What is the measure of arc AD?

Angle ABD measures (4x + 10). Angle ACD measures

(5x - 2)

GO

Answers

Answer 1

Answer:

116°

Step-by-step explanation:

Given that :

∠ ABD measures (4x + 10)

∠ ACD measures  (5x - 2)

Then

∠ABD = ∠ACD  ( rule : angle by same chord AD )

∠ABD =   (4x + 10)°

∠ACD =   (5x - 2)°

so we can as well say that :

(4x + 10)° = (5x - 2)°

4x - x = -10 -2

- x = - 12

x   = 12

∠ABD = (4x + 10)°

= ( 4 × 12 + 10)°

= 58°

∠ACD = (5x - 2)°

= ( 5 * 12 - 2)°

= 58°

∠AOD = 2∠ABD = 2∠ACD   ( since angle by arc AD at  center is  twice the  angle by same arc AC in other arc segment)

 ∠AOD =  2 × 58°

∠AOD = 116°

Measure of arc AD = 116°


Related Questions

What is the value of the expression below?
(121/4)4

Answers

Answer:

121

Step-by-step explanation:

Answer:

if the 1/4 is supposed to be small and above the 12, the answer should be 12

Step-by-step explanation:

test

Use what you have learned about filing income taxes to complete these sentences.

If a citizen pays too much in taxes throughout the year, then after filing a tax return, he or she will receive a .

Employers supply a each January to help citizens file their tax returns.

Taxes returns can by filed either by mail or


Answer: refund, w-2, online

Answers

Answer:

See Explanation

Step-by-step explanation:

The W-2 form is a form which an employer must send to an employee and the Internal Revenue Service (IRS) at the end of each year.  Every January, the employee should receive a Form W-2 Wage and Tax Statement from his/her employer. The contents of this form are the amount of money made by the employee during the previous year and how much was paid as tax.

Therefore, Employers supply a w-2 each January to help citizens file their tax returns.

When a citizen gets their W-2 form for the previous year, they can use it to decide if they qualify for a tax refund which could be in cash or used towards the next years' tax.

If a citizen pays too much in taxes throughout the year, then after filing a tax return, he or she will receive a refund.

Finally,

Taxes returns can by filed either by mail or online.

Answer:

1. refund

2. w-2

3. online

−15x + 60 ≤ 105 AND 14x + 11 ≤ −31

Answers

Answer:

X=-3

Step-by-step explanation:

A major traffic problem in the Greater Cincinnati area involves traffic attempting to cross the Ohio River from Cincinnati to Kentucky using Interstate 75. Let us assume that the probability of no traffic delay in one period, given no traffic delay in the preceding period, is 0.85 and that the probability of finding a traffic delay in one period, given a delay in the preceding period, is 0.75. Traffic is classified as having either a delay or a no-delay state, and the period considered is 30 minutes.

a. Assume that you are a motorist entering the traffic system and receive a radio report of a traffic delay. What is the probability that for the next 60 minutes (two time periods) the system will be in the delay state? Note that this result is the probability of being in the delay state for two consecutive periods.

b. What is the probability that in the long run the traffic will not be in the delay state?

c. An important assumption of the Markov process models presented in this chapter has been the constant or stationary transition probabilities as the system operates in the future. Do you believe this assumption should be questioned for this traffic problem? Explain.

Answers

Answer:

Check the explanation

Step-by-step explanation:

First define the below events

Delayt : Traffic delay in current period

Delayt-1 : Traffic delay in preceding period

No-Delayt : No traffic delay in current period

No-Delayt-1 : No traffic delay in preceding period

Based on above definitions, define below given probabilities

P(No-Delayt/No-Delayt-1) = Probability of "no delay" in current period given that "no delay" in preceding period

= 0.85

P(Delayt/Delayt-1) = Probability of "delay" in current period given that "delay" in preceding period

= 0.75

and given that one period = 30 minutes

a) Given that motorist already knows that there is a traffic delay, probability of delay in next 60 minutes will be possible if both the consecutive periods is in "delay" state.

Period A Period B

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

Delay -------> Delay ------> Delay

Since both the delay events should occur together(consecutive) to get the required probability, hence

Probability that next 60 minutes(two consecutive periods) will be in delay state

= P(Delayt/Delayt-1) * P(Delayt/Delayt-1)

= 0.75 * 0.75

= 0.5625 [ANSWER]

b) probability that in the long run the traffic will not be in the delay state is equivalent to proability that all the time in No-delay state.

First calculate the probability of currren period in delay state given that preceding period in No-delay state

 P(Delayt/No-Delayt-1) = 1 - P(No-Delayt/No-Delayt-1)

= 1 - 0.85

= 0.15

Now the required probability,

  P(All the time No-Delay state) = 1 - P( one period in delay state)

= 1 - ( P(Delayt/Delayt-1) + P(Delayt/No-Delayt-1) )

= 1 - (0.75 + 0.15)

= 0.10 [ANSWER]

c) Yes. Because this assumption assumes that for the 30 minutes traffic will be in delay state and just after 30 minutes, there will be No-delay state which is a hypothetical situation. In general scenario, traffic doesn't behave like this. To make the model more realistic, the probabilities might have been modeled as a function of time, instead of being constant for 30 minutes.

On circle OOO below, \overline{SE} SE start overline, S, E, end overline is a diameter. What is the measure of \angle ISE∠ISEangle, I, S, E?

Answers

Answer:

Step-by-step explanation:

34

The right rectangular prism below is made up of 8 cubes. Each cube has an edge length of 12inch.


What is the volume of this prism?

Answers

Answer:

13824 cubic inches

Step-by-step explanation:

So all we need to do is:

1) Find the volume of 1 cube of the 8

2) Multiply that by 8, because 8 of them make the prism.

SO 1)

the volume of cube = side * side * side = 12*12*12 = 1728

SO 2)

the volume of prism = vol(cube) * 8 = 1728 * 8 = 13824

ANSWER: 13824 cubic inches ;)

If 15 bahs are equal to 24 rahs, and 9 rahs are equal in value to 15 yahs, how many bahs are equal in value to 1000 yahs?

Answers

Answer:

  375

Step-by-step explanation:

  b : r = 15 : 24

  r : y = 9 : 15 = 3 : 5 = 24 : 40

Then ...

  b : r : y = 15 : 24 : 40

The number of bahs equivalent to 1000 yahs is ...

  bahs = (15/40)(1000) = 375

375 bahs are equal in value to 1000 yahs.

The cost, not including tax, of paper and pens
at the card store is $21.79. The tax is 9% of
the selling price. What is the total cost of the
pens and pencils including tax?

Answers

The answer would be $23.75

Which choice are equivalent to the fraction below? Check all that apply 6^7/6^5

Answers

Answer:36

Step-by-step explanation:u

6^7/6^5

6^(7-5)

6^2

6x6=36

θ is an acute angle. Find the value of θ in radians.
sin(θ)=1
Write your answer as an integer or as a decimal rounded to the nearest hundredth.

Answers

The value of θ in radians when sin(θ) = 1 is π/2, approximately equal to 1.57 rounded to the nearest hundredth.

To find the value of θ in radians when sin(θ) = 1, we know that sine is the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

Since the sine of an acute angle cannot exceed 1, and sin(θ) = 1, this indicates that θ must be a 90-degree angle, or π/2 radians.

In radians, π represents the ratio of the circumference of a circle to its diameter, and π/2 corresponds to one-fourth of the circumference, which equals a right angle.

Therefore, the value of θ in radians is π/2, or approximately 1.57 rounded to the nearest hundredth.

Type the expressions as radicals.

Answers

[tex] \sqrt{ {q}^{3} } [/tex]

Step-by-step explanation:

[tex] {q}^{ \frac{3}{2} } = ( {q}^{3} )^{ \frac{1}{2} } = \sqrt{ {q}^{3} } \\ [/tex]

Box measure 4 units by 2.5 by 1.5 units what is the greatest number of cubes side length o 1/2 unit can be pack inside the box
Show details

Answers

Answer:120

Step-by-step explanation:

Volume=length x width x height

volume of box=4x2.5x1.5

Volume of box=15

Length of side of cube=1/2=0.5

Volume of cube=0.5x0.5x0.5

Volume of cube=0.125

Number of cube that can pack inside there box=15 ➗ 0.125=120

A car that normally sells for $20,000 is on sale for $16,000. What percent of the original price of the car is the final price?

Answers

Answer:

80%

Step-by-step explanation:

20000. take out 3 zeros from both numbers and you get 20 and 16. 20 is 4 times 5 and 16 is 4 times 4 if 20 is 100% then 4 over 5 is 80%

Find the error in the student’s calculation.
a. The student should have simplified the exponent first.
b. The student did not subtract 3 and 8 correctly.
c. The student should not have multiplied 8 and -2.
d. The student did not make an error.

Answers

Answer:

The answer is A

Step-by-step explanation:

When doing an equation you always have to follow this order: exponents, parentheses, multiply/divide, then addtion/subtraction

Sam is creating a homemade lava lamp using an empty 0.6-liter water bottle. He fills the 1.25 bottle with deciliters of colored water, and plans to fill the rest of the bottle with oil. How many milliliters of oil will he need?

Answers

Answer:

475  milliliters  of oil

Step-by-step explanation:

1 liter =1000 milliliters

1 deciliter =100 milliliters

To make it easier, we convert all our units to milliliters.

Volume of the water bottle =0.6 liter

=0.6 X 1000 =600 milliliters

Volume of colored water = 1.25 deciliters

=1.25 X 100 =125 milliliters

Therefore:

Volume of oil needed to fill the bottle = 600-125

=475  milliliters

Final answer:

Sam will need to add 475 milliliters of oil to the 0.6-liter bottle after adding 1.25 deciliters of colored water to create his homemade lava lamp.

Explanation:

The question involves calculating the volume of oil needed to fill the remainder of a 0.6-liter bottle after adding some colored water. To solve this, we need to convert the measurements into the same units and perform subtraction. In this case, we convert deciliters to milliliters, as we know that 1 deciliter is equivalent to 100 milliliters. The student has filled the bottle with 1.25 deciliters of colored water, which is 1.25 × 100 milliliters = 125 milliliters of water.

Since the bottle can hold 0.6 liters, which is equal to 600 milliliters, the amount of oil required will be the total bottle capacity minus the volume of colored water already added. Thus, we calculate 600 milliliters (bottle capacity) – 125 milliliters (water added) to find the volume of oil needed.

So, Sam will need 600 mL – 125 mL = 475 milliliters of oil to fill the rest of his homemade lava lamp.

Multiply and simplify: (6x + 3y)(6x − 3y)

Answers

Answer:

36x² - 9y²

Step-by-step explanation:

We see that the given expression (6x + 3y)(6x - 3y) looks just like the expression (a + b)(a - b). When multiplied out, this is a difference of squares identity that I highly recommend you memorise:

(a + b)(a - b) = a² - b²

Here, a = 6x and b = 3y, so plug these in:

(6x + 3y)(6x - 3y) = (6x)² - (3y)² = 36x² - 9y²

Answer:

36x² - 9y²

Step-by-step explanation:

(6x + 3y)(6x − 3y)

(6x)² - (3y)²

36x² - 9y²

What are the most bags Mrs. Dupree can make? Will choose brainliest and will report absurd answers

Answers

Answer:

  B.  4 bags

Step-by-step explanation:

The number of bags that will have the same quantities of the different gifts is the Greatest Common Divisor of the numbers of gifts.

  GCD(24, 32, 44) = 4

Mrs. Dupree can make at most 4 identical bags.

___

How to find the GCD

The GCD can be found by looking at factors:

24 = 4·632 = 4·844 = 4·11

4 is the largest common factor of these numbers.

__

The GCD can also be found using Euclid's algorithm. In that algorithm, the larger number is divided by the smaller, with the remainder replacing the larger number after each step. If the remainder is zero, the smaller number is the GCD.

The GCD of several numbers can be found by finding the GCD of a pair, then of that value and the next number:

  GCD(24, 32, 44) = GCD(GCD(24, 32), 44) = GCD(8, 44) = 4

_

  32/24 = 1 r 8 . . . . first step in Euclid's algorithm for GCD(24, 32)

  24/8 = 3 r 0   ⇒   GCD(24, 32) = 8

Then

  44/8 = 5 r 4

  8/4 = 2 r 0   ⇒   GCD(8, 44) = 4 = GCD(24, 32, 44)

Please help 6th grade math ! :)

Answers

Answer:

2.50 per two bottles of sprite

Step-by-step explanation:

A truck that can carry no more than 7200 lb is being used to transport refrigerators and upright pianos. Each refrigerator weighs 250 lb and each piano weighs 525 lb. Write and graph an inequality to show how many refrigerators and how many pianos the truck could carry. Will 14 refrigerators and 9 pianos overload the​ truck? Explain. Let x be the number of refrigerators in the truck and y be the number of pianos in the truck. Write an inequality to show how many refrigerators and how many pianos the truck could carry.

Answers

Answer:

x250+y525=7200 the answer is no

Step-by-step explanation:

A rectangular sheet of paper is folded diagonally. What is the length of XY?

15 in

8 in

OA) 23 in.

OB) 19 in.

OC) 15 in.

OD) 17 in.

Answers

Answer:

17 inches

Step-by-step explanation:

what shape would you get if you cut off one of the corners of a rectangular prism

Answers

Cutting off one corner of a rectangular prism creates a bicapped trigonal prismatic shape.

When you cut off one of the corners of a rectangular prism, you would get a shape known as a bicapped trigonal prismatic. This shape is formed by twisting one face of a cube relative to another, folding opposing faces towards one another, and distorting the original rectangular prism.

Brent’s after-school game club has 12 members from which a six-member team is created. Miguel’s after-school sports club has 10 members from which a six-member team is created. Which student’s club has more possible combinations for his six-member team?

Answers

Answer:

Brent

Step-by-step explanation:

More numbers = More combinations

Answer:

Brent’s club has more possible team combinations because there are more members to choose from.

Step-by-step explanation:

I completed it on edg 2020

tina has a doll which she can dress with a hat, a scarf and a jacket.
she has 3 different colour hat, 4 different colour scarves and 5 different colour jackets
Tina chose a hat a scarf and a jacket for her doll
how many combinations of hat scarf and jacket can she choose ​

Answers

Answer:

60 combinations

Step-by-step explanation:

3 × 4 × 5 = 60

Hope i helped!

Tina can choose from 60 different combinations of hat, scarf, and jacket for her doll.

To find the total number of combinations Tina can choose for her doll's outfit, you can use the multiplication principle.

Tina has 3 choices for the hat, 4 choices for the scarf, and 5 choices for the jacket.

To find the total number of combinations, multiply the number of choices for each item together:

3 (choices for the hat) × 4 (choices for the scarf) × 5 (choices for the jacket) = 60

Tina can choose from 60 different combinations of hat, scarf, and jacket for her doll.

for such more question on combinations

https://brainly.com/question/28065038

#SPJ3

At a high school, the cafeteria staff provides optional comment cards to students eating in the cafeteria. Students who wish to make a comment can obtain and fill out a comment card and return it to a drop box in the front office. At the end of the semester, the staff analyzes the responses and finds that 72% of the students who filled out a comment card recommend major changes to the food selection. What conclusions can the cafeteria staff draw from these responses?A) Since all of the students had an opportunity to respond, this is evidence that a majority of all the students supports major changes. B) The cafeteria staff should not use the results to draw any conclusions since some students may not have filled out a comment card, which is non-response. C) If the students recorded their grade level with their response, the staff could make the original sample a stratified sample and use the responses to learn what proportion of each grade recommends major changes to food selection. D) The responses were from a voluntary response sample, so the cafeteria staff should not use the results to draw any conclusions. E) The opportunity to fill out comment cards should be offered to students at all high schools in the school district to get a larger sample size, which will make the results more reliable,

Answers

Answer:

A) Since all of the students had an opportunity to respond, this is evidence that a majority of all the students supports major changes.

Step-by-step explanation:

Since all the students were given equal opportunity then the response suggest that a major change is required by the students.

Answer: d

Step-by-step explanation: the responses were from voluntary response sample, so the cafeteria staff should not use the results to draw any conclusions

The following represent statistics of weekly salaries at the Harper Publishing Company.
Mean = $470 Median = $475 Mode = $460 Standard deviation = $30
First Quartile = $450 Third Quartile = $485 79th Percentile = $545 P67 = $483

Answers

Answer:

1) The most common salary is $460.

2) The salary that half of the employees surpassed is $475

3) The percentage of employees with salaries below $485 is 75%

4) 75% of the employees have a salary above $450.

5) The salary that stands 3 standard deviations below the mean is $380

6) 33% of the employees have a salary above $483.

7) The salary that stands 2 standard deviations above the mean is $530

Step-by-step explanation:

Hello!

1. What is the most common salary?______________

The measure that allows you to know which one is the most common value (i.e. the most frequent/observed number) in a data set is the mode. According to the given statistics, the most common salary is $460.

2. What salary did half the employees surpass?_________________

The measure that divides the sample in exactly a half (bottom 50% from the top 50%) is the median. In this example the salary that half of the employees surpassed is $475.

3. About what percent of employee's salaries is below $485?__________________

As you can see in the descriptive statistics, the third quartile (Q₃) is $485.

The Q₃ is the value that divides the bottom 75% of the sample from the top 25%. So the percentage of employees with salaries below $485 is 75%

4. What percent of the employees are above $450?___________________

The first quartile (Q₁) is the value that separates the bottom 25% of the sample from the top 75%. In this case Q₁= $450, which means that 75% of the employees have a salary above $450.

5. What salary is 3 standard deviations below the mean?____________________

The mean is $ 470 and the standard deviation is $30, the salary that stands 3 standard deviations below the mean is

X[bar]-3S= $470-3*$30= $380

6. About what percent of employee's salaries is above $483?__________________

P₆₇= $483, this value is the 67th percentile and means that 67% of the employees have a salary below $483.

If 67% are below $483, then 100 - 67= 33% of the employees have a salary above $483.

7. What salary is 2 standard deviations above the mean?______________________

The mean is $ 470 and the standard deviation is $30, the salary that stands 2 standard deviations above the mean is

X[bar]+2S= $470+2*$30= $530

I hope you have a SUPER day!

corse hereo Joe has two drawers containing socks. The first contains three pairs of red socks, two pairs of black socks, and one pair of white socks. The second drawer contains two pairs of red socks, one pair of black socks, and two pairs of white socks. Each morning Joe flips a fair coin and picks two socks at random from the first drawer if heads is flipped; if tails is flipped he instead picks two socks at random from the second drawer. Joe is observed leaving his house this morning wearing one red and one black sock. What is the probability he flipped heads today?

Answers

Answer:

P(H/A) = 0.6716

Step-by-step explanation:

Let's call H the event that Joe flipped heads, T the event that Joe flipped tails and A the event that Joe wear one read and one black sock.

So, the probability that he flipped heads given that Joe wears one read and one black sock is calculated as:

P(H/A) = P(H∩A)/P(A)

Where P(A) = P(H∩A) + P(T∩A)

On the other hand, nCx gives the number of combinations in which we can select x elements from a group of n elements. nCx is calculated as:

[tex]nCx=\frac{n!}{x!(n-x)!}[/tex]

So, the probability that Joe wear one red and one black sock given that he picks the socks from the first drawer is:

[tex]\frac{6C1*4C1*2C0}{12C2}=0.3636[/tex]

Because he need to choose one red sock from the 6 that are in the first drawer, one black sock from the 4 that are in the first drawer and 0 white socks. Additionally there are 12C2 ways to choose a pair of socks.

Therefore the probability P(H∩A) that that Joe flipped heads and Joe wear one read and one black sock is:

P(H∩A) = 0.5*0.3636 = 0.1818

Because there is a probability of 0.5 to flipped heads and the probability that Joe wear one red and one black sock given that he flipped heads is 0.3636.

At the same way, the probability that Joe wear one red and one black sock given that he picks the socks from the second drawer is:

[tex]\frac{4C1*2C1*4C0}{10C2}=0.1778[/tex]

Therefore the probability P(T∩A) that that Joe flipped tails and Joe wear one read and one black sock is:

P(T∩A) = 0.5 * 0.1778 = 0.0889

Finally, P(A) and P(H/A) is equal to:

P(A) = 0.1818 + 0.0889 = 0.2707

P(H/A) = 0.1818/0.2707 = 0.6716

The monthly demand equation for an electric utility company is estimated to be p equals 59 minus (10 Superscript negative 5 Baseline )x​, where p is measured in dollars and x is measured in thousands of​ killowatt-hours. The utility has fixed costs of ​$3 comma 000 comma 000 per month and variable costs of ​$27 per 1000​ kilowatt-hours of electricity​ generated, so the cost function is Upper C (x )equals 3 times 10 Superscript 6 Baseline plus 27 x. ​(a) Find the value of x and the corresponding price for 1000​ kilowatt-hours that maximize the​ utility's profit. ​(b) Suppose that the rising fuel costs increase the​ utility's variable costs from ​$27 to ​$41​, so its new cost function is Upper C 1 (x )equals 3 times 10 Superscript 6 Baseline plus 41 x. Should the utility pass all this increase of ​$14 per thousand​ kilowatt-hours on to the​ consumers?

Answers

Answer:

a) The price that maximizes profit is p =$43.

b) The utility shouldn't pass all this increase on the consumers because this would mean a decrease in the profits. They should pass only $7 to consumers price.

Step-by-step explanation:

We have an electric utility company which has a demand function defined by:

[tex]p=59-10^{-5}x[/tex]

where p is the price and x is the the energy in thousands of kWh.

The cost of the company is defined as:

[tex]C(x)=3\cdot 10^6+27x[/tex]

We have to calculate the price that maximizes the utility's profit R(x).

We can define the profit as:

[tex]R(x)=p\cdot x-C=(59-10^{-5}x)\cdot x-(3\cdot 10^6+27x)\\\\R(x)=-10^{-5}x^2+(59-27)x-3\cdot10^6\\\\R(x)=-10^{-5}x^2+32x-3\cdot10^6[/tex].

To maximize R, we have to derive it and equal to zero

[tex]\dfrac{dR}{dx}=0\\\\\\\dfrac{dR}{dx}=-2\cdot10^{-5}x+32=0\\\\\\x=(32/2)\cdot 10^5=16\cdot 10^5=1.6\cdot 10^6[/tex]

The price that maximizes the profit is then:

[tex]p=59-10^{-5}x=59-10^{-5}(16\cdot 10^5)=59-16=43[/tex]

b) When the unit cost rise from $27 to $41, the utility profit function changes.

We have to calculate the new price that maximizes profit, and then we will know if the rise in cost was transferred to price completely.

The new profit function is:

[tex]R(x)=p\cdot x-C=(59-10^{-5}x)\cdot x-(3\cdot 10^6+41x)\\\\R(x)=-10^{-5}x^2+(59-41)x-3\cdot10^6\\\\R(x)=-10^{-5}x^2+18x-3\cdot10^6[/tex]

To maximize R, we have to derive it and equal to zero

[tex]\dfrac{dR}{dx}=0\\\\\\\dfrac{dR}{dx}=-2\cdot10^{-5}x+18=0\\\\\\x=(18/2)\cdot 10^5=9\cdot 10^5[/tex]

We calculate the new price as:

[tex]p=59-10^{-5}x=59-10^{-5}(9\cdot 10^5)=59-9=50[/tex]

The new price is $7 dollars above the previous maximizing price, so the rise in unit cost is only transferred 50% to the price.

The utility shouldn't pass all this increase on the consumers because this would mean a decrease in the profits. They should pass only $7 to consumers price.

After getting trounced by your little brother in a​ children's game, you suspect the die he gave you to roll may be unfair. To​ check, you roll it 60 ​times, recording the number of times each face appears. Do these results cast doubt on the​ die's fairness? Full data set Face Count Face Count 1 14 4 15 2 5 5 14 3 11 6 1 ​a) If the die is​ fair, how many times would you expect each face to​ show? nothing ​b) To see if these results are​ unusual, will you test​ goodness-of-fit, homogeneity, or​ independence? A. Independence B. Homogeneity C. ​Goodness-of-fit ​c) State your hypotheses. A. Upper H 0​: The die is unfair. Upper H Subscript Upper A​: The die is fair. B. Upper H 0​: The die is fair. Upper H Subscript Upper A​: The die produces outcomes that are less than the expected value. C. Upper H 0​: The die is fair. Upper H Subscript Upper A​: The die is unfair. D. Upper H 0​: The die is fair. Upper H Subscript Upper A​: The die produces outcomes that are greater than the expected value. ​d) Check the conditions. Is the counted data condition​ met? No Yes Is the randomization condition​ met? Yes No Is the expected cell frequency condition​ met? Yes No ​e) How many degrees of freedom are​ there? nothing

Answers

Answer:

Given:

Face ____________Count

1_________________14

4_________________15

2_________________5

5_________________14

3_________________11

6_________________1

a) I rolled the die 60 times and my values are recorded.

Assuming the die is fair, each face is expected to show 10 times.

[tex] 60* \frac{1}{6} = 10 [/tex]

b) To check if my results are unusual hypothesis test is used to address this. In this case the test is called goodness of fit.

c) For the null and alternative hypothesis :

The null hypothesis states , the die is fair (the number of times each face appear is equal)

The alternative hypothesis states the die is not fair.

H0 : p = 0.6

H1 : p ≠ 0.6

d)

The number of times the die is rolled is recorded.

The number of times the die is rolled is independent because the outcomes are independent.

Here the expected value of observation is more than five because the null hypothesis expects each die roll to be 10. Thus, the condition is satisfied.

e) Number of degrees of freedom for this test is n-1.

n = 6 (total faces in a die)

Therefore, degrees of freedom =

6-1 = 5

A research company desires to know the mean consumption of milk per week among males over age 25. A sample of 650 males over age 25 was drawn and the mean milk consumption was 3.4 liters. Assume that the population standard deviation is known to be 1.3 liters. Construct the 95% confidence interval for the mean consumption of milk among males over age 25. Round your answers to one decimal place.

Answers

Answer:

[tex]3.3\leq x\leq 3.5[/tex]

Step-by-step explanation:

The 95% confidence interval can be calculated as:

[tex]x'-z_{\alpha/2}\frac{s}{\sqrt{n}} \leq x\leq x'+z_{\alpha/2}\frac{s}{\sqrt{n}}[/tex]

Where [tex]x[/tex] is the mean consumption of milk, [tex]x'[/tex] is the sample mean, [tex]s[/tex] is the population standard deviation, [tex]n[/tex] is the size of the sample, [tex]\alpha[/tex] is 5%  and [tex]z_{\alpha /2}[/tex] is the z-value that let a probability of [tex]\alpha /2[/tex] on the right tail.

So, replacing [tex]x'[/tex] by 3.4 liters, [tex]s[/tex] by 1.3 liters, n by 650 and [tex]z_{\alpha /2}[/tex] by 1.96, we get that the 95% confidence interval is equal to:

[tex]3.4-(1.96*\frac{1.3}{\sqrt{650}})\leq x\leq 3.4+(1.96*\frac{1.3}{\sqrt{650}}) \\3.4-0.1\leq x\leq 3.4+0.1\\3.3\leq x\leq 3.5[/tex]

Answer:

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Since the sample size is large and the population standard deviation is known, we would use the following formula and determine the z score from the normal distribution table.

Margin of error = z × σ/√n

Where

σ = population standard Deviation

n = number of samples

From the information given

x = 3.4

σ = 1.3

n = 650

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.025 = 0.975

The z score corresponding to the area on the z table is 1.96. Thus, confidence level of 95% is 1.96

Margin of error = 1.96 × 1.3/√650 = 0.1

Confidence interval = 3.4 ± 0.1

The lower end of the confidence interval is

3.4 - 0.1 = 3.3 litres

The upper end of the confidence interval is

3.4 + 0.1 = 3.5 litres

Jenny is 12 years older than Nancy. Five years ago Jenny was three times as old as Nancy. How old is each now?

Answers

Answer:

Jenny = 23 | Nancy = 11

Step-by-step explanation:

Other Questions
What were the long term effects of the Lincoln-Douglas debates? Select the correct answer from each drop-down menu.The local promised to generate more jobs if the people voted for him.Missys friends consider her taste in clothes and accessories to be rather .Rachels behavior made her friends think she was hiding something.The unyielding ruler Louis XVI had all the characteristics of a .Karens bad attitude her getting kicked off the school basketball team.Renee her new puppy and let it sleep at the foot of her bed every night. A satellite travels around the Earth in a circular orbit. What is true about the forces acting in this situation? A. The resultant force is the same direction as the satellites acceleration. B. The gravitational force acting on the satellite is negligible. C. There is no resultant force on the satellite relative to the Earth. D. The satellite does not exert any force on the Earth. Which of the following quadrilaterals are always parallelograms? Select all that apply. square rhombus trapezoid rectangle 2 Why does an owl need a gizzard? Dennis wants to identify the themes of a book he liked.Which will best help him to infer the books themes?looking for other books that share the same topicfinding details that suggest a message about lifeasking his friends for their opinions about the bookexplaining the reasons he liked the bookplease help Monochromatic light of wavelength illuminates a pair of thin parallel slits of width a separated by a distance d at normal incidence, producing an interference pattern on a distant screen. a) (10 points) Explain two modifications to the experiment which would cause the maxima (bright spots) of the diffraction pattern to move away from the center. b) (10 points) Explain two modifications to the experiment which would cause the minima (dark spots) of the interference pattern to move towards the center. How did the people of ancient China adapt to the land?-Port cities were built with special materials to survive typhoons.-Flood controls like dams and canals were created to manage the rivers.-Land in river valleys was managed by the government to prevent excessive farming.-Ancient Chinese civilizations cut roads along the mountains to make them passable. will mark brainliest!!! need more french help :p images attached Because race only exists when people decide that there are differences between people, what do sociologists consider race to be? Deluxe River Cruises operates a fleet of river vessels. The fleet has two types of vessels: A type-A vessel has 60 deluxe cabins and 160 standard cabins, whereas a type-B vessel has 80 deluxe cabins and 120 standard cabins. Under a charter agreement with Odyssey Travel Agency, Deluxe River Cruises is to provide Odyssey with a minimum of 360 deluxe and 680 standard cabins for their 15-day cruise in May. It costs $42,000 to operate a type-A vessel and $51,000 to operate a type-B vessel for that period. How many of each type of vessel (x type-A and y type-B) should be used in order to keep the operating costs to a minimum what Did Mandela experience living in Johnsonburg can someoneeeeeeeeeee please help me Re-write the equation after you distributeand combine all the like terms.12-4(-3x+5)-8x=20 is a type of chemical weathering.OA. Frost wedgingOB. CarbonationOC. AbrasionOD. Heat effects A horizontal spring with a 10000 N/m spring constant is compressed 0.08 m, and a 12-kg block is placed against it. When the block is released, the block shoots forward along a horizontal surface that exerts 8 N friction force on the block. How far from the original position does the block travel before coming to a stop For each star, determine how its light would be shifted. Not all choices may be used, and some may be used more than once. A red dwarf moving away from Earth at 39.1 km/s A yellow dwarf moving transversely at 15.1 km/s A red giant moving towards Earth at 23.3 km/s A blue dwarf moving away from Earth at 25.9 km/s A red dwarf moving transversely at 14.1 km/s Please help me with this How did researchers combine their work to decipher the Rosetta Stone? Read the sentence underlined in the lastparagraph of the passage, on pages 5-6. Whatis suggested by Washington's use of imagery inthe sentence?the belief that negative attitudes will diminish aspeople gain clarity and understandingthe concern that people will become accustomed toinjustices and just ignore themthe view that former slaves will need to work hard inorder to reach their full potentialthe idea that getting a college education results inchanges in attitudes about race Steam Workshop Downloader