex]

[tex] \rightarrow \sf \: - 31[/tex]


Find the amount in a continuously compounded account for the given conditions.
principal: $ 6000 ; annual interest rate: 6.8 % ; time: 10 years

Answers

The amount after 10 years is $11,842.43

In continuous compounding the number of times by which compounding occurs tends to infinity.

In order to calculate the amount use the following formula

A= Pe^rt

where P represents the initial amount, e is the mathematical constant having value 2.7182, r is the rate of interest and t is the time period

Here the principal amount is $6000, r is 6.8 and time period t is 10 years

A = $6000 x 2.718⁽¹⁰ ˣ ⁶·⁸ %⁾

A = 6000 x 2.718⁽¹⁰ ˣ ⁶·⁸÷¹⁰⁰⁾  

A = 6000 x 2.718 x 0.68

A = $ 11,842.43

Therefore the total amount calculated after 10 years is $ 11,842.43

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HELP ILL GIVE U A LOT OF POINTS

Answers

Answer/Step-by-step explanation:

f(6) = 3x² - 5

f(6) = 3(6)² - 5

f(6) = 3(36) - 5

f(6) = 108 - 5

f(6) = 103

(x, y) = (6, 103)

I hope this helps!

Seven times the sum of 23 and a number

Answers

Answer: 161+7n

Explanation: Let the number be n.

7(23+n)

=161+7n

Hope this helps you! Have a great day!!!!! :) :D


Simplify. 4√32 + 4√128

Answers

The answer after simplification is 48[tex]\sqrt{2}[/tex]

We are required to simplify two values in square root form

Given values are :

4[tex]\sqrt{32}[/tex]+4[tex]\sqrt{128}[/tex]

4([tex]\sqrt{32}[/tex]+[tex]\sqrt{128)}[/tex]

Now we know that

32= [tex]2^{5}[/tex]

128=[tex]2^{7}[/tex]

Putting these values inside the square root,

we know that square root is to the power 1/2

our equation becomes

4([tex]\sqrt{2^{5} } +\sqrt{2^7[/tex])

removing the square root,
4([tex]2^{5/2}+2^{7/2}[/tex])

Now we know that 4 is 2 to the power 2 , and taking 2^5/2 as common, we get:

[tex]2^{2}*2^{5/2}(1+2^{2/2})[/tex]

16[tex]\sqrt{2}[/tex](3)

=48[tex]\sqrt{2}[/tex]

The answer after simplification is 48[tex]\sqrt{2}[/tex]

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The question is 0.65 into a fraction can anyone help me figure this out?

Answers

I gotchu it is 420/69

Answer:

If 0.65 is a decimal, then as a fraction it would be 65/100. This can be simplified though. 65 and 100 are both divisble by 5.

100 divided by 5 is 20 and 65 divided by 5 is 13. This is as simplified as it can go, so the answer is 13/20.

For clarification the answer is

13/20

Step-by-step explanation:

Colton is 1.55 meters tall. At 1 p.m., he measures the length of a tree's shadow to be 44.35 meters. He stands 39 meters away from the tree, so that the tip of his shadow meets the tip of the tree's shadow. Find the height of the tree to the nearest hundredth of a meter.

Answers

If Colton is 1.55 meters tall. At 1 p.m., he measures the length of a tree's shadow to be 44.35 meters. the height of the tree to the nearest hundredth of a meter. is 12.85 meters.

Height

First step is to find the distance that he is horizontally from the top of the shadow

Distance = 44.35 meters - 39 meters

Distance = 5.35 meters

Second step is to make use of equal proportion and find the height

5.35/ 1.55 = 44.35/x

5.35x = 1.55 × 44.35

x=  1.55 × 44.35 /5.35

x= 12.849

x= 12.85 meters (Approximately)

Therefore If Colton is 1.55 meters tall. At 1 p.m., he measures the length of a tree's shadow to be 44.35 meters. the height of the tree to the nearest hundredth of a meter. is 12.85 meters.

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fill in the boxes please (gradients)
pls help giving brainliest answers!! :)

Answers

Answer:

see explanation

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the gradient and c the y- intercept )

y = 7x , that is y = 7x + 0 ← in slope-intercept form

with gradient 7 and y- intercept (0, 0 )

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

y = 6x - 8 ← is in slope- intercept form

with gradient 6 and y- intercept (0, - 8 )

10) Your friend has a play tepee. The tepee
has a radius of 4 feet and a height of 6
feet. What is the volume of the tepee?

Answers

The volume of the tepee is 100.48 feet³

The formula for the volume of tepee is same as the volume of cone which is given as :

               V = 1/3 πr²h        (1)

where V = volume

           r = radius of the tepee

           h = height of the tepee

According to the question we have been given that

            radius = 4 feet

             height = 6 feet

Putting the required values in equation (1) we get

                V = 1/3 π (4)²(6)

                   = 1/3 (3.14)(96)

                   = 301.44/3

                   = 100.48 feet³

Hence the volume of the tepee is  100.48 feet³

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Select the expression that matches the scenario correctly. On January 1, the high temperature was 81 F in Kona, Hawaii the low temperature was -29 F in Barrow, Alaska. What was the difference between the two temperatures?
A. -29 + 81
B. |89 - 21|
C. |81 - (-29)|
D. 36 divided 6

Answers

Option c is correct i.e., |81 - ( -29)|

On January 1, the high temperature was 81 F in Kona and the low temperature was - 29 F in Barrow.

We have to find the difference between the two temperatures.

So the difference between is

    = 81 - (- 29)

    = 81 + 29

    = 110

Therefore the difference the two temperatures is 110.

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What are the domain and range of the function the quantity of x squared minus 4 x minus 12, all over x plus 2? domain is x is all real numbers where x does not equal negative 2 comma range is y is all real numbers where y does not equal negative 8 domain is x is all real numbers where x does not equal 4 comma range is y is all real numbers where y does not equal negative 2 domain is x is all real numbers where x does not equal 2 comma range is y is all real numbers where y does not equal 8 domain is x is all real numbers where x does not equal negative 4 comma range is y is all real numbers where y does not equal 2

Answers

The domain is all real numbers where x does not equal -2 and the range is all real numbers where f(x) does not equal -8

What is the domain and the range of a function?

The domain of the function is the set of input values of the graph while the range of a function is the set of output values of the graph.

How to determine the domain and the range of the function?

The given parameter is:

f(x) = (x^2 - 4x - 12)/(x + 2)

Based on the definition above, the range of a function is the set of y values of the graph while the domain is the set of x values of the graph

Set the denominator not equal to 0

So, we have

x + 2 ≠ 0

Evaluate

x ≠ -2

This means that the domain is all real numbers where x does not equal -2

For the range, we use a graphing calculator

From the graphing calculator, we have

f(x) ≠ -8

This means that the range is all real numbers where f(x) does not equal -8

Hence, the domain is all real numbers where x does not equal -2 and the range is all real numbers where f(x) does not equal -8

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Complete question

What are the domain and range of the function f(x) = (x^2 - 4x - 12)/(x + 2)

+
Using Double Numberlines for Ratios
Use the double numberline to solve the problems.
1)
At a school fundraiser for every 6 boxes of
chocolate sold you earn 4 points. If you were
to sell 42 boxes, how many points would you
have earned?
boxes
points
Name:
1.
M
Answers

Answers

Answer:

28 points

Step-by-step explanation:

HELP HELP HELP HELP HELPPPPPPPPPPPPPPPP!!!!!!!!!!

Answers

x=3.4

Im writing this bc the app says the answer is too short

Three orders are placed at a sandwich shop. Four sandwiches, two beverages, and
one salad costs $40; two sandwiches, one beverage, and two salads costs $26; and
three sandwiches, three beverages, and two salads costs $38. How much does each
item cost?

Answers

The respective prices are given below as

The price of the sandwich is 20/3 dollars.

The salad may be purchased for a price of $16/3.

There is a fee of $2 for the drinks.

How can you build equations that are simultaneous?

Let's say that the price of the sandwich is x.

Allow the price of salad to equal y.

Allow the price of drinks to equal z.

The new total for this meal is $46. It includes three sandwiches, three beers, and two salads. Thus;

3x + 3y + 2z = 40 ——- (eq 1)

The price of $29 covers two sandwiches, two drinks, and one salad.

Thus;

2x + 2y + z = 26 ——-(eq 2)

It will cost you $54 for four sandwiches, one drinks, and three salads. Thus;

4x + y + 3z = 38 ———-(eq 3)

The following are the results of concurrently solving the three equations:

x = 20/3

y = 16/3

z = 2

Therefore, the following is how much each item costs:

There is a charge of $20/3 for the sandwich.

The salad may be purchased for a price of $ 16/3.

There is a fee of $2 for the drinks.

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Y=-4x-2 fill in the table using this function rule

Answers

Answer:
2
-2
-6
-10

Explanation:
You can solve for y by substituting x in the equation with the given value. So, for the first one of x = -1, the equation becomes

Y = -4(-1) - 2
Which simplifies to
Y = 4 - 2 = 2

The endpoints of CD are C(-8, -1) and D(2,4). Find the coordinates of midpoint M

Answers

Answer:

M(-3;3/2)

Step-by-step explanation:

substitute in this formula of finding midpoint coordinate:M(x1+x2÷2;y1+y2÷2)

a book weighs 4 3/8 pounds. a store needs to mail 5 copies of the book.
create an equation to find how many pounds the books weigh in all.

Answers

Equation: 4 3/8 • 5

Answer: 21 7/8 lbs

Write an inequality that represents the graph.

A number line from negative 0 to 5. There are 9 evenly spaced marks between negative 0 and 5. The number line is shaded left of a closed circle at negative 4.5.
Inequality:

Answers

Answer: x  ≤ 4.5

Step-by-step explanation:

Since the inequality goes left and has a closed circle it would be x  ≤ 4.5

Find the greatest integer that is less than the value of the logarithm. Use your calculator to check your answers.
log 5

Answers

We need to know about logarithm to solve this problem. The greatest integer that is less than the value of log 5 is 0.

Logarithm is the exponent that is raised to a base to get a certain number. There are a few rules of algorithm, log a+ log b can be written as log ab, log a -log b can be written as log a/b, when a number whose logarithm is being calculated is raised to a certain power then the power can be directly multiplied to the log itself. Logarithm when written as log has a base of 10, the logarithm of a number that is same as it's base is always 1, the log of 1 is always zero, because any nonzero number raised to 0 is 1.We will find the value of log 5 first and then choose the nearest integer that is less than log 5.

log 5=log 10/2 =log 10-log 2=1-0.30=0.7

Therefore the greatest integer that is less than the value of log 5 is 0.

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