The probability that this couple has at least two girs is 0.5
This couple have an agreement to keep having children till they have two boys but they plan on not having more than 4 children.
Whenever they have a new child, there is a 0.5 chance that the baby is a boy.
The probability would be 1 - P'
P' = 0.5³ + 0.5³ + 0.5² = 0.5
1- 0.5 = 0.5
The probability that the couple has at least two girls is given as 0.5
What is probability?This is a topic in mathematics and statistics that is used to refer to the chances of an event occuring.
Read more on probability here: https://brainly.com/question/2984220
The ld50 for arsenic in humans is 13mg/kg. Which of the following approaches should be used to calculate the number of grams of arsenic it would take to reach the ld50 in a 140-pound person? [note: 1kg=2. 2pounds]
By performing a change of units, we will see that there are 0.827 g of arsenic needed.
How to calculate the grams of arsenic?
We know that the ld50 for arsenic in humans si 13mg/kg.
Now, if there is a person of 140 lb, to find the number of grams of arsenic it would take to reach the ld50, first we need to rewrite the mass of the person in kilograms.
Remember that:
1kg = 2.2 lb
then:
1 lb = (1/2.2) kg
Then we can rewrite the mass as:
M = 140lb = 140*(1/2.2) kg = 63.64 kg.
The amount of arsenic to reach the ld50 will be:
A = (13mg/kg)*(63.64 kg) = 827.27 mg
And we want this quantity in grams, remember that:
1 mg = 1*10^(-3) g
Then we can rewrite:
A = 827.27*(1*10^(-3)) g = 0.827 g
If you want to learn more about a change of units, you can read:
https://brainly.com/question/9032119
An atom has 10 protons 15 neutrons and 10 electrons
Answer:
25 mass number
Explanation:
Which work has the most suspense created by dramatic irony?
A. A movie in which an awkward engineer goes over all the gadgets a
dashing spy might use
B. A play about a plane that must make an emergency landing, after
which the passengers all become friends
Č. A short story about a time machine that allows a historian to visit
ancient Rome
D. A novel in which Abraham Lincoln goes to a theater, where the
reader knows he will be killed
SUBMIT
Answer:
D!!! 100% D
Explanation:
dramatic irony is something that the audience/reader knows will happen before it occurs. i dont know if my answer is still useful bc i'm 4 days late.
All of the following can make it difficult to calculate an action’s utility except
Answer:
The commitment of the person taking the action.
Explanation:
If r is a solution to the equation f(x)=0, name three additional statements that can be made about f and r assuming f is a polynomial function.
If r is a solution to the equation f(x) = 0, then the correct statement is; r is a real zero of the polynomial function f, r is an x-intercept of the graph of f and x - r is a factor of f.
What is a Polynomial Function?A polynomial function of degree N will have a total of N roots. These roots may even be complex conjugate pairs but if there are real roots, then the polynomial will have a linear factor with that root.
Thus, If r is a solution to the equation f(x) = 0, the correct statement that can be made about f and r assuming f is a polynomial function is that;
If r is a solution to the equation f(x) = 0, then r is a real zero of the polynomial function f, r is an x-intercept of the graph of f and x - r is a factor of f.Read more about polynomial functions at; https://brainly.com/question/7693326
Assume that you are testing the orders database introduced in watt (2014) - appendix c. Discuss the problems and possible consequences of using the orders database. Provide examples of how you would address any problems that you identified
The problems with orders database are;
When there is Incomplete or Missing Integrations: In this kind of issues, the consequences is that businesses are said to not perform to their optimum level as they have to workarounds the issue with the systems. Erratic or Slow Syncs: This slow rate that has errors can lead to incorrect shipping and inventory data.Unresponsive Customer Service: When the issues of customer, yare not addressed on time, customers may be rude to the brand and other issues will arise.What are the problems with databases?The Database Problems are:
Slow Read-Write Speeds.Scaling Problems. Wrong Virtual Machine settings, etcA database is known to be a form of organized make up of structured information, or data, that are said to be stored electronically in a computer system.
Learn more about database from
https://brainly.com/question/518894
The table shows the results of three surveys that randomly sampled 50 people about their favorite vacation spot. Beach mountains amusement park historic site total survey 1 14 8 14 14 50 survey 2 17 11 10 12 50 survey 3 19 10 13 8 50 select from the drop-down menu to complete the statement using the information from the surveys. Based on the results of these surveys, if 1200 people are asked, choose. Will most likely pick the beach as a favorite vacation spot
Answer:
400
Explanation:
I hope this helps!
Answer:
1/3x1200=400 So 400 is the answer.
Explanation:
Two methods that scientists use to study earth's interior
In addition, your margin per unit must cover another set of important but potentially large costs. to investigate these additional costs, click on the other tabs in the top navigational bar and explore further. what are the major elements of those other costs?
The major elements of those other costs are Advertising, Segmentation, and Channels Market segmentation.
What is channel segmentation?Channel Segmentation is known to be the act of stating out and dividing a retail channel, with effects for point of Purchase strategy and activation.
Note that market segmentation is the method use in the segmentation of one's target market into a kind of approachable groups.
See options below
Channels and Segmentation
Channels and Advertising
Advertising and Segmentation
Advertising, Segmentation and Channels
Learn more about Advertising from
https://brainly.com/question/1658517
How are refraction and diffraction similar? how are they different? check all that apply
Explanation:
they are diffrent cause refraction is solid and diffrection is liquid
Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object. The correct option is 4.
What is refraction?Refraction is the bending of light as it travels through transparent materials. We are able to create lenses, magnifying glasses, prisms, and rainbows because to this bending caused by refraction.
Diffraction and refraction both entail the bending of waves, which makes them comparable. The way this bending happens in them varies, though.
Refraction is the bending of waves as they travel through different media. The wave bends when it passes through various media due to the variations in speed.
Contrarily, diffraction involves the bending of waves as they move through or around an obstruction. As a wave runs into an opening or an object's edges, it stretches out and bends, which causes it to diffract.
Thus, the correct option is 4.
For more details regarding refraction, visit:
https://brainly.com/question/14760207
#SPJ2
Your question seems incomplete, the probable complete question is:
How are refraction and diffraction similar? How are they different? Check all that apply.
Refraction and diffraction both involve the bending of waves. Refraction and diffraction both involve the bending of waves through a medium. Refraction and diffraction both involve the bending of waves around objects. Refraction involves the bending of waves through a medium, and diffraction involves the bending of waves around an object. Refraction involves the bending of waves around an object, and diffraction involves the bending of waves through a medium.Nigel deposited $7000 into a savings account in which interest is compounded semiannually at a rate of 2. 38%. Assuming he makes no other deposits or withdrawals, how much will be in his account after 14 years?
The total amount that will be in Nigel's account after 14 years is $9,748.79
What is compound interest?Compound interest is the interest calculated on the principal and the interest accumulated over the previous period.
Principal amount P
= $7000
Since interest is compounded semiannually,
Then, t will be compounded 28 times in 14 years.
Formula for compound interest is
= P ( 1 + R / 100 )^N
Where
A is the amount after N years
P is the principal amount
R is the rate
So, the total amount after 14 years
= 7,000 ( 1 + 2.38 / 100 ) ^ 28
= $9,748.79
Hence, the total amount in Nigel's account after 14 years is $9,748.79.
Learn more about compound interest here : https://brainly.com/question/15274773
Write the reaction responsible for the solution being basic. Spectator ions do not need to be included
The reactions that lead to the production of hydroxide ions makes the solution to be basic.
What is a basic solution?A basic solution is a solution that ha a pH between 8 - 14. Usually, a solution is basic due to the production of hydroxide ions in the solution.
However, the reactions that lead to the production of hydroxide ions makes the solution to be basic.
Learn more about basic solution: https://brainly.com/question/3045247
What is the most effective way to address the counterclaim? the economic policy institute shows that raising the minimum wage will grow the economy so that actually there will be one hundred thousand new jobs. In fact, the research shows that the poorest workers will suffer the most because their jobs are the most likely to be eliminated by employers. While struggling to get by on minimum wage can be challenging, think about how it would feel to lose your job and not have any income at all. Meanwhile, more than 70% of the people affected by a minimum wage change will be families who make less than $60,000 in a year
Answer:
A. The economic policy institute shows that raising the minimum wage will grow the economy so that actually there will be one hundred thousand new jobs
Explanation:
The most effective way to address the counterclaim is that the economic policy institute shows that raising the minimum wage will grow the economy so that actually there will be one hundred thousand new jobs. Thus, the correct option for this question is A.
What is a Counterclaim?A Counterclaim may be defined as a kind of claim that significantly deals with the relief filed against an opposing party after the original claim being filled. This type of claim is generally made in order to offset another claim with respect to defending another's claim.
According to the context of this question, the economic policy institute surveys and expresses that the enhancement in the minimum wage will lead to the growth of the economy. For this, there will be one hundred thousand new jobs available. Here, the availability of jobs counterclaims the declaration made by the economic policy institute.
Therefore, the correct option for this question is A.
To learn more about Counterclaim, refer to the link:
https://brainly.com/question/91599
#SPJ5
Which similarity postulate or theorem correctly identifies the triangles’ relationship?
The similarity theorem that identifies the given relationship correctly is:
B). AABC - ADEF by SAS Similarity Theorem
What is SAS Similarity postulate?The SAS similarity Theorem states that in the situation where the ratio shared by the sides of two triangles remains the same and one of their angles stays equal, both the triangles would be similar.
In the given two triangles, ΔABC and ΔDEF we see that;
the ratio of the sides are:
BC/AB = EF/DE
5/15 = 4/12 = 1/3
and,
∠B = ∠E = 86°
Since the ratios shared by the two sides are equal in both the given triangles and one angle is equal, the triangles are the same.
Thus,
ΔABC is similar to ΔDEF
Read more about triangle theorem at; brainly.com/question/19258025
The function of the allusion in line 4 might best be understood to convey
Based on line 4, the function of the allusion is to convey an information: that the lovers were oblivious to the world around them.
What is an allusion?In English literature, an allusion is a type of literary device and it can be defined as a reference in a text to a well known text, place, person, event, or thing.
This ultimately implies that, allusion avails an author the opportunity to compress (embed) a great deal of meaningful and significant information into a phrase or word such as "she felt like she had a golden heart."
In conclusion, the function of the allusion might best be understood to convey an information references the fact that the lovers were oblivious to the world around them.
Read more on allusion here: https://brainly.com/question/2427003
Consider a regular hexagon inscribed in circle c with radius r. Regular hexagons have six congruent sides and six congruent angles. In the figure, angle cab measures 60°. What is m∠acb? ° what is the length of segment ab? what is the perimeter of the hexagon? the perimeter of the hexagon is the circumference of the circle. The circumference of the circle is
Answer:
Consider a regular hexagon inscribed in circle C with radius r. Regular hexagons have six congruent sides and six congruent angles. In the figure, angle CAB measures 60°.
What is m∠ACB?
✔ 60
°
What is the length of segment AB?
✔ r
What is the perimeter of the hexagon?
✔ 6r
The perimeter of the hexagon is
✔ slightly less than
the circumference of the circle.
The circumference of the circle is
✔ slightly greater than 6r
Explanation:
Based on the information given, angle ACB is equal to 60°.
Given the following data:
Angle CAB = 60°How to calculate m∠ACB.Form the diagram, we can deduce that CA is equal to CB and it is the radius of the circle. Therfore, ∠CAB = ∠ACB = 60°.
Since the triangle is an equilateral triangle, the length of segment AB is equal to the radius of the circle because all the sides of an equilateral triangle are equal.
Also, since one of the six (6) arcs of the hexagon is measured as radius (r), then its perimeter is equal to 6r.
Furthermore, the perimeter of the hexagon is slightly less than the circumference of the circle because the circumference is longer.
In conclusion, the circumference of the circle is slightly greater than 6r.
Read more on circumference here: brainly.com/question/14478195
In a balanced chemical equation the numbers of individual particles
Answer:
In a balanced chemical equation the number of individual particles and the number of moles of particles are represented by the COEFFICIENTS
Explanation:
Please mark me brainliest
This theory of emotion suggests that first a specific physiological response to stimuli is experienced, and the emotion that results is an interpretation of this unique physiological "code"
James–Lange theory is a physiological theory of emotion that explains that emotions are created in response to experiences and stimuli, where the autonomic nervous system creates physiological responses.
What is James–Lange theory?It is a theory proposed independently by William James and Carl Lange, which suggests that emotions occur as a consequence of physiological reactions to events.
For this theory, emotions are processes that involve a series of triggering conditions or relevant stimuli.
Therefore, we can conclude that the James–Lange theory explains the origin of the components of emotion and where physiological activation plays an important role in the existence of an emotional response.
Learn more about James–Lange theory here: https://brainly.com/question/9877031
What are the causes for students to drop out from university brainly
Explanation:
Poverty: when there is no money to further his/her education the person tends to drop out on the way because of lack of money. Peer influence: When you follow bad friends who smokes and are rugged you will see education as scam because he/she wants to belong.
Mental ill health: When someone is suffering from mental disorder that person can not stay in class without causing havoc.
Economic system
Family background
Ethnicity etc
Which of the following describes a scenario in which a chi-square goodness-of-fit test would be an appropriate procedure to justify the claim?
A scenario in which a chi-square goodness-of-fit test would be an appropriate procedure is: A campaign manager would like to show that the distribution of individuals within several social economic categories is different than what a newspaper reported. The campaign manager has a random sample of potential voters in a large city and records the number of individuals within each of the categories.
What is a goodness-of-fit test?A goodness-of-fit test can be defined as a statistical test that is used to test if sample data fits into a set of observations or distribution from a given population.
This ultimately implies that, a goodness-of-fit test helps to determine whether on not sample data represents the data that are expected in an actual population.
The types of goodness-of-fit test.In Statistics, there are four (4) main types of goodness-of-fit test and these include:
Anderson-DarlingKolmogorov-SmirnovShipiro-WilkThe chi-squareRead more on goodness-of-fit test here: https://brainly.com/question/16910222
Given the balanced equation representing a reaction: the mole ratio of no to no2 is
Answer:
3:4
Explanation:
In N₂O plus NO mixture (X n2o) equals 1/3. But- the mole fraction of NO in a mixture of NO and NO₂ is (3/4).
Therefore, the mole ratio representing no to no2 is 3:4, representing also the fraction, 3/4, with a numerator of 3 and the denominator of 4.
Here is how I got 3/4, (or to be specific, the RATIO, 3:4.)Which quality of the hudson river school art is displayed in this painting jiskha
Answer:B.
Explanation: I think it is B. A portrayal of a vivid landscape in the northeast. I think this because in the picture there a vivid landscape.
If scientist were to find 4 fossil that appear to be of the same ancestor, what can be concluded?
Answer:
The scientists was able to come to the conclusion that certain organisms have common ancestor because she was able to study and see the skeletal structures of extinct species and compare them with modern day species, and they had a big resemblance.
The skeletal structure is something that needs a lot of time to change, millions of years. Even then, the basics of the structure will be the same, with the further modifications in place on top of it. It is something that is very useful when comparing extinct species and modern day species, as it can give a nice clue about their connection and common ancestry.
The cats for example, the modern day ones and the first ones that appeared, have almost the same bone structure, where even a trained eye finds it hard to find a difference, and that is a very nice clue about tracing the ancestry.
The term evolution refers to the changes that occurred as organisms changed from earliest forms to their present forms. Evolution shows that complex life forms emerged from simple life forms.
The evidence that the scientist observed that led her to believe that certain organisms have a common ancestor is that she observed a fossil with skeletal structures similar to certain modern organisms.
Explanation:
They would likely conclude that certain groups of organisms have the same ancestor after looking at the bones and structure.
What are fossils?A fossil is a dead preserved remains of the organisms and their bodies are buried in sediments that were formed under ancient lakes and waters.
After looking at the strcture of bines and the scientists can come to the conclusion that these four fossils were of the same species and that they differ from the modern-day ones. Cabon dating and isotopic data can show us the time of origin.
Find out more information about the fossil.
brainly.com/question/11829803
How is the information in dna passed to a molecule of mrna? describe this process
The information in DNA is transmitted to the mRNA by the process of transcription.
What is transcription?The process by which data from the DNA is transferred to the mRNA is known as transcription. A messenger molecule called mRNA transfers information from the DNA to the tRNA so that it can be translated. Initiation, promoter, elongation, and termination are the steps that transcription takes.
Pre-mRNA transcripts are created during transcription by the enzyme RNA polymerase (green), which uses DNA as a template (pink).
The pre-mRNA gets transformed into a mature mRNA molecule, which can then be translated to produce the protein molecule (polypeptide) that the original gene intended.
Therefore, the information in DNA is passed to a molecule of mRNA through transcription.
To learn more about transcription, refer to the link:
https://brainly.com/question/1673529
#SPJ2
From your point of view make an acrostic of the word globalization
From my point of view make an acrostic of the word Globalization.
What is an Acrostic?
This is a type of poem in which the first or last letter of each line spells out a specific word.
An example of an acrostic of Globalization is:
Generations yet unborn
Living in more advanced parts
Of the world and will be made to
Believe that in the past there were
A lot of archaic products which
Led to the discovery of
Important technology and innovations ushering a
Zenith of power
As a result of these products
This will lead to more
Improvements of world
Orders and other vital
Necessities for years to come.
Read more about Acrostic here https://brainly.com/question/24788435
A can contains pound of vegetables. one serving of these vegetables weights pound. what is the total number of servings of vegetables in the can?
Answer:
1
Explanation:
Sara finds that one of her old metal frying pans has a hole in it from rust. Which type of frying pan should she replace it with?(1 point)
Based on the above case, Sara should use a pan that is made out of a different kind of metal that will not rust such as the one made from polymers.
What is the best metal for a frying pan?Stainless steel is know to be one of the best and general purpose frying pan material.
But the fact remains that stainless steel on its own is not a good conductor of heat and as such, to avoid rust one can use a pan that is made out of a different kind of metal that will not rust such as the one made from polymers.
Learn more about Pans from
https://brainly.com/question/26798796
Why is the sediment’s permeability an important factor in deciding where to put your well?
Answer:
The importance of the sediments permeability is that if it is permeable, water will flow easily through the sediment and thereby produce a very good supply of water for the well.
Listen and select the place that corresponds to each activity described. Questions modelo you hear: estudio para el examen. You select: la biblioteca
Answer:
1) el cafe
2) las montanas
3) el estadio
4) la piscina
5) el parque
6) el cine
Explanation:
A student releases a ball from 1. 5m from the floor. Which statement best describes the energy of the ball as it falls?
Answer:
Its potential energy is changed to kinetic energy
Explanation: