Calculus (Answer Check)

85,687 results, page 29


1. "Similarly", "on the other hand", and "however" are signals that the author of a source is using which of the following text structures? (1 point) sequencing comparison and contrast cause and effect problem and solution check my work my answer is C

Language Arts

Which of the following sentences uses a pronoun in the possessive case? A. Ask Sarah to pass the chips to me. B. Check for my signature on the front page. C. He went to the park to find the dog. D. The winner of the contest was she. Is the answer B? Thank you


1)Which geographic feature marks the last natural obstacle for Georgia’s rivers on their way to the Atlantic Ocean? A)the Floridian Aquifer B)the Valley and Ridge region C)the Fall Line D)the Marshes of Glynn<<?? Check my answer please.

Social Studies 7th Grade

Check my work please! Although India ahs only 16 official languages, people there speak more than ________ language. 1.30 2.50 3.100 4.800 I belive the answer is 1.


I have posted this question earlier and had the answer given to me this way. But my teacher needs to know what type of factorization I used and I have tried to figure it out but have NO clue!! This is the question. Solve the following inequality. write your answer in interval ...

Science - Please Check This Answer

My problem is: When Christy takes her pet dog for a walk, the dog walks at a very consistent pace of 0.45 m/s. There are 20.1 m between the front of Christy’s house to the nearest dog park. How far will Christy’s dog have walked toward the park after 25 s? My answer is: ...

math-check my work

I have a bag of m&m's with 52 in it and on the pkg it states it weighs 47.9g. If I divide by 52 it gives me .92g per m&m. To find out what the mass is of a mole of m&m's do I Multiply 6.02 x 10^23 x .92g for my answer?


please check my answer thanks :) In addition to the information you include in a document, the_________ of your writing sends a message to the reader tone method length phase I picked tone

History of health care

Please check my answer tahnks :) Capitation is the least type of medical service reimbursement used today True or False I said True

Anatomy and Physiology

Please check my answer thanks True or False The process of breaking a complex substance down into smaller components is called metabolism I said true

Health/ Basic Clinical Procedures

please check my answer thanks True or False the review of systems is a history of the patient's previous diseases, injuries and operation . I said False

Health/ Basic Clinical Procedures

pelase check my answer thanks true or false Continuous is a type of fever which the temp fluctuates but always remains elevated I said True

check geo

in the 1800s ___________ opened up the western united states to immagration and buisness. A. The transcontinental railroad B. The underground railroad C.Route 66 D.Cattle farming .The answer I chose was B .


Which should be used a permutation or combination? Determine the number of different ways in which a committee of four can be chosen from a group of twelve members? please check my answer = combination


When a physician is billing under the RBRVS system, he or she is using A. APCs. B. HCPCS/CPT codes. C. MS-DRGs. D. ICD-9 procedure codes My answer is (B) check this one for me please

Can you check my Math answer please?

According to the first derivative test, a differentiable function must have a relative minimum between any two relative maxima. True.

English Check

The advice was meant for ____ A)you and i B)she and i C) you and me Hello i need help. My original answer was A)you and I. But then I started reading a book on English grammar and it says it should be C)she and I since they are subject pronouns.

Chem answer check

Does this look correct? Thx! Write the balanced equation for the reaction between solid copper and silver nitrate, that produces solid silver and copper(II) nitrate in solution. Include your experimentally determined mole ratios for the copper and silver atoms as coefficients...


Would someone please check my answers to this problem: The license fee for a car varies directly with the value of the car. The fee for a car that is valued at $19,500 is $292.50. What is the constant of proportionality? My answer is: .105 cents per every one dollar of car ...


A rectangle is bounded by the x axis and the semicircle = square root 25-x^2. What length and width should the rectangle have so that its area is a maximum? When I worked the problem out(which is a bit detailed). I started with y = square root 25-x^2 then A = 2x square root 25...

Math ( Can You check my Work?) = 3n - 1 2. an = 2(2n - 3) = 4^n = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 = -5 and an = an-1 - 3 for n ≥ 2 9. a1 = -6 and an = -2an-1 for n ≥ 2 10.a1 = 4 and an = 3an-1 + 2 for n ≥ 2 11. Find a8 when a1...


Tried this problem severeal ways. Get a different answer every time, but it is in the same ballpark. Any help would be much appreciated. How many zeros are at the end of the product of the first fifty positive integers?

Math: Calculus

Find the smallest positive value of which satisfies -- x=4.100cos(2.800x) Give the answer to four places of accuracy._________ Remember to calculate the trig functions in radian mode.


This problem has two parts but I can only see this so far. I probably over thinking..what is this asking for? How do I answer it? To evaluate lim x→ infinity sqrt(x^2 + 4) *first consider that as x becomes infinitely large x^2+4 -> __?__


Use left endpoints and 9 rectangles to find the approximation of the area of the region between the graph of the function cos2x and the x-axis over the interval [0, pi/2] . Round your answer to four decimal places.


Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem given below. (Round your answer to four decimal places.) y' = 1 − xy y(0) = 0 I don't even know how to start!

Spanish 3

Hello! I need someone to check over my Spanish answers and see if I have them right. And if I don't, can someone please help me? Thanks a bunch! :) Directions: Re-write using Direct and Indirect Object Pronouns when needed. 1.) I read the book to Helena. My answer: Leí el ...


Find the exact value of the given expression. (tan17pi/12 - tan pi/4) / (1+tan 17pi/12 tan pi/4) can you help with this? i got the answer 1/ squareroot 3

English-Macbeth (Please check)

1. The witches told Macbeth he would first become: a) king b)Thane of Glamis c)Thane of Cawdor d)a father answer c. 2. Lady Macbeth asks the spirts to "unsex" her so she will be: a) compassionate b) more like a man, agressive and unmoved by pity c)physically strong d)able to ...

Math! Please Check My Awnser!

Hello! I need some help with math! I have tried to do this but I am unsure about my answers. My I will identify my answers with a "<--". Also, if I have missed one, please tell me the right answer! Also, Thanks for your help in advance! Have a nice day! 1. Which of the ...


Hi, I have a calculus question that I just cannot figure out, it is about volume of cross sections. I would very much appreciate it if someone could figure out the answer and show me all the steps. A solid has as its base the region bounded by the curves y = -2x^2 +2 and y = -...


Hi, I have a calculus question that I just cannot figure out, it is about volume of cross sections. I would very much appreciate it if someone could figure out the answer and show me all the steps. A solid has as its base the region bounded by the curves y = -2x^2 +2 and y = -...


If you start a project at 5:45pm and you check on the project every 30 minutes for 3 hours, what times will you check on the project


Can someone please check my answers? Which of the following settings are evident in Unit 4's stories of Twain, Jewett, and Chesnutt? Check all that apply. American West* pos-Civil War South* New England* Gold Coast


Can you please check these also Directions: Rewrite each sentence in the negative. 1. Il dit quelque chose à son copain. Answer: Non, il ne dit rien à son copain. 2. Et son copain écrit quelque chose. Answer: Et son copain n'écrit rien. 3. Il voit quelqu'un. Answer: Il ne ...

Solved-Calculus-Please check?

the equatorial radius of the earth is approximately 3960 miles. suppose a wire is wrapped tightly around the earth at the equator. how much must this wire be lengthened if it is to be strung on 10 feet poles above the ground? (1 mile=5280 feet) delta y= dy/dx (2pir) * deltax ...

math check

Simplify each rational expression. 3a(a-4)^2 over a^2(a-4) I don't understand how the answer would be 3(a-4) over a because the a-4 would cancel out??? 4-y^2 over y^2-2y once I simplify I get (2-y)(2+y) over (y-2)(y+2) I don't understand how the answer is -(y+2) over y 9-r^2 ...

Language Arts

What is the pattern of stressed and unstressed syllables and how many metric feet are their in the following line? "Under a spreading chestnut tree" My answer is that the pattern of stressed and unstressed syllables is unstressed, stressed and there are 4 metric feet, is this ...

college calculus

find a and b so that f(x)=x^2+ax+b has a local min at (6,-5) i found the derivative: f'=2x+a then i found a 0=2x+a 0=2(6)+a 0=12+a a=-12 but i can't seem to get the correct value for b. i plugged -5 into the original function, but my book says the answer is b=31. how do i get ...


x^2 + y^2 = 25 3x + y = 15 Find the two points of intersection. I don't just want the answer, if you could tell me how to find it, it would save my life. The sqaure root is making it really hard for me to understand.

ap calculus

Find the volume if the region enclosing y=1+ sqrerootof x, x=0, y=0, and x=9 is rotated about the x axis. I used the disk method and came up with the integral: pi integral (from 0-9) of (1+sqrerootx)^2 dx, but my answer was wrong.


Find two unit vectors that make an angle of 60° with v = 3, 4 (Enter your answer as a comma-separated list of vectors. Round your answers to four decimal places.)

calculus 2

Consider the solid obtained by rotating the region bounded by the given curves about the line x = -3. y = x^2 , x = y^2 Find the volume V of this solid. I keep finding the wrong answer.


Solve : sec^2(x)= ã3*tanx + 1 on [0,radian-180 degrees) - couldn't find the symbol for radian on computer please try and explain how you got your answer best as yu can thanks so much :)


Specify the region over which the following function f(x) is increasing and the region where it is decreasing. f(x)= √-x Your answer should be either open intervals or the empty set ϕ.


I need help creating an equation for a piecewise defined function with two different rules, that is continuous but not differentiable at the point where the rules change, x=3. Please help to justify the answer.


Find the average rate of change of the function over the given interval. You must reduce and simplify your answer, if possible. a. f(x)=cot x, [pi/6, pi/2] b. f(theta)= -2 + cos (theta), [-pi, 0]


A freshly brewed cup of coffee has temperature 95°C in a 20°C room. When its temperature is 68°C, it is cooling at a rate of 1°C per minute. When does this occur? (Round your answer to two decimal places.)


A freshly brewed cup of coffee has temperature 95°C in a 20°C room. When its temperature is 68°C, it is cooling at a rate of 1°C per minute. When does this occur? (Round your answer to two decimal places.)


A spherical ball is being filled with air. When the radius r=9cm, the radius is increasing at a rate 4 cm/s. How fast is the volume changing at this time (leave your answer approximate)?

Calculus Help Please!!!

If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible.


I'm studying for the AP exam and I can't figure this problem out. I thought the answer was negative infinity but that isn't an option. Thank you in advance! What is the limit as x approaches infinity of (9x-x^2-7x^4)/(x^3+12x)? a. 9 b. 7 c. -7/12 d. -7 e. Does not exist


The function defined below satisfies Rolle's Theorem on the given interval. Find the value of c in the interval (0,1) where f'(c)=0. f(x) = x3 - 2x2 + x, [0, 1] Round your answer to two decimal places.


Find all solutions to the equation with 0≤α≤2π. Give an exact answer if possible, otherwise give value(s) of α accurate to at least four decimal places. 4tan(α)+5=2a=


Could you please check these Thanks you!!! Directions: Complétez Part 1 1. Au bord de la mer, on va à la ----------------. Answer: plage 2. Il faut mettre de la ---------- quand on prend un bain de soleil. Answer: créme solaire 3. Laure apprend à nager. Elle a un très bon...


The nonmetals in Groups 6A and 7A ____. a. lose electrons when they form ions b. have a numerical charge that is found by subtracting 8 from the group number c. all have ions with a –1 charge d. end in -ate Check my thinking but I don't think the correct answer is listed. I ...

Calculus. Limits. Check my answers, please! :)

4. lim (tanx)= x->pi/3 -(sqrt3) 1 (sqrt3) ***-1 The limit does not exist. 5. lim |x|= x->-2 -2 ***2 0 -1 The limit does not exist. 6. lim [[x]]= x->9/2 (Remember that [[x]] represents the greatest integer function of x.) 4 5 ***4.5 -4 The limit does not exist. 7. lim...

Math 8R - HW Qs. Check

Write the product of (1.7 x 10 to the 9th power) x (1.4 x 10 to the 2nd power) in scientific notation My Answer - 2.38 x 10 to the 11th power am i correct and please reply this post


Which sentence uses who correctly? a. Who did you call? b.Who is the person that I should call? c.To who are you speaking? d. From who did you receive the call? i think the answer is A but i just want someone to check and see


Please double check me. A community service organization has 19 men and 7 women in its memebership. Write the ratio of women to men. a 19/7 b 7/19 c 19/26 d 7/26 answer: b Write a proportion that is equivalent top the statement: If 3 gallons of gasoline cost $5.37, then 8 ...


Three identical balls, with masses M, 2M, and 3M are fastened to a massless rod of length L as shown. The rotational inertia about the left end of the rod is: That's the layout below. Would calculus be needed in this problem (intergration) because then Im in trouble. I know ...

Calculus Part 2

y = tan(sqrtx) Find dy/dx. So I found it and I got the answer as sec^2(sqrtx) but the answer is (sec^2(sqrtx))/2(sqrtx)...why? ---------------------------------- 2) Find the line which passes through the point (0, 1/4) and is tangent to the curve y=x^3 at some point. So I ...


You are expecting a tax refund of $4,000 in 4 weeks. A tax preparer offers you an "interest-free" loan of $4,000 for a fee of $50 to be repaid by your refund check when it arrives in 4 weeks. Thinking of the fee as interest, what simple interest rate would you be paying on ...

math check please

1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple of 3, 6, 9 answer 18...

One more Chem

One more A helium balloon has a volume of 2.30 L at 23.5 deg C and a pressure of 1.00 atm at sea level. the ballon is released and floats upward. At a certain height the atmospheric pressure is 0.810 atm and the temp is 12. C. What is the volume of the balloon? ????? ??? (P1V1...

Math Algebra

A quick question to check my answer. Trains A & B are travelling in the same direction on parallel tracks. Train A is travelling at 100 miles per hour and train B is travelling at 110 miles per hour. Train A passes a station at 2:10 A.M. If train B passes the same station at 2...


Find the derivative of y with the respect to x: y=sin‾²(x³) y'=cos‾²(x³)(3x²) y'=3x²cos‾²(x³) How come my answer is incorrect? Thanks in advance.


This is the question: i[dot]imgur[dot]com/EHneTuB[dot]jpg Am i correct in simply adding 1 + (-3), and equates to (-2) being the answer.

Health of young children

A teacher is in a prime position to observe children because A.the teacher sees children in relation to other children of the same age. B. the teacher sees each child for fewer hours than the parent and can, therefore be objective. C.he or she is often involved in children's ...

French check my answers

I had to write 20 sentences , 2 sentences for each answer with 10 verbs in the present form and reprise. Please check my answers and help me to correct them, thanks 1. Je chante. Je peux chanter. 2. Tu dessine. Tu peux dessiner. 3. Il danse. Il peut danser. 4. Elle marche. ...


A couple of assignment questions: Assume that the market for annual physical check-ups is in equilibrium, and not everyone gets an annual physical check-up. What is the effect on price and quantity if a government regulation fixes prices at the current level and requires ...

Language Arts

Please check my answers to these questions: Which of the following is best defined for drama? story with props, story written be performed by actors, and story with a happy ending. My answer is A. Second question What term describes construction onstage that suggest time and ...

Calculus (pleas help I really need to check this)

Assume that each of the follwing functions gives the position of an object at time t. Find the velocities indicated by setting up and evaluating a limt algebraically. (a) s(t) = 3t^2, Find v(-1). (b) s(t) = 1/t , Find v(2). (c) s(t) = square root of t, Find v(1). The answers ...

Calculus 12th grade (double check my work please)

2- given the curve is described by the equation r=3cos ¥è, find the angle that the tangent line makes with the radius vector when ¥è=120¨¬. A. 30¨¬ B. 45¨¬ C. 60¨¬ D. 90¨¬ not sure A or D 2.) which of the following represents dy/dx when y=e^-2x Sec(3x)? A.3e^-2x ...

Algebra :/

A bank offers two checking plans anywhere charge .15 cents a check; accucheck cost .77cents a month plus 8 cents per check. For what number of checks will the accucheck plan cost less than anywhere check? Less than 11 checks? More than 11 checks? 11 checks? 11 or more checks?


calculus help needed example: sin-1(-1/2) how do you figure this out? The sin^-1 means the arcSin, or the angle whose sine is ... so sin^-1(1/2) is the angle whose sine is -.5, which is -30 degrees. In your calculator, put in -.5, then press INV sin. so as my answer do i put ...


The time (sec) that it takes a librarian to locate an entry in a file of records on checked-out books has an exponential distribution with lambda symbol=0.5. a)What proportion of all location times are less than 20 sec? At most 20 sec? Atleast 25 sec/ Between 10 sec and 25 sec...


The length of a rectangle is 5 inches less than 3 times the width. The perimeter of the rectangle is 14 inches. Find the length and width of the rectangle. I did this: Length 3x-5; width 3x Then I did guess and check and came up with X=2 solving the problem with a perimeter of...


Can you check these also thanks. Directions: Récrivez les phrases au passé composé. Le passé composé: être ou avoir. 1. Marie monte au troisième étage. Answer: Marie est monté au troisimème êtage. 2. Elle monte ses bagages. Answer: Elle a monté ses bagages. 3. Elle...


I am in Honors Pre-Calculus and am having a hard time understanding my teacher. I feel so stupid. Does anyone have any suggestions on a website that might give me some insight into what I am doing wrong? Thanks!


Use calculus to find the volume of the following solid S: The base of S is an elliptical region with boundary curve 9x^2+4y^2=36. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.


Please check my answer thsnks :) When preparing a formal business presentaion, the phase that can make or break your report is the _________ phase. 1 2 revision outline 3 4 organization writing I picked 3


Please check my answer thanks You bought 4 chairs for $22.oo each a table for $212 and an umbrella for $85 what is the total bill if your sales tax rate is 6% 22x4=88 then add 88 212 + 85 ___________________ 385 x 6% _________________

Health/ Basic Clinical Procedures

please check my answer thank you True or Faise I said True Cilia prevent the entrance of pathogens into the body by providing an acidic envioroment

behavior problems (dogs)

Please check my answer thanks When a well-trained dog is placed in a stay and ignores a distraction, the dog is showing A. intelligence. B. sociability. C. dominance. D. impulse control. I picked D

Algebra 1B

I can not figure out the answer to this problem. (^6)(-7^6+5) I'm not sure if that sign is correct. It's suppose to be the symbol that looks like a check mark and goes over the 6 on left and over the 6+5 on right. Please help

Language Arts (Check answer)

because the story is written as a series of dated reports, we can see that the story is structures according to a. Cause and effect b. Chronological order c. Comparison and contrast d. Problem and solution ***


The rock in a lead ore deposit contains 84% PbS by mass. How many kilograms of the rock must be processed to obtain 2.3 kg of Pb? WebAssign will check your answer for the correct number of significant figures. kg

College Algebra 1

Factor completely. Remember to look first for a common factor and check by multiplying. if polynomial is prime, state this. -36a^2-96ab-54b^2 I couldn't find the right answer.

Check my french answer?

3. It is customary to greet someone on the street with "allô". (2 points) true false i think its false only causes theres many ways to say hello. any input?


Topic sentences in body paragraphs should usually show some relationship to an idea from the introduction or thesis statement. 1. True 2. False I answered true. Check my answer for me and thanks.


can you check my work? In exercises 10-12, sketch the curve represented by the parametric equations. Then eliminate and write the corresponding rectangular equation whose graph represents the curve. 10. x=t2-6 y=1/2t-1 answer: t=2y-6= (2y+2)2-6 =4y2+8y-2

Algebra (answer check)

Where is the vertex of the graph of y equals negative x squared plus 2 x plus 5 located? (1,5) < it's not this one (1,6) (-1,3) <-- (-1,2) Which values best approximate the solutions of -4x^2+7x+5=0? 0.9 and 2.3 0.9 and 5 -0.5 and 2.3 <-- -0.5 and 5 What is the ...

Calculus prince@18

let the function h(x)= (integrand symbol from 2 to x^2)arctan (t) dt. Find h'(x). This question confused me because i know the derivative of an integral is the original function. I just need help with finding the derivative of that integral. I don't know how to post integral ...

AP Calculus AB

Hello! I'm having trouble with this related rates problem: A 5ft tall person is walking away from a 16ft tall lamppost at a rate of (2/x) ft/sec, where x is the distance from the person to the lamppost. Assume the scenario can be modeled with right triangles. At what rate is ...


The limit from x--> infinity of x^(3/x) i keep getting 3/infinity, which is infinity and this answer is incorrect.


lim t-> -infinity for sqrt(4t^2-5t-1)/(2t-3) I get infinity or -infinity, but the real answer is -1. How does this occur?


Differentiate 3x+2(37,500,000/x) I know the answer is suppose to be 3(x^2-25,000,000)/x^2 but I'm not sure how to get there.


Who is Scyld? Where is he from? Where does he go? What does he do? Why does the poem begin here rather than with Hrothgar and Grendel? Scyld id Beowulf's father. Scyld was a Danidh king from the Scandion Lands. Scyld leaves to protect Lord Frea where he dies. The people send ...

time and stress management

progessive mmuscle relaxation is a technique used for (a)falling asleep (B)becoming aware of tension in muscles (C)prepping surgery patients (d)raising blood pressure my answer is b to achieve a low state of arousal,you need to (a)control breathing,thought ,and tension within ...


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