# Critical Thinking/Math

143,199 results, page 26

### Calculus

f(x, y) = 3ycos x, 0 ≤ x ≤ 2π Finding the locla minima, maxima, and saddle points. Having difficulty as so far I have: Fx = -3ysinx Fy = 3cosx Fxx = -3ycosx Fyy = 0 Fxy = -3sinx I have set both Fx and Fy equal to 0 but am not too sure about the critical points...

### Maths

i have an answer but im not sure if its right would you tell me please and show me the steps of how to work through the question make f the subject 7f-5=3g(2f+h) my answer was f=-h-5/3g-5 and i simplified that to f=-h/3g thanks for any help you can give me 7f= 6gf + 3gh +5 f(7...

### Criminal Justice

Need help with Analyzing the history, purpose and how does the rivalry continue to shape and influence American thinking about the prison system's purpose. This is concerning the Great Penitentiary Rivalry: Pennsylvania Versus New York.

### algebra 1

I am having trouble with this problem. I have an equation written down but I have my doubts as to how correct it is. I am thinking of 3 consecutive negative numbers. If I multiply the first with the second and then subtract three times the third, the result is 57. What are the...

### marketing!!!

Audience Objections – Identify the reasons why your target(Seniors-age over 65) audiences may not be currently buying nintendo games such as thinking games such as puzzle scrabbles and so on? What obstacles does your plan need to overcome?

### English

Trying to help my grandaughter do her homework. Please help! They are learning about verbs in sentences. In the following sentence she is to underline the verb. "My father takes us hiking every Saturday." I am thinking it is "takes" but my daughter thinks it is "hiking". Is it...

### SOC

a social institution like health care, how to Compare and contrast on how the theoretical perspectives view the institution of healthcare. Then how does this way of thinking affect the people who are in or part of healthcare? PLEASE HELP I JUST NEED TO KNOW HOW TO FIND THIS ...

### adult education

Financial planning is very important to the success of your schooling, because you need to make sure that you have enough money saved for school. I am having problems with finding the verb can someone help me. I am thinking that it is saved but not sure.

### algebra

i am having problems with this current equation. 10/(5+x)= 12 so far i have tried to multiply both sides by x+5 but then my answer is x = 4.16... and im thinking its wrong. Thanks in advance and if possible answer with a explaination would be greatly appreciated so i can so ...

### L.A

What do you learn from these stage directions in The Governess? [The faintest trace of a smile her lips] A. Julia is suddenly very happy. B. Julia knows something Mistress doesn't know. C. Julia has made an important decision. D. Julia is thinking about someone she loves. Is ...

### Canadian History

What were aboriginal peoples in Canada thinking and feeling about the nazi soviet pack in 1939? I can't find anything on it. I wanna know what the perspective of an at home aboriginal person was feeling towards the thought of another war? Please help.

### calculus

Please help me solve. I think increase = concave up and decrease = concave down? On the graph y = x^5-15x^3+10 for x what intervals is the function increasing, decreasing, concave up and concave down. Plot the critical points, plot and label the inflection points. Solve for ...

### tsu

Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $195,000 home if you put 20% down and financed the remaining with a ...

### chem

Benzaldehyde, C6H5CHO}, has a normal boiling point of 179.0 C and a critical point at 422 C and 45.9 atm. Using a phase diagram, estimate its vapor pressure at 125 Degrees I'm directing it up again to Dr. Bob. (or anyone else who can help) **** If the boiling point (179) is at...

### Nominal Data Be skewed?

Yes or no.. I'm thinking no... but i'm not entirely sure. For example if I have Marital Status, or Education. Can those be skewed if they are nominal level data?

### geometry

If you had a Iscocles triangle bca and the vertex c was 21y+13 and <b was 6y+1 would <a be congruent to <b since it states that they are congruent? and what would angle a be and what would y equal??? please help either I am thinking to hard or Im stupid lol :)

### calc

What is the derivative of: 2pi^2r^4 would it simply be 8pi^2r^3? I was thinking the 2pi^2 is simply the equivalent of a constant in front of the r^4 and so you would just use the power rule.

### Calculus

Evaluate lim x->0 (Sin^3 3x - 3x^3/x^3 x^4) I got zero (0) to be my answer by imputing 0 in place of x but am not so sure if the answer should be 0, am thinking it should be like 1/0 or something like that.

### US History

What role did the media play in the development of popular thinking related to the Spanish-American War? What is the correct role of news media in war time?

### History

Look up the 12th amendment to the constitution and summarize it in several sentences. then discuss its impact on theelections of 1804 ? Are you going nuts? Do you think someone here will do that for you? Folks here will gladly critique your work or thinking, or give you hints...

### health

yeah its me again :) and thank you Writeacher for checking my answer on smoking An antihistamine used to treat a common cold is intended to: A. Decongest B. Suppress the cough reflex C. Dry secretions D. Increase mucus clearance I think it could be either A or D but I'm ...

### Psychology

"He is never going to change. He is set in his ways," the client complained. "let's think about it. Does this hurt you or him.?" The therapist is applying: a. behavioural therapy b. a cognitive treatment approach c. psychodynamic therapy d. contingency contracting I am ...

### Physics

A rock is thrown vertically up into the air. It reaches a maximum height 15m above point where it was released. What is its initial velocity? a) 17 m/s b) 26 m/s c) 14 m/s d) 20 m/s I know the answer is a) 17 m/s and I got it wrong thinking it was d) 20 m/s but I can't seem to...

### psychology

Those who question evolutionary theorists’ ideas about human mating practices believe that evolution may have instilled in us the tendency to select a mate based on: A.wealth and attractiveness. B. attractiveness and youth. C. similarity and proximity. D. health and genetics...

### please help english

1. Which phrase, in "The Prisoner Who Wore Glasses," best describes Brille? (1 point) easygoing and generous with his friends intelligent, yet shortsighted in his political views intuitive and calculating in his appraisal of others quickthinking and quicktempered in his ...

### IT

Where would you find an address book on email? Archive - Would be old data files. Inbox - Like your mailbox. Insert - Command Tools - Control panel type. I'm thinking A but I am absolutely not sure, final for my course. They are all stupid answers, but which is the least?

### English

I am writing an essay about James Baldwin's Go Tell It on the Mountain, but the essay prompt asks me to disagree or agree with the interpretation of an critical essay we read about this book. For my essay, do I state whether I agree with the article and then use other evidence...

### speech

You are concerned about the high rate of school droupouts in your community and have recentky addressed the youth at a local secondary school who were thinking of dropping out of school and look for job.please help me its urgent the task is needed tomorrow

### economics

what are three main goals sought by policymakers in the economy? please help me one of my posts has a question I need checked and the other I don't know. I don't know what you guys are thinking.I really need help im not some kid on here scrapping for answers I posted my ...

### CHEMISTRY

the correct name for the compound with the formula CaS04 IS A.]CALCIUM SULFUR OXIDE B.]CALCIUM SULFIDE C.}CALCIUM SULFATE D.}CALCIUM SULFUR TETROXIDE I will be happy to critique your thinking on this.

### Physics

The displacement of an object in SHM is given by y(t) = (7.1 cm)sin[(1.64 rad/s)t]. What is the frequency of the oscillations in Hz? I'm completely stuck here. I was thinking that frequency = 1/t. I'm stuck with the information given. Please help!

### math- mean value theorem

Hi I am having some trouble with these few quetions I would appreciate some help so that I can understand them better. 1) What, if anything, does the mean value theorem guarantee for the given function on this interval? a) f(x) = x^2 - 2x + 5 on [1,4] --I am a bit uncertain on...

### Critical Thinking

Categorize each fallacy to its match fallacy which are Ad homimem/genetic, wishful thinking, "Argument" from popularity, Hasty Generalizing, "argument" from outrage, straw man, post hoc, red herring/smokescreen, group think, scare tactices, poisoning the well, apple polishing...

### Physics/Math

What work is done by a force (in newtons) F = 3.1xi + 3.1j, with x in meters, that moves a particle from a position r1 = 2.1i + 2.5j to r2 = - -4.9i -3.9j? For Further Reading * Physics/Math - bobpursley, Thursday, March 1, 2007 at 6:27am Work is the dot product of Force and ...

### english

The subject of this unit is the role of those mythologies which determine the meaning of being male or female in American culture. As always, your aim as a writer is to incorporate what the critics have been arguing into your own thinking, thereby to enter into a discussion ...

### MORE MATH

What is the factoring by grouping? When factoring a trinomial, why is it necessary to write the trinomials in four terms? I will be happy to critique your thinking on this. I do not understand to even answer it? (Broken Link Removed) (Broken Link Removed) How do we determine ...

### Physics

Light travels in a line of optical fiber by total internal reflection between a core of refractive index 1.48 and a cladding 1.46 refractive index. The critical angle for total internal reflection to occur inside the core of the fiber is ... 80.6º 48.8º 43.2º 42.5º 24.4º ...

### Algebra uno help please :)

Write an equation of the line that passes through the given point and is parrel to the given line. 1. (-1,3) Y=2x+2 I'm thinking that you just plug in -1 and 3 for x and y. So, 3=2(-1)+2 Correct? Please help me. :) Thank you -Allyson

### dressmaking

A houndstooth(black and white plaid) jacket would work well with which of the following bodylines? A) Straight B)Soft-straight C)Soft-curved D)curved Im thinking it could be A or B.Need help for this question

### physics

Under what conditions is mass conserved? A. Whenever the system is isolated or closed. B. Only when the change is a chemical one. C. Always. D. Only when the change is a physical one. I was thinking A.

### English

On a Works Cited page, which of the following should be in italics? title of a book title of a webpage title of a short story title of a newspaper article I'm thinking book but I'm not sure:/

### English

I have a few more sentences on Dorian's death I'd like you to check. Thank you. 1)Dorian throws himself on the sofa and starts thinking of his past. He recognizes he has filled his mind with corruption, committed horrible crimes and has exerted an evil influence on others. 2) ...

### stats

for some independent data using the mann whitney test group a has rank sum of 97.5 with group size = 9 group b has a rank sum of 92.5 with a group size of 10 from the data table i have the two critical values for p=0.05 are 65 and 115 i know im supposed to compare them and ...

### statistics

for some independent data using the mann whitney test group a has rank sum of 97.5 with group size = 9 group b has a rank sum of 92.5 with a group size of 10 from the data table i have the two critical values for p=0.05 are 65 and 115 i know im supposed to compare them and ...

### calculus

Consider a differentiable functionf having domain all positive real numbers, and for which it is known that f'(x)=(4-x)^-3 for x.0 a. find the x-coordinate of the critical point f. DEtermine whether the point is a relative maximum or minomum, or neither for the fxn f. justify ...

### PLEASE HELP ME!!!

A researcher has collected statistics pretest scores for students representing 3 different age groups 18-30 31-45 45 and up 3 5 10 7 10 2 9 9 8 6 8 8 4 6 5 Do hypothesis test using ANOVA to find if significant difference. Use alpha .05. All hypothesis steps and find degrees of...

### Plz help @Reed

Which statement is best supported by the fact that Mercy Otis Warren wrote plays critical of the British? Warren was one of the most popular playwrights of her day. Colonial women were interested in and informed about politics.*** Patriot women believed they were more ...

### algebra

I am thinking of two numbers whose sum is 5. If I add the second number to twice the first number, I get 2. What are the two numbers

### critical t hinking

Reporter: A new campaign finance reform bill being considered by Congress would limit the amount of campaign contributions that political candidates can receive. However, a survey of candidates running for mayor, governor, and senate seats shows that not one of them favors the...

### Math

Label each statement TRUE or FALSE. a. The sum of two one-to-one functions is one-to-one. b. The product of two one-to-one functions is one-to-one. c. If f is a one-to-one function and k is a real number (constant), then the function g(x)=k*f(x)is one-to-one. So I was thinking...

### multiplying fraction

what is 3/7 * 2/10= and 5/6*2/3= , 1/2*1/4=,4/5*3/5=,2/3*3/8=,1/7*5/9= (Broken Link Removed) 3*2 = 6 7*10 = 70 Answer to the first one is 6/70. Then you'll need to reduce the answer; divide both parts by two, and you'll have 3/35. Do the others the same way. =) need help ...

### ap history

what did the great awakening, intercolonial trade and the rise of the colonial assemblies have in common? Please note that we don't do students' homework for them. Once you have come up with your response, please repost, and someone here will be happy to critique your thinking...

### Boolean expression Help asap PLEASE

Thinking in terms of a gate, how would you keep open a two-input OR gate? In other words, what should one of the lines be held at to allow the other signal line to propagate through?

### social studies

Governments must provide some goods and services because: A. Producers cannot limit who uses them B. Only some people wish to use them C. Private companies are unable to make them D. Consumers distrust private suppliers of them I am thinking "C"

### English

What are some synonyms for "appears rarely" and "often referred" ? I'm writing an essay and my teacher doesn't want us to use the same phrases over and over again: repetitive as we write our paragraphs and I'm not really good at thinking of synonyms so please help me.

### Social Studies

which statement best describes the thinking of the enlightenment? A. the power of reason is more important B. scientific ideas must fit religious beliefs C. only god knows how the world works D. faith is more important than science is it A?

### Research Methods

Thinking of a survey you might design for a commercial client such as a software company or a restaurant, what are the ethical implications of using the survey results to publicize your own research firm? Looking forward to some ideas! Thanks!

### math help pls pls

The correlation coefficient for poor health and not exercising in a group of people is 0.67. Analyze the following statement: Poor health is caused by not exercising. Is this a reasonable conclusion? Yes; everyone who doesn't exercise is by definition unhealthy Yes; the ...

### child growth and development

Which of the following statements concerning teratogens is true? A. Teratogens include only substances that a mother's body produce. B. Hormones are heathful teratogens in any quantity C. Exposure to particular teratogens is most harmful during critical periods that ...

### Physics/Math

What is the sum of the following four vectors in unit-vector notation? For that sum, what are (b) the magnitude, (c) the angle in degrees, and (d) the angle in radians? E: 6.36 m at +0.90 rad F: 4.52 m at -75 ° G: 3.31 m at +1.20 rad H: 5.4 m at -210 ° [[[Warning! Make a ...

### Anatomy

Bone mineral density scans are required to detect early signs of osteoporosis because normal x-rays don't detect it until ____ percent of bone density is gone. A. 20 B. 30 C. 50 D. 80 I am thinking it is 30%.

### u.s. history

i need a good thesis statement for a history paper i have to write. the topic is changes that took place in the U.S. from 1776-1870 im not good at thinking up thesis statements please help

### English

In this sentence People have been telling themselves the story of Snow White for centuries. Is themselves reflexive or intensive. I am thinking intensive because you do not need it for the sentence to make sense?

### Physics! PLEASE HELP re Newton's Laws

What would you do given the following scenarios? 1. You are the capitan of a spacecraft traveling in the far reaches of outer space, a great distance from any other body. Unexpectedly your radar indicates a meteor on a collision course with your craft, necessitating a sudden ...

### chemistry

which of the following steps in the formation of KCI releases energy? A.K{solid} -> K{gas} B.K {GAS} -> K+ {GAS} + e- C.C1 {GAS} -> C1- {GAS} D.C1 {GAS} + e- -> C1 - {GAS} E. K+ {GAS} + C1- {GAS} -> KC1 {SOILD} A. A B. C C. B AND A D. D AND E I will be happy to ...

### GCU

Identify the three components/puzzle pieces that you believe are most critical to the formation of a worldview. Refer to the Cosgrove text to help identify these components. 2) After considering these components, write an essay of 500-750 words that explains how these ...

### calculus

Please help!! Okay so my teacher has been away and hasent explained anything to us and we have to find the intercepts, critical points, intervals of increase and decrease, points of inflection, intervals of concavity, local maximum or minimum points for each of the following ...

### STATS

Given a sample size of 18, with sample mean 660.3 and sample standard deviation 95.9 we are to perform the following hypothesis test. Null Hypothesis H0: ƒÊ = 700 Alternative Hypothesis H0: ƒÊ ‚ 700 At significance level 0.05 1. What is the critical value for this test...

### sssc

Suppose we test H0 : p = .3 versus Ha : p ≠ .3 and that a random sample of n = 100 gives a sample proportion p = .20. a: Test H0 versus Ha at the .01 level of significance by using critical values. What do you conclude? b: Find the p-value for this test. c: Use the p-...

### Algebra

If y varies directly with x, and y = 110 when x = 100, find the constant of variation k. If y = kx, then 110 = k*100. Solve for k. Check my thinking. Wouldn't I divide 110 by 100=1.1? yes

### 6th grade math

3 kids can buy a hot lunch salad bar or bring from home. On a slip of paper they each write a number 1,2, Or 3. They add the sum to find the total. If te sum is 3,4, or 5 they buy a hot lunch if it is 6 or 7 they buy a salad bar if the sum is 8 or 9 they bring a lunch from ...

### physics

Describe the energy conversions that occur in each of the following devices: a. an incandescent lightbulb b. a clothes dryer c. a digital clock radio We will be happy to critique your thinking. Heat is produced in all, and some light is produced in two. One also produces motion.

### Adult Development and life Assessment

After hearing about some possible causes of sneezing, a scientist decides that room fresheners are the most common cause. What is the term that describes the scientist thinking 1. Hypothesis 2. Scientific method 3. Cognitive dissonance 4. Social influence

### science

1) How do decomposers increase the fertility of soil? A) By storing moisture in the soil. B) By breaking down and digesting the remains of dead organisms. C) By making spaces for air and water. D) By burrowing deep below topsoil. I am thinking is is either B or D, but I do not...

### Science

In no more than three sentences I must state the "Hubble relationship" in words AND quantify numerically what it says about the "speed of recession" of distant galaxies (i am to include a definition of the "unit one parsec" in this 3-sentence answer) - CAN SOMEONE HELP ME ...

### Business

Your beachside inn will be ready to open next spring. To get in on the summer tourist trade, it will be necessary to… A- offer bargain rates at first B- give it an unforgettable name C- advertise heavily and local newspapers D- establish a strong web presence The answer is ...

### Statistics

In the population of typical college students, _ 5 75 on a statistics final exam _X 5 6.42 . For 25 students who studied statistics using a new technique, X 5 72.1. Using two tails of the sampling distribution and the .05 criterion: (a) What is the critical value? (b) Is this ...

### English

I have to write a critical essay on Hamlet and I can't find a good topic to write about. I need something that will be easy because I am not good in writing essays that are more elaborate. Can somebody suggest a good topic that will be easy to write about in approximately 700 ...

### physics

A ray of light traveling in air strikes the surface of a liquid. If the angle of incidence is 33.5◦ and the angle of refraction is 19.8◦, ﬁnd the critical angle for light traveling from the liquid back into the air. Answer in units of◦

### **CHEM**

Arrange the following elements in order of decreasing atomic radius: Cs, Sb, S, Pb, Se *(list from largest to smallest...or..."the correct ranking cannot be determined") ***I think the answer 'should be', from largest to smallest: ***Cs, Pb, Sb, Se, S***???? Am I correct in my...

### calculus

Let z = ∫(e^sin(t)dt) from x to y a = x b = y I tried thinking about it like a chain rule but even then i'm a little unsure. I know dz/dt = e^sin(t). Can you please point me in the right direction if i'm supposed to use the chain rule.

### calculus

Let z = ∫e^(sin(t))dt from x to y a = x b = y I tried thinking about it like a chain rule but even then i'm a little unsure. I know dz/dt = e^(sin(t)). Can you please point me in the right direction if i'm supposed to use the chain rule.

### calculus

Let z = ∫e^(sin(t))dt from x to y a = x b = y I tried thinking about it like a chain rule but even then i'm a little unsure. I know dz/dt = e^(sin(t)). Can you please point me in the right direction if i'm supposed to use the chain rule.

### CHEMISTRY

How many mL of pure isopropyl alcohol is needed to prepare 250 mL of 70% isopropyl alcohol (C3H7OH). I'm thinking if i should use vol of solute/vol of sol'n but it doesn't fit the formula and im confuse it. please help me

### Help

What is an example of bias in media? a website that presents a controversial opinion as though it were fact a television news program that presents both sides of a particular issue a podcast expressing an author’s opinion a blog about the history of the Civil War Why is ...

### Grammar

Which of the following is a complex sentence? A.After the class, we all went to Alec's house. B.Alec's brother John was home, but his sister Cynthia wasn't. C. Alec suggested we all go to the neighborhood pool. I'm thinking the answer is A, but I'm not too sure. Thanks for the...

### CURVE SKETCHING PLEASE HELP

Okay so my teacher has been away and hasent explained anything to us and we have to find the intercepts, critical points, intervals of increase and decrease, points of inflection, intervals of concavity, local maximum or minimum points for each of the following functions Can ...

### Calc One

The function C(m) = -.41m^2 + 6.7m - 44/ .7m represents Miles Traveled per lb. of CO 2 released as a function of speed(in MPH) for a hyundai Sontana. the domain of this function is [10,90]. A) calculate C'(m) B)find the critical points of C(m). C)Where does C(m) have global ...

### English

Why does Douglass state that “education and slavery were incompatible with each other”? There wasn’t time for slaves to go to school; they had too much work to do Being educated meant that slaves might question their existence and try to escape Slaves do not need an ...

### psychology

there are many barriers to rationality in our thinking process. Uncle Roy,for example, pays attention only to evidence that supports his views and finds fault with all evidence to the contrary. Uncle Roys behavior demonstrates the cognitive error of

### How concepts develop

When Lorna pours water from a short, wide beaker to a tall, thin beaker, she recognizes that the amount of liquid remains the same. She's demonstrating _______ thinking. A. nonconserving B. comparison C. conserving D. one-to-one correspondence my answer is b.

### concepts of development

When Lorna pours water from a short, wide beaker to a tall, thin beaker, she recognizes that the amount of liquid remains the same. She's demonstrating _______ thinking. A. nonconserving B. comparison C. conserving D. one-to-one correspondence my answer is c.

### Critical Thinking

Fallacy Type Fallacy Statement Ad hominem/genetic 8. From one politician about another: “He’s a two-faced, liberal, anti-family, anti-values idealist!” Wishful thinking 15. Sure, I’ve heard that it’s better to not eat cheeseburgers every day, but it’s extra protein...

### English

15. In this sentence, what is the antecedent of the pronoun it? A. work B. house C. Carla D. her I answered B, because the house (noun) was replaced by the word it (pronoun, which is considered the antecedent of the pronoun. Is my thinking correct. 17. Which of the following ...

### Criticial thinking

As part of the reorganization,company X created five new position within the company. However , after the reorganization was complete , company X had fewer employees that before the reorganization

### math

find the sum of the measures of the intieior angles of each polygon. -hexagon -pentagon -quadrilateral -octagon -16-gon -27-gon The key is the sum of the measures. All of these figures have the same total number of degrees in their interior angles. What do you think that is? ...

### calculus

Consider a differentiable functionf having domain all positive real numbers, and for which it is known that f'(x)=(4-x)^-3 for x.0 a. find the x-coordinate of the critical point f. DEtermine whether the point is a relative maximum or minomum, or neither for the fxn f. justify ...

### Political Science

Based on Bryan Caplan's book, The Myth of the Rational Voter: Offer your own opinion, and critical analysis, to Caplan’s argument about “rational irrationality.” What are the implications about Caplan’s story for American democracy? Do you agree with his story? Do you ...

### To Carol -- science

I've removed your post with the long, complex assignment that expects you to do research and thinking. If you have a specific question about this assignment, please post it along with your ideas about possible answers to it.