# Critical Thinking/Math

145,379 results, page 14

1. ### calculus

f(x)=2x+8x^-1.For this function there are four important intervals: (-infinity,A],[A,B),(B,C), and [C,infinity) where A,B and C are either critical numbers or points at which f(x) is undefined.Find A,B and C.
2. ### statistics

Find the critical value zc necessary to form a confidence interval at the given level of confidence. a. 90% = 1.645 b. 85% = 1.8025
3. ### College physics

A thin glass rod is submerged in oil. What is the critical angle for light traveling inside the rod?
4. ### Calculus

Under what conditions for f'(x) and f''(x) can a graph be "straight" without being horizontal? (I'm learning critical points and points of inflection...) Thank You.
5. ### Calculus

Sketch the graph of f(x)=x+2/x-4. Find the vertical and horizontal asymptotes, critical points, concave up/down, and inflection points.
6. ### Calculus

Find the intervals on which x^2/(x-3)^2 is decreasing. a. (0,6) b. (0,3), (3,6) c. (-inf,0), (6,inf) The critical numbers are x=0 and 6, but since there is an asymptote at x=3, I'm not sure whether a or b is the answer.
7. ### English

Are critical essays the same as argumentative essays? if not what are they
8. ### sociology

Which of the following would be the best illustration of the expressive role in U.S. society, as developed by Talcott Parsons and Robert Bales? 1. A newly married woman keeps a spotless apartment and cooks beautiful gourmet meals. 2. On Saturday, Bill does not need to go into ...
9. ### math

I am thinking of 3 different whole numbers which have a product of 36. 5 more than the sum of the 3 numbers is a perfect square. what is the sum of my 3 numbers?
10. ### biology 20

it is a well known fact that fingers and toes ar the first parts of the body to suffer from frostbite. Explain why the homeostatic mechanism of decreasing peripheral blood flow is critical to survival.
11. ### Statistics

When conducting an inferential statistical analysis, and applying a conventional "critical p-value" of .05, the odds of making a Type I Error and "rejecting a true Null Hypothesis" is? A. 1 in 30 B. 1 in 100 C. 1 in 20 D. 1 in 10
12. ### Calculus

1. For the function f(x)=4x^3-30x^2+4: a) Find the critical numbers of f(if any); b) Find the open intervals where the function is increasing or decreasing; and c) Apply the First Derivative Test to identify all relative extrema 2. For the function f(x)=(x-1)^(8/11) a) Find ...
13. ### physics

A body of mass 'M' starts sliding down on the inclined plane where the critical angle is 30 the coefficient of kinetic friction will be ?answer is square root 3 but how?i am not getting please help.
14. ### Algebra

ello i need help factoring I haven't had factorin sense Algebra one and now am in Algebra two and our school is screwed up were they shove in a year of Euclidean Geometry and Basic Trig inbetween first two years of Algebra... so i need to factor X^2-12X+35 I can sit there for ...
15. ### math (domain)

whats the domain and range of sine and tan? The sine ranges from -1 to +1. Its domain is all postive and negative numbers. I will be happy to critique your thinking on tangent.
16. ### Math:Polynomial Functions

h(x) = -7x I was thinking that this was not a polynomial function because -7x is just one term making it a monomial but the answer key says it is a polynomial function. Could someone explain why that is so? Thanks :D
17. ### Math

Need help setting up the problem: If you deposited \$800 into a savings account with an interest rate of 3.8%, what will be your balance at the end of 1 year. I was thinking the overall answer is 830.40 but you are supposed to use a percent equation and a proportion equation. I...
18. ### Math

WHICH KIND OF FUNCTION BEST MODELS DATA IN THE TABLE 0 -1,1 -0.5, 2 0, 3 0.5,4 1 I'm thinking quadratic because they are constant 0 1.7,1 6.8,2,27.2,3 108.8, 4 435.2 total confused here the x = 1 but the y's have no real sequence linear no quadratic no exponential don't think ...
19. ### Financial math

Farah has \$600,000 in her RRSP and wishes to retire. She is thinking of using the funds to purchase an annuity that earns 5% compounded annually and pays her \$3,500 at the end of each month. If she buys the annuity, for how long will she receive payments
20. ### math

how many 5-digit palindromes exist? i get 9*10*10*10*9=81000 is this correct? my thinking being that the first and last digit must be 1-9 and the other 3 0-9. thanks again for the time and effort. oh, and if any of you fine folks have the time could you browse down to my other...
21. ### Math

Thinking about the different types of numbers you learned in this unit, how would you help someone remember the differences between rational and irrational numbers? Remember to mention some of the Key Words from your lessons
22. ### math

Thinking about the different types of numbers you learned in this unit, how would you help someone remember the differences between rational and irrational numbers? PLEASE ANSWER NICE AND NEAT AND CORRECT PLEASE AND THANK YOU!! =)
23. ### Math

Thinking about the different types of numbers you learned in this unit, how would you help someone remember the differences between rational and irrational numbers? Remember to mention some of the key words from your lessons
24. ### Literature

I need to find a critical analysis for Thed Lady with the Pet Dog by Anton CHekhov? Can anyone give me advice where I can find this?
25. ### trig

I need to know how to graph y = sin 2(x - Pi/3) I need to have: Amplitude Period Phase Shift 5 critical points Help would be appreciated. Thanks.
26. ### Calculus

Find the interval(s) where the function is increasing where and it is decreasing. f(x)=sin(x+(pi/2)) for 0≤x≤2pi so my derivative is f'(x)=cos(x+(pi/2))? and my critical number is -pi/2?
27. ### Calculus

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0,50), a minimum at (1.5,−4), and no critical points between these two points.
28. ### Calculus

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
29. ### Calculus

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
30. ### Calculus 1

Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = x^(5)e^(-6x)
31. ### calculus

Could somebody help my find the critical points for y=(x-3)(x+2)^(2/3). When I take the derivative of the function I get is x=-2,3. But when I put the original function in wolfram alpha there is minimum at x=0
32. ### stast

suppose the alternative hypothesis in a hypothesis test is "the population mean is less than 60" if the sample size is 50 and alpha =.05, the critical value of the z is?
33. ### mircoeconomic

For each of the following situations, decide whether the bundle Lakshani is thinking about consuming is optimal or not. If it is not optimal, how could Lakshani improve her over-all level of utility? That is, determine which good she should spend more on and which good should ...
34. ### brain teaser help

SR=D+D+P+V+C+C+D+P lateral thinking: DEILST
35. ### Crittical Thinking

Classify the statement(p v r)→(~q ° p)
36. ### history

why did the framers of the constitution revrse their thinking?
37. ### algerbra 116

I am thinking that -9-(-8)= -1 ,is this the correct answer?
38. ### criticial thinking

Examples of Rhetorical Definition
39. ### Algebra

If x<5<1/x-1, then x could be which of the following? a) 5 b) 1 c) 7/6 d) 10/3 Please help, I am thinking the answer is C.
40. ### Statistics

What does this statement mean - "Measurements are nearly always of individual differences" And WHAT tools do we have that will allow us to interpret individual measures? My thinking for the first part of the question is something like, the reporting of a score can seldom be ...
41. ### Marine Science (Check my answers?)

3. What feeding strategy and adaptation would an organism that lived in the abyssopelagic zone most likely use in order to survive, and why? A. Scavenge dead matter on the ocean floor because it is difficult to find prey in the darkness. B. Use bioluminescence to scare away ...
42. ### Critical thinking

More than forty years after President JFK’s assassination, it’s no easier to accept the idea tha a loser like Lee Harvey Oswald committed a crime of the century all by himself with a \$12.78 mail-order rifle and a \$7.17 scope. Yet even though two thousand plus books and ...
43. ### Math

Two cards are drawn without replacement from an ordinary deck of 52 playing cards. What is the probability that both cards are kings if the first card drawn was a king? I'm thinking its 13/51 but not sure.
44. ### Math

two cards are drawn without replacement from an ordinary deck of 52 playing cards. what is the probability that both cards are kins if the first card drawn was a king? I was thinking it was 13/51 but not sure.
45. ### math

I am thinking of a number. If I add 4 to it, square the result, divide that result by 20, and subtract 4, the infal result is 1. What is my number
46. ### To NEO LOUIS - Math

I've removed your very complicated post, for which you have supplied no thinking on your own. Please repost when you can demonstrate that you have tried to answer all these questions -- and/or when you ask specific questions about your assignment.
47. ### Calculus (pleas help!!!)

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
48. ### HIM

Medicare and Medicaid financial issues put constraints on? a. physician services b. critical care centers c. public hospitals or d. outpatient services
49. ### statistics

assuming a two tailed one sample test is being used,what ie the critical value for t given the following sample sizes. N=10 N=15 N=30
50. ### Calculus

Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) h(p) = (p − 2)/(p^2 + 9)
51. ### poetry

Hi I need to do a critical analysis on one thematic aspect of Kenneth Koch's "One train may hide another" and I'm totally clueless. Any ideas?
52. ### critical reading

Elaborate comparisons which are used by advertisers are usually _____. A)fallacies of evidence. B) fallacies of language. C)newsworthy. I think it is B, is this correct?
53. ### Calculus

Consider the function f (x) = 2x^3 - 3x^2 - 72x + 7 Find and classify the critical points. Identify the intervals of increase and decrease, and state the intervals of concavity.
54. ### Physics

A block is at rest on an inclined plane. 63 kg µs = 0.47 èc Find the critical angle, èc, at which the block just begins to slide. Answer in units of ◦
55. ### Calculus 1

Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) h(t) = t^(3/4) − 3t^(1/4)
56. ### Calculus 1

Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) F(x) = x^4/5(x − 1)^2
57. ### calculus 1

Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = 4x3 + x2 + 4x
58. ### critical thinking

property owned by black residents in Washington D.C 1830-1860 property value(dollars)-no. of owners 1830 1840 1850 1860 1-200 26 30 21 8 200-400 20 35 58 51 400-600 13 26 32 69 600-800 7 16 20 61 800-1000 2 5 11 48 1000-1500 2 8 19 69 1500-2000 1 1 1 21 2000-2500 1 2 4 20 2500...
59. ### physics

Hi, can you help me with this one? A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 75.0 dB. This intensity level is too loud for your baby, who yells at 65.5 dB. (a) What total sound intensity engulfs you? _____ W/m2 (b) What ...
60. ### Math(grade8)

Find all primes less than 100 that can each be written in all three ways: p=a^2+b^2=c^2+2 e^2=f^2+3 g^2, and show how it's done with each one. The numbers you're squaring must be integers; show your thinking. thanksi don't get it at all
61. ### English

Could you please tell me if the following verbs can take the -ing form in the examples below? I included a sentence I need to write in an email. 1) I'm smelling the perfume of the flowers. I'm testing a red wine. 2) I'm hearing him coming (I think you can only say " I can hear...
62. ### Drama Question

Creative drama offers a means for cooperative learning and teamwork through which? 1. shared experiences 2. creative illustrations 3. building language skills 4. improvised facial expressions I am thinking "shared experiences" offer a means of cooperative learning and teamwork...
63. ### Calculus

q=(1000/p+1)^2 - 1 find q' I will be happy to critique your thinking.
64. ### history

what was The Significance of Noah Webster thinking and writing
65. ### communication Technology

Transmission - listening,thinking,searching
66. ### Brandy: chemistry

We will be happy to critique your thinking,but not do your tests for you.
67. ### poetry

i need help on thinking of a IAMBIC and TROCHAIC poem.
68. ### poetry

i need help on thinking of a acrostic poem for DOLPHIN.
69. ### algebra

If your thinking of a number between 8 and 15-which is it most likely to be
70. ### logical thinking

would you want to know the future why or why not? Survey question
71. ### DESIGN THINKING

how does Gordan Murray regard regulations
72. ### Advice...about chemistry degree Dr.Bob

Based on the question topic posted by Britney below titled:In your opinion (your answer to this reminded me of something) (I posted the same thing there but I thought it was improper to piggyback on that post so I posted this under a new topic) I don't know where to start but ...
73. ### Math

Need help with this one...The formula for finding BMI is (w+705)/h over h. where h is height in inches and w is weight in lbs. What is the BMI for a student wh is 5 ft tall and 100 lbs? When I try doing it I'm getting a long decimal number so I'm thinking I may not be doing it...
74. ### Math

What do you learn from these stage directions? [The faintest trace of a smile on her lips] A. Julia is suddenly very happy. B. Julia knows something mistress don't know. C. Julia has made an important decision. D. Julia is thinking about someone she loves. Could the answer be ...
75. ### Communication

What distinguishes “administrative” from “critical” approaches to the study of communication? Organize your response around representative researchers or scholars, as well as their findings, contributions or insights.
76. ### calculus

Hello. I need help finding the open intervals of this equation: f(x)=3x^2-12 I already took the derivative of it by using the derivative test and I got 2,-2 as critical numbers
77. ### calculus

Hello. I need help finding the open intervals of this equation: f(x)=3x^2-12 I already took the derivative of it by using the derivative test and I got 2,-2 as critical numbers
78. ### Critical Reading

Elaborate comparisons which are used by advertisers are usually a. fallacies of evidence b. fallacies of language c. newsworthy I am not very sure, I would guess b?
79. ### reimbursement methodologies

Medicare and Medicaid financial issues put constraints on? A.physicians services b.critical care c.public hospitals d. outpatient services
80. ### calculus

How many critical points does the function: (x+2)^5 * (x-3)^4 have? How would I solve this quickly? The answer says something about an effect of multiplicity of the zeros of the function?
81. ### psychology

During periods of physical development, the __________ of a sensation is critical if perception is to function normally. A. experience B. interpretation C. expectation D. mass function
82. ### Calculus

Find all points of extrema on the interval [0, 2pi] if y=x+sinx (-1.-1+(3pi/2)) (pi, pi) (-1,0) ((3pi/2), 0) none of these I got pi as my critical number but I'm confused with the intervals.
83. ### Math

Consider the following where s is in feet and t is in seconds. s(t) = t^3 + 4t^2 + 6t + 4 (a) Find v(t). v(t) = (b) Find a(t). a(t) = (c) Find v(3). (d) Find a(3). v(t) is the first derivative of s(t). a(t) is the second derivative of s(t). I will be happy to critique your ...
84. ### math

thinking/inquiry/problem solving: a formula for the sum of the first n terms of an arithmethic series is Sn=n^2 + 4n. determin e the first four terms of the series.
85. ### math

Lucy is thinking of a number. The number is greater than two hundred twenty-five. Her number is less than 2 hundreds 2 tens 7 ones. What is Lucy's number?
86. ### Math

Alice is covering a foam cube with fabric to make a fool stool. Each side of the cube is 20 inches. How many square inches of fabric will she need? Im thinking 20*4
87. ### Chemistry

Solid copper oxide reacts with ammonia gas according to the following equation: 3CuO + 2NH3 -> 3Cu + N2 + 3H20 50 grams of CuO is placed in an 80L reaction vessel, and the vessel was evacuated. Ammonia gas was then gradually introduced into the vessel, slow enough for the ...
88. ### Statistics

Can you please help with this question. The only thing that I have come up thus far is that I am using the z critical value because I am estimating a population proportion. Am I on the right track? An important issue facing Americans is the large number of medical malpractice ...
89. ### health administration

This is for a critical care nurse. Need to develop specific incentive, reward or recognition program and explain how this relates to maintaining positive employee relations. It has to be done in an outline form.
90. ### Calculus

We are finding critical numbers f(x)= 8x^3+x^2+8x f'(x)=24x^2+2x+8 -> 2(12x^2+x+4) I'm honestly stuck. All I can tell is that I need to set my f'(x)=0, but I am lost there too. Quadratic form. equates to (-1±i√191)/24 I believe. That is as far as I can get.
91. ### Calculus

We are finding critical numbers f(x)= 8x^3+x^2+8x f'(x)=24x^2+2x+8 -> 2(12x^2+x+4) I'm honestly stuck. All I can tell is that I need to set my f'(x)=0, but I am lost there too. Quadratic form. equates to (-1±i√191)/24 I believe. That is as far as I can get.
92. ### Calculus

We are finding critical numbers f(x)= 8x^3+x^2+8x f'(x)=24x^2+2x+8 -> 2(12x^2+x+4) I'm honestly stuck. All I can tell is that I need to set my f'(x)=0, but I am lost there too. Quadratic form. equates to (-1±i√191)/24 I believe. That is as far as I can get.
93. ### math

2/3 over 10 equals 1.8/r solve for r. (2/3)/10 = 1.8r. First, invert and multiply the denominator; i.e.,10. (2/3)*(1/10) = 1.8/r 2/30 = 1.8/r Now cross multiply. 2r = 30*1.8 2r = 54 Now divide both sides by 2 2r/2 = 54/2 r = 27 check my thinking. check my work.
94. ### Math

Are there more rational or irrational numbers? I am thinking irrational, because the product of a rational and irrational number is irrational. Is this enough of a reason to prove it?
95. ### Math

Zabato is thinking of a number. Three times the sum of the number and ten is the same as eight times the number. What is Zabatos number? Help! so confused thank you!
96. ### Math

if the product of two whole numbers is zero, then one of the factors is zero. To what axiom does this refer? I am unsure of the answer dealing wth axiom but im thinking it would possibly be the non zero divisor?? I don't know if im right
97. ### Currently doing Math,life science,geography and ph

I am thinking of changing physical science and do business with math,life science,business and geography what career can i pursue?
98. ### Currently doing Math,life science,geography and ph

I am thinking of changing physical science and do business with math,life science,business and geography what career can i pursue?
99. ### math

I need help teaching my 2nd grader how to come up with the answer. Easy for an adult..difficult to explain to a child. I am thinking of 2 numbers who sum is 15. One of the numbers is 9 more than the other. Got the 12 plus 3 part. Help me explain it in its simplest terms
100. ### PM

You are creating a customer database for Modesto Nuts minor league baseball team. Draw a project network given the information below. Complete the forward and backward pass, compute activity slack, and identify the critical path. How long will this project take? How sensitive ...