# None

3,488 results

### 3rd Grade Grammar

I need help. I think the book is trying to trick me. Directions: Select the Subject Pronouns and Object Pronouns in each sentence. 3. They filled the sky. S-they O-none? 5. Greta saw it first. S-none? O-it 6. Dad asked us to come inside. S-none? O-us 7. I wanted to stay ...

### Business

Assignment for week 5 Given the following information, draw the project network. Compute the early, late and slack times for the project network. which activities are on the critical path have only the start or finish of the activity on the critical path? ID duration finish to...

### Caluclus

Find the absolute maximum and absolute minimum of f on the interval (-1,2]: f(x)=(-x^3+x^2+3x+1)/(x+1) A. Maximum: (1, -2); Minimum: (-1, 2) B. Maximum: (1, -2); Minimum: None C. Maximum: None; Minimum: None D. Maximum: None; Minimum: (-1, 2) E. None of these I got to my ...

### ALGEBRA

1, Factor each expression x^2 - 10x - 24 A. (x + 4)(x - 6) B. (x + 6)(x - 4) C. (x + 2)(x - 12) D. (x + 12)(x - 2) 2, x^2 - 36 = 0 A. (1 + square root of 3, 1 - square root of 3) B. (-6,6) C. No solution D. None of these 3, Factor each expression 49 x^9 - 25 y^2 A. (7x^2 - 5y...

### Calculus

Find the exact real solutions, if any, of this quadratic equation. Use any method. If there is no real solution enter NONE in each box. 2x^2-5x+3=0 Is the smaller value none andthe larger value none.

### Algbra

How many solutions does the system of equations have? -2x=-10y+6; x+5y=3 1 2 infinitely many none y=4x+3; 2y-8x=3 1 2 infinitely many none y-7x=-14; 7y-49x=-2 1 2 infinitely many none

### Algebra

I need to determine if they are open, infinite, or none. y = -1/4x + 1 8y = -2x + 8 Open Infinite None* y = 6x + 2 3y = 18x + 12 Open Infinite* None -2y = -x + 6 y = 1/2x - 3 Open Infinite None* y = 5x - 6 3y = 15x - 12 Open Infinite None*

### math algebra

Decide whether the equation has one solution, no solution or infinitely amount of solutions. 1: 2(x - 3) = 2x one none infinitely 2: 3(y - 3) = 2y - 9 +y one none infinitely 3: 10x - 2 - 6x = 3x - 2 + x one none infinitely 4(x + 3) + 2x= x - 8 one none infinitely

### Calculus

Find f'(x) for f(x)=(2x^2+5)^7 A. 7(4x)^6 B. 7(4x)^7 C. 28x(2x^2+5)^7 D. 7(2x^2+5)^6 E. None of these Would it be none of these because of the 4x in the chain rule?

### Calculus

Verify if correct. Determine which line is parallel to the line with Cartesian equation 2x +3y + 5=0 a) r=(-1,-1) +s(2,3), seR b) x=3t-1, y=-2t-1, teR c) x=2t-1, 3t-1, teR d) none of the above. I chose D, none of the above because none of them are multiples of the given ...

### Physics Check

1.)The making of the nuclear reactor was an advance in a)Science *b)Technology c)none of the above 2.)The development of the airplane was an advance in a)Science b)Technology *c)none of the above 3.)The discovery of gravity was an advance in *a)Science b)Technology c)none of ...

### math

The quotient for 20÷1/4 is 5. It wants to know which expression has the same quotient as 20÷1/4. A.1/2÷40 B.1/4÷20 C.15÷1/5 D.6÷1"10 None of these have the quotient of 5. So what are we doing wrong cause none have the choice of none of these

### writeteacher

Hi thanks so much for your help but I am confused- I thought in the above it was there and these however in this sentence: Mike looked for the dogs, but there were none. -- I thought the pronoun was there but someone else answered and said it was none. That someone -- Ms.Sue...

### Math

What is the scale factor as a percent that will result if the rule is applied to a point (x,y) on a coordinate grid? 1. (1.5x,1.5y) is it, 150% 15% 1.5% or none of these? 2. (0.7x,0.7y)is it 700% 7% 0.7% or none of these?

### Repost for Ramiro Moreno

math 103 - ramiro Moreno , Wednesday, September 26, 2007 at 7:16am hey man I don't know how to do this problem please I need help 1 pt) Given the function , what is its vertex? (____,________) List its -intercept(s) as a comma separated list. If there are none, type none ...

### Asympotes, Data?

f(x)= 2x/(x^2+1) Vertical: none Horizontal: none Minimum: x=-1 Maximum: x=1 Inflection Points: it seems like there are one or two, but i don't know how to factor f''(x)= 4x^3 + x^2 - 12x + 1 :/

### French

Could you check these please Part 1 Directions: Complete with either e,es,ées, or s. J'ai pris ------- des photos. J'ai envoyé --------- les photos que j'ai pris --------- à mon amie Catherine. Je les ai envoyé --------- la semaine dernière. Je les ai mis -------- dans ...

### English grammar

ex) There are two pins on the table. In this sentence, is 'there' is a derived adverb? [Second question] 1. Singular indefinite pronouns use singular verbs: e.g., anyone, anybody, each, either, none 2. Singular indefinite pronouns use singular verbs: anyone, anybody, each, ...

### English hurry

Identify the words that correctly complete the following sentence. If none of the choices are correct, choose "none of the above." In a sentence with a compound verb, each verb (Points : 1) may have a different subject must have the same subject may not have helping verbs none...

### Linear Algebra

I need help please!! How many solutions does the system of equations have? 2x=-10y+6 and x+5y=3 a. one b. two c. infinitely many d. none y=4x+3 and y=4x+4 a. one b. two c. infinitely many d. none x-4y=12 and y=1/4x-3 a. one b. two c. infinitely many d. none

### Math help!!!! Thanks in advance!!!!!!!!!!!

Activity |Boys|Girls| Total Walk|3 |6 Bike| 5| 3 Skateboard 2 | 1 Total 1. How many students chose walking as their preferred method of transportation? 6 3 9 none of these 2. How many total students participated in the survey? 10 20 15 none of these 3. What percentage of the ...

### Asympotes, Data?-Bump

If someone could help me on this, I'd appreciate it. f(x)= 2x/(x^2+1) Vertical: none Horizontal: none Minimum: x=-1 Maximum: x=1 Inflection Points: it seems like there are one or two, but i don't know how to factor f''(x)= 4x^3 + x^2 - 12x + 1 :/

### Admendment 1

Which freedom is not granted in admendment 1? religion, assesmbly, speech, or none I believe it's none but I'm not sure can you check it

### Math

1.) How many of symmetry does the figure below have? If there are no lines of symmetry, write none A.)1 B.)5 C.)10 D.)None

### Math

Choose the word "rectangle," "square," or "rhombus" to fill in the blank and make the statement true. (If none of the words can be used, then write "none.") A parallelogram is a __________ if and only if its diagonals are perpendicular bisectors of each other.

### Calculus

Which plane goes through the origin and is perpendicular to the line r=(2,-2,1) + s(2,3,-4), seR? a) 2x-2y+z=0 b) 2x+3y-4z=0 c) 2x+3y+z-4=0 d) none of the above. I got D, none of the above. I have substituted and couldn't find the answer equal to zero.

### Math Calc

Given f'(x)=(x-4)(6-2x) find the x-coordinate for the relative minimum of the graph f(x). OPTIONS: 8 6 3 None of these I think it is 3, but I am also conflicted to say none of these because I graphed the function and ant see a minimum.

### English

Reach each sentence then write each transitive verb. If a sentence has no transitive verb write none I wonder why Maria looks so happy none I love sunny days like this none Julios parents just opened a restaurant downtown opened? My mom gave me an early birthday present today ...

### Chemistry

The following questions concern the iconic Nestle Toll House Chocolate Chip Cookie recipe, shown below: 2 1/4 cups all-purpose flour 1 teaspoon baking soda 1 teaspoon salt 1 cup butter or margarine, softened 3/4 cup granulated sugar 3/4 cup packed brown sugar 1 teaspoon ...

### math (cant figure it out)

Activity Boys Girls Total Walk 3 6 Bike 5 3 Skateboard 2 1 Total ______________ What percentage of the total students chose skateboarding? 10% 20% 30% none of these** . 4. What percentage of the boys chose walking? 30%* 45% 25% none of these . 5. What percentage of the ...

### math help please

Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y = 2x + 7 The slopes...

### MATH

Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. *** The graph has a greater rate of change. The table has a greater rate of change. none of the above 2. y = 2x + 7 The ...

### math

Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y = 2x + 7 The slopes...

### biology

the clinitest tablets specifically test for which of the following: starch, hydrogen peroxided, guaicol, peroxidase, or none of the above. Is the answer starch or none of the above?

### Algebra

1) For which of the following functions is f(-5) = 2 ? a)f(x) = x +7 b) f(x) = 2x-6 c) f(x) = 3x+5 d) none of these 2) Which of the following is a function? a)(-4,1), (1,8), (-4,2) b)(-4,1), (1,-8), (-2,2) c)(-4,1),(1,-8), (1,2) d) none of these 3) what is the relationship ...

### Calculus (pleas help!!!)

Please answer the following questions about the function f(x)=e^(-0.5x^2) Instructions: If you are asked to find x- or y-values, enter either a number, a list of numbers separated by commas, or None if there aren't any solutions. Use interval notation if you are asked to find ...

### Calculus (pleas help!!!)

Please answer the following questions about the function f(x)=e^(-0.5x^2) Instructions: If you are asked to find x- or y-values, enter either a number, a list of numbers separated by commas, or None if there aren't any solutions. Use interval notation if you are asked to find ...

### Calculus (urgent!!)

Please answer the following questions about the function f(x)=e^(-0.5x^2) Instructions: If you are asked to find x- or y-values, enter either a number, a list of numbers separated by commas, or None if there aren't any solutions. Use interval notation if you are asked to find ...

### Math Help Please

Let U = {9, 10, 11, 12, 13, 14, 15, 16, 17, 18}, A = {10, 12, 14, 16}, B = {13, 17}, and C = {10, 13, 16, 17, 18}. List all the members of each of the sets. (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in the last boxes.) A ¿ B...

### Health help please!!!

Your body can get antibodies from A. immunizations B. being exposed to the virus or antibody and having your immune system make it C. none of the above D. all of the above I want to say the answer is D but the none of the above is throwing me off? Am I wrong?

### English

Reach each sentence then underline the intransitive verb. If a sentence has no intransitive verb write none. 1. Tell Rover to lie down and relax. Lie and down intransitive 2.Lay your cards on the table. none 3.A squirrel got trapped in our attic trapped intransitive 4. I ...

### English

Could you please check these sentences? Thank you. In particular, I'm not sure about the use of "none" as a pronoun and a few words concerning ecology. 1) I give people a lot of/lots of/a few/few/no presents for Christmas. I don't think "none presents" is possible. Is " I give...

### english

1) You can borrow my car -----------------------the end of the month A) until B) by C) in D) for 2) Most scholars consider 1887 to be the beginning of industrialization ----------- wine and brandy distillation in the country. A) of 8) in C) for D) and 3) He covered the journey...

### English

I have to answer these questions but i am confused...please help :) As flies to the wanton boys are we to the gods; they kill us for sport Metaphor Personification Hyperbole Litotes None of these I do not understand the sentence itself :( I wish I had a million dollars right ...

### physics

my answer for these are 1. a 2.c 3 d but not sure so please anyone see if i am correct 1. In which of the following cases is work done on the object? A. Lifting an object off the floor. B. Pushing an object, but it does not move C. Carrying an object at a constant velocity D. ...

### math

Activity Boys Girls Total Walk 3 6 Bike 5 3 skateboard 2 1 3. What percentage of the total students chose skateboarding? (1 point) 10% 20% 30% none of these *** 4. What percentage of the boys chose walking? (1 point) 30% **** 45% 25% none of these 5. What percentage of the ...

### AP Literature

Identify the figure of speech in this sentence: "Anyone who calls a spade a spade should be compelled to use one." --Oscar Wilde Simile Metaphor Personification Analogy Hyperbole None of these I'm torn between personification and none of these, however I'm not entirely sure..

### physics

1. In which of the following cases is work done on the object? A. Lifting an object off the floor. B. Pushing an object, but it does not move C. Carrying an object at a constant velocity D. None of these 2. The energy of a system increases when A. a force is applied to it B. ...

### Math

Identify the sampling,method. You want to determine the number of text messages students at your school send in a month. You go to the cafeteria and ask every 4th student that walks in. a- random b- systemic c- stratified d-m none of these My answer is none of the these ...

### english

In what mood (or case) are the following sentences? 82. Zach wishes that he didn’t live in a small apartment. A: indicative mood B: imperative mood C: subjunctive mood D: none of the above 83. He uses headphones when he practices at home. A: indicative mood B: imperative ...

### Physical Education

Your body can get antibodies from? A. Immunizations. B. Being exposed to the virus or antibody and having your immune system make it. C. None of the above D. All of the above D? I don't know though becuase All of the above is under none of the above. Im really confused.

### finance (bonds vs. perferred stock)

Corporations prefer bonds to preferred stock for financing their operations because A. preferred stocks require a dividend B. bond interest rates change with the economy while stock dividends remain constant C. the after-tax cost of debt is less than the cost of preferred ...

### English

I need to list the prefix root and suffix of these words: Interrupt Prefix: In or inter? Root:rupt Suffix:none Containment P:Con R:Tain S:ment Despise P:DE r:spise S: none Reversal P:re R:vers S:al Scribble Root: scrib S

### Calculus

Find the absolute maximum and absolute minimum of f on the interval (-4, -1]: f(x)=(x^3+8x^2+19x+12)/(x+4) A. Maximum: None; Minimum: (-2, -1) B. Maximum: (-4, 3); Minimum (-1, 0) C. Maximum: (-4, 3); Minimum: (-2, -1) D. Maximum: None; Minimum: (-1, 0) E. none of these

### Chemistry

1) In the reaction NaOH + H2O --> Na+ + OH-, sodium hydroxide is the: A) Lewis acid B) Brønsted-Lowry acid C) Arrhenius base D) Amphoteric substance E) None of the above (I think it's C) 2) The conjugate acid of the sulfide ion is: A) S^2- B) HS- C) H2S D) H3S+ E) None of ...

### theory of machine

1. the contact ratio is....... (a)zero (b)more than one (c)less than one (d)none of these 2. the ratio of maximum displacement of the forced vibration to the deflection due to the static force is known as................ (a)damping factor (b)magnification factor (c)damping ...

### SAT math

I've really been stuck on these questions: 1. If ( x + 2 y )= -4 and am = 6, then 2amx + 4amy = ____ ? 2. The integers x and y are such that x > y > 0 and x 2 - y 2 = 31. If x – y = 1, what is the value of x + y ? 3. What is the value of a that will make this system of...

### algebra

Find all rational zeros of the polynomial function P(x)=x^4 + 2 x^3 - 13 x^2 + 4 x - 30. Enter the rational zeros in a comma separated list. If there are none, enter "none". -3| 1 2 -13 4 -30 -3 15 -6 30 1 -5 2 -10 0 so (x+3)(x^3-5x^2+2x-10 so 5| 1 -5 2 -10 5 0 10 1 0 2 so (x+...

### math

Order each of the following decimals from greatest to least: a)1.4519, b)1.4519, c)1.4519, d)1.4519, e)-0.134, f)-0.13401, g)0.13401 For this one there lines over these numbers a)519 b)9 c)none d)19 e)none f)401 g)401

### physics

Which of the following does not involve a force? a.tug of war b.pushing a wagon c.riding a bike d.jumping e.None of the above f.towing a car g.hitting a ball Is the answer e. none of the above? I know a,b,c,d, and g exert a force, but I am not sure about f. towing a car.

### Math

1. What is the largest integer that is a factor of all three of the following numbers: 2160, 1344, 1440? a) 6 b) 8 c) 12 d)16 e) none of these 2. The annual income of a family is budgeted as follows: 1/10 for clothing, 1/3 for food, and 1/5 for rent. This leaves \$1320 for ...

### math

A nine digit number having all its digits distinct and none being zero can be partitioned into two as per well. It turns out that every time the left part is always divisible by the number of digits it has. Which of the following number satisfies this property? a. 183654927 b...

### math

when asked how many pennies she had a collector said If I arrange them in stacks of five, none are leftover if I arrange them in stacks of six, none are leftover if I arrange them in stacks of seven one is left over. What is the least number of coins she could have

### Calculus

Consider the function f(x)=x−15x^1/3. For the following questions, write inf for ∞, -inf for −∞, U for the union symbol, None if no answer exists, and separate by a comma if more than one answer exist. a.) The domain of this function: (-inf,inf) . b.) ...

### Government US

30. Which of the following social welfare programs was supported by a majority of congressional Republicans at the time of enactment? c. the 1965 Medicaid program e. None of these answers is correct. I would say none, since the republicans never supported any Public assistance...

### Chemistry

The Fe3+ ion has electronic configuration of d5. if all five electrons are unpaired. what is the spin state? (a) singlet (b) sextet (c)septet (d)Octet (e) none of the above the answer is____ Also Which of the following 1H are most deshielded relative to the TMS standard at 0 ...

### Biology

Human vision can distinguish objects down to about a 4th of a millimeter (~250 micrometers). Given this, which of the following are generally visible to the human eye? Proteins Bacterial cell Animal cell Poxvirus Ribosomes Plant cell None of the above I think none of the above...

### Help please criminal j.

1. In re Gault assured juveniles a. the right to a jury trial b. all the above c. due process in the legal system d. the right to be tried as an adult All the above 2. Obtaining a confession by__ is constitution a. misrepresentations b. psychologicalcoercion c. physical ...

### crithical thinking

Critical Analysis Forms Fill out one form for each source. Source 1 Title and Citation: 1 Identify the principal issue presented by the source. 2 Identify any examples of bias presented by the author. If none exist, explain how you determined this. 3 Identify any areas that ...

### Resume(English)

Resume is also known as: cirriculum vitae job application cover letter none of the above Would it be job application, or none of the above?

### science

what are tow types of environment present in every habitat? I'm not sure what you are asking. The geological the the climate aspects are always present. Is this what you want? I hope this helps. If not, repost your question in more specific terms. Thanks for asking. All toes ...

### chemistry

A flask contains this equilibrium Fe3+(aq) + SCN1-(aq) <======> FeSCN1-(aq) What is observed if a few drops of iron(II) chloride is added to this equilibrium? a it becomes darker red b it becomes lighter red none of the above c it becomes colourless d. nothing happens e...

### Math

1.How many solutions does the system of equations have? y=6x+2 y=6x+4 a. one b. two c. infinite d. none 2. How many solutions does the system of equations have? y=1/2x-3 x-2y=6 a. one b. two c. infinitely many d. none 3. How many solutions does the system of equations have? y-...

### 7th grade science Ms. Sue please help if you can

1. Violent storms generally form along _____. (1 point) occluded fronts cold fronts warm fronts stationary fronts 2. Areas of low pressure usually have _____. (1 point) cloudy weather good weather descending air none of the above 5. Tornadoes can form when wind at different ...

### English

Identify the degree of comparison for the bolded word. This new magazine about computers is very COLORFUL. A.) Positive B.) Comparative C.) superlative D.) none of the above The article on Web design is LONGER than the one on games. A.) Positive B.) Comparative C.) superlative...

### algebra/ please ck my answers

Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 50 15 18 60 36 21 22 22 34 24 ...

### Calculus

Can someone help me finish this question... I got most of the answers but need help. Suppose that f(x)=3x−6x+5. (A) Use interval notation to indicate where f(x) is defined. If it is defined on more than one interval, enter the union of all intervals where f(x) is defined...

### Chemistry

2. 12.5 ml of 0.280M HNO3 and 5.0mL of 0.920M KOH are mixed. To make the resulting solution neutral, which of the following should be added? -1.1 mol HCl -1.69 mL of 0.650M HBr -0.55 mmol Mg(OH)2 -2.2mL of 0.50M LiOH -none of the above; already neutral -KOH is in excess by 0....

### None

If there's three there's two If there's two there's one If there's one there's none. What's the answer?

### LAL! check my work

check if my sentences is correct part.= participle phrase ger.= gerund phrase inf.= infinitive phrase or none and the phrases are capitalized . are they correct 1. the news showed pictures of houses destroyed by the hurricane. NONE 2. would you ever want TO GO ON A 2-WEEK TRIP...

### english

The following questions have sentences with blanks. Choose the answer option which will correctly rill the blank 1) You can borrow my car the end of the month A) until B) by C) in D) for 2) Most scholars consider 1887 to be the beginning of industrialization wine and brandy ...

### math

What percentage of the total students chose skateboarding? (1 point) 10% 20% 30% none of these if 2 bys and 1 girl chose skateboarding? What percentage of the boys chose walking? (1 point) 30% 45% 25% none of these

### Grammar Please hurry please

Identify the words that correctly complete the following sentence. If none of the choices are correct, choose "none of the above." In a sentence with a compound verb, each verb (Points : 1) may have a different subject must have the same subject may not have helping verbs none...

### Math

1. How many solutions does the system of equations have 3x=-12y+15 and x+4y=5 a. one b. two c. infinitely many*** d. none 2. How many solutions does the system of equations have y=6x+2 and 3y-18x=12 a. one b. two c. infinitely many d. none*** 3. How many solutions does the ...

### Math help and check

Which kind of function best models the set of data points (–1, 22), (0, 6), (1, –10), (2, –26), and (3, –42)? linear **** quadratic exponential none of the above 2. Which kind of function best models the set of data points (–3, 18), (–2, 6), (–1, 2), (0, 11), and...

### Chemistry (Help)

I'm having trouble figuring out this one. Can you please help? I haven't gotten a response to any of my questions. Chemical formula: Na Name: Sodium Bond Type (intramolecular FOA): metallic bond VSEPR molecular shape: none Central Atom Hybridization: none? Molecular Polarity: ...

### Calculus

Use analytical methods to find the exact global maximum and minimum values of the function f(x)=8x-ln(4x) for x >0. If a global maximum or minimum does not exist, enter the word NONE. For the global maximum at x=none, But for the Global minimum at x=? Is the Global minimum ...

### English

Uther Pendragons willingness to give his son Arthur to Merlin in exchange for spending just one night with Igraine reflects the idea of courtly love chivalry "contemptu mundi" NoNE OF THE ABOVE This confuses me, I don't understand why he gave his child up, I don't think it ...

### Pre-Calculus-check answers

The graph of the equation y=x^3-x is symmetric with respect to which of the following? a) the x-axis b) the y-axis c) the origin d) none of these Answer: c 2) The graph of an odd function is symmetric with respect to which of the following? a) the x-axis b) the y-axis c) the ...

### Physics

I need help with these two uestions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c) 1.76J d)4.4J e) None of ...

### Physics

I need help with these three questions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c) 1.76J d)4.4J e) None of ...

### Physics

I need help with these three questions, thanks 1)The man lifts a box that weght 185N. The box is lifted 0.80m. How much work does the man do on the box? 2) 0.180kg ball falls 2.5m How much work does the force of gravity do on the ball? a)44J b) .45J c) 1.76J d)4.4J e) None of ...

### Chemistry

What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a 6.00 M KCl solution to a volume of 0.500 L? A. 1.67 B. 0.600 C. 0.0167 D. 3.0 E. none of these My initial thought was to take the 6.00 M KCl/0.500 L, for an answer of 12. This baffles me that ...

### Please check my Calculus

1. Find all critical values for f(x)=(9-x^2)^⅗ A. 0 B. 3 C. -3,3 D. -3, 0, 3 E. none of these I got D. I found the derivative and solved for critical numbers. 2. Find all intervals on which the graph of f(x)=(x-1)/(x+3) is concave upward A. (negative infinity, infinity) ...

### Please check my Calculus

1. Find all points of inflection: f(x)=1/12x^4-2x^2+15 A. (2, 0) B. (2, 0), (-2, 0) C. (0, 15) D. (2, 25/3), (-2, 25/3) E. none of these I got D. I found the second derivative and equaled it to 0 and solved for x. I plugged the x values in to get my points. 2. Find the ...

### algebra

School play tickets are \$5.00 for none students and \$3.00 for students. 937 ticket were sold for \$3943.00 How many student tickets were sold and how many none student tickets were sold ?

### chemistry

If a mole of hydrogen gas (H2) contains 6.02 x 10^23 molecules, how many molecules are there in 10.0 moles of hydrogen gas? Answer 60.20 x 10^23 molecules 6.0 x 10^23 molecules 6.02 x 10^20 molecules 6.02 x 10^24 molecules None of these is correct. would it be 6.02x10^24 or ...

### english

21. identify the appropriate punctuation for the underlined word or phrase In High School, I enjoyed reading (The Catcher in the Rye)<<underlined A. underlined B. italics c. quotation marks d. none 20. identify the appropriate punctuation for the underlined word or ...

### Please check my Caclulus

1. Find all intervals on which the graph of y=(x^2+1)/x^2 is concave upward. A. (negative infinity, infinity) B. (negative infinity, -1) U (1, infinity) C. (negative infinity, 0) U (0, infinity) D. (1, infinity) E. none of these I got C. I found the second derivative and used ...

### math

2. In a certain state, it has been shown that only 56% of the high school graduates who are capable of college work actually enroll in colleges.Find the probability that, among the 11 capable high school graduates in this state, each number will enroll in college. c.At least 4...