Calculus (Answer Check)
88,628 results, page 26

Geometric series  Check my answer
What is the first term in a geometric series with ten terms, a common ratio of 0.5 and a sum of 511.5? I got 256 as my answer. 511.5=a1[1(.5)^10]/11/2 511.5=a1(1023/1024)/1/2 511.5=a1(1023/512) > divide by both sides 256=a1 
Calculus
I need to find the slope of the graph of the function at the given point. Function: f(theta)=4sin(theta)(theta) Point: (0,0) I tried finding the derivative of the function at theta=0, but I got 0 for an answer. I checked the answer in the back of my book and it is 3. I just ... 
Logical Fallacies
SECTION A Please respond to ALL FOUR questions in this section. Be sure to include a 12 sentence explanation of your answer (i.e., why is that the correct answer), not just the letter of your choice. 1.) I should get an ‘A’ in this class because I really need one. (a)ad ... 
Physics waves check answers please
1. If a bat emits 10 sounds in 5 seconds, what is the frequency of the bat's vocal outbursts (rounded to first decimal place) My answer: 2.0 Hz 2.If one crest has a 3 cm amplitude and interacts with another pulse to produce a crest 8 cm high this demonstration" a) constructive... 
res ipsa loquitur
please check my answer thank you What is res ipsa loquitur and what does it do ? My answer : Res ispa loquitur is a latin tern meaning the thing speaks for itself. This theroy is not often used. Res ispa loquitur is a rule of evidence that creates a presumtion that the ... 
Anatomy and Physiology
Hi! Thanks for helping me out! ____ 5. In the anatomical position, the body is facing _____ with arms (1 point) a) forward, hanging downward b) backward, hanging downward c) forward, raised upward d) backward, raised upward My Answer: A Could someone please check my answer? ... 
English
Hello, can someone please check my answer? Which sentence best expresses the meaning of the following aphorism? Fools rush in where Angels fear to tread.  Alexander Pope A. Angels and fools are never seen together. B. When angels know to stay clear, fools come rushing in. C. ... 
social studies
_________drove an ambulance packed with explosives into a crowded Kabul street on Jan. 27, setting off an enormous blast that killed at least 95 people and injured 158 others, adding to the grim toll in what has been one of the most violent stretches of the long war, Afghan ... 
one english question answer check
15. A Works Cited list is a list of (1 point) sources you quoted in your research paper. sources you consulted while doing research. texts written by experts in your research subject. texts recommended by other writers on the subject. It's either A or B my answer would be A ... 
vocab
does anyone have improving vocabulary skills 4th edition? all i need is sentence check 2 answers and the final check answers and i'll be done with my homework for tonight. 
math
Trapezoid One: Has a top base of 187.5ft, a bottom base of 397.5ft, and a height of 165ft. I got the answer 48,262.5, how would i check if this is correct? Trapezoid Two: Has a top base of 397.5 ft, a bottom base of 225 ft, and a height of 225 ft as well. I got 70,031.25 ft^2... 
Math
Please double check my answer. On three consecutive passes, a football team gains 7 yards, loses 22 yards, and gains 49 yards. What number represents the total net yardage? My answer: The total net yardage is 34 yards. 
Science
Can someone check if these are right: Tell the reaction rate 1.)Question: one antacid tablet is placed in a glass of cold water, while another table is placed in a glass of hot water. Answer:TEMPERATURE 2.) Question: a mixture of baking powder, flour, sugar, and eggs is placed... 
English
I need to check my answers. The assignment was to write the appositives and appositive phrases in the following sentences, along with the words they rename or identify. Are these Correct? 3. A basketball star at age 13, she was known for her speed. *ANSWER* AP=A basketball ... 
English
Hello, can you check with me to see if this answer is correct to this question. What does scrooge mean by these lines in a Christmas carol Act two scene four? Spirit this is a fearful place, in leaving it, I shall not leave its, lesson, Trust me let us go. Answers are; I am ... 
Chemistry HWK CHECK
1. A solution in which no more solid can be dissoved is referred to as ____. Answer: saturated 2.At constant pressure, heat can be referred to as (entropy, enthalpy, or free energy). Answer: enthalpy The measure of disorder or randomness of a system is(entropy, enthalpy, or ... 
Economics
Could you please check this Directions: Match each item with the correct statement. Here are the words: supply elasticity law of supply price system technology price ceiling supply inelastic supply curve shortage market supply taxes 1. principle that suppliers will normally ... 
Math (Check answer)
Please check the solution below: X, is assumed to be a random variable by placing letters of the word “YACHT” in a hat. If these letters are withdrawn then it gets replaced. A value of 1 is given when a vowel is retrieved, and a value of 2 is given when a consonant is ... 
Solvents
Question: When a TLC plate ws developed, the solvent front ran off the top of the plate. What should be done to correct the error. Me: The only reason I'm giving you this question to check is that it seems too simple. My answer would be to stop development before the solvent ... 
Safety of the young child
To assure children's safety in a child care setting,teachers must provide continuous A.elimination of all risks and hazards in the facility. B.training of teachers and staff members.C.strict rules and regulations for children. D.awareness of children's developmental skills and... 
6th grade math
Just wondering if you could check my answer to this question. Tell whether problem can be solved by using GCF or LCM. Then solve. Sean has 8inch pieces of toy train track and Ruth has 18 inch pieces of train track. How many of each piece would each child need to build tracks ... 
Math, check my answer. thanks
Consider the following students’ methods of solving the Proportion 8/5 = 20/x and determine whether the methods were correct: Richie: First I divided 20 by 8 and got 2 1/2 Then I multiplied by 5 and got 12 ½ for my answer. Martha: I think of it this way. Every time a person... 
Chemistry(Please check)
. Ksp for Fe(IO3)3 is 1014. Two solutions, one being iron(III) nitrate and the other being sodium iodate, were mixed. At the instant of mixing, [Fe3+] = 104M and [IO3] = 105M. What happens? My answer is that a precipitate forms because Qsp > Ksp. Would you agree? ... 
Chemistry(Please check)
1) Free energies of formation are a. always positive b. always negative c. never zero d. measured at 298K e. more than one response above is correct I think that free energies can be negative or postive so the answer cannot be e. I chose answer d, they are measured at 298K. ... 
ELA
t the library, the quickest way to locate varied, reliable information for your research paper is to A. check the encyclopedias. B. search the card catalog for related titles. C. ask the reference librarian. D. check the Readers' Guide. 
French continued
Could you please check these too (God Bless) Directions: Write sentences according to the model below. (Doesn't matter if you use the form of de or à) Example: l'école/le restaurant Je rentre de l'école et je vais au restaurant. 1. le lycée/le magasin Answer: Je rentre du ... 
English
1. I got out of my car to check the engine. 2. I got off my car to check the engine. (Are both the same? In #2, what is the part of speech of 'off'? Is 'off' an adverb or a preposition?) 3. I got out of my car to check the engine. 4. I got out of my car to check out the engine... 
Calculus
How would I find the Integral of 3dx/(10x^220x+20) I've been stuck on this, and would like an answer ASAP. 
calculus
i have to determine whether the series is convergent, and if, find the sum the series is from k=1 to infinity of 2/((k+1)(k+3)) I got 5/6 as my answer and didn't know if it was right... 
CALCULUS
Determine the derivative of the function: Y=1 / (Sq.root of (3x1) I know the answer is 3 / (2(Sq.root of 3x1)^3 I just need some aid on the steps. Thanks in advance. 
calculus
Specify the region over which the following function f(x) is increasing and the region where it is decreasing. f(x)=(1) / x. Give your answer in open intervals. 
Calculus
(a) State the reference angle associated with 265°. (b) Convert 265° to radians. Leave the answer in terms of pie . 
Calculus
Please help!! I keep solving this problem but I keep getting the wrong answer. Find the derivative of the function: f(x)= xsqrt(x1)/(x+2) 
calculus
Find an interval of length 0.1 in [1, 2] containing a root of the equation. (Enter your answer using interval notation.) x7 + 7x − 10 = 0 
calculus
find the bound on the real zeros of the polynomial function f(x)=x^4+x^34x6 cna you please show me how you got the answer please 
integral calculus
integral of sin(x^2) dx i actually got the ans, but aftr differentiating the answer i am not getting back the question 
PRE CALCULUS
find exact values for the number of radians for an arc of 4pi/3 on a unit circle is the answer 4pi/3??? 
PreCalculus
Find dy/dx if y= x^6[(x^29)^8]? So the answer is supposed to be 2x^5[(x^29)^7](11x^227), but I don't understand how to get it. Do you use product rule, chain rule or both? thanks 
Calculus Help Please!!!
show all of the algebraic steps in finding lim x>0 (sin2x)/(2xtanx) I know the answer is 2 but I need the steps thank you! 
calculus
Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) An=[(1)^n]/[8[(n)^(1/2)]] 
calculus
Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) An=(n^2)(e^n) 
calculus
Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) {0, 4, 0, 0, 4, 0, 0, 0, 4, ...} 
calculus
Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) (1/3,1,1/4,1/2,1/5,1/3,1/6,1/4...) 
Calculus
The radius of a sphere is increasing at a rate of 2 mm/s. How fast is the volume increasing when the diameter is 100 mm? Evaluate your answer numerically. 
Calculus
Find the intervals on which x^2/(x3)^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. 
calculus
What would the remainder be if: P (x) = x^3  3x^2 + 3x + 2 is divided by x + 1? How would i get the answer? 
Chemistry
Can someone check my answer for me... 1)Suppose a piece of lead with a mass of 14.9 g at a temperature of 92.5 degrees is dropped into an insulated container of water. The mass of water is 165 g and its temperature before adding the lead is 20.0 degrees. What is the final ... 
Calculus
Suppose that the machinery in question costs $104000 and earns profit at a continuous rate of $69000 per year. Use an interest rate of 9% per year, compounded continuously. When is the present value of the profit equal to the cost of the machinery? Round your answer to the ... 
Language Arts 6A
Can you check my answers? 1. Which of the following text aids or features is used to organize information within an informational text? A)diagram B)highlighted vocabulary C)caption D)subheading My answer is D. 11. Which of these sentences contains an error in verb usage? A)I ... 
English
Plagiarism is borrowing wrring from other people or literary theft. I said literay theft. Please check my answer tanks :) 
Health
Please check my answer thanks :) True of False A problem with lumbar plexus may cause pain in the posterior part of the thigh. I said False 
Health
please check my answer thanks True or False Fungi is a type of route that a microorganism can travel from one place to another I said True 
algebra
Check whether the ordered pair is a solution to the equation x =3/4; (1/2, 3/4). Please show me step by step how you came up with this answer because I am really confused. 
pre algebra
When twice a number is decreased by 8, the result is the number increased by 7. How would you solve it and check answer into the original problem? 
Trig Check my answer Please
Find the reference angle for 144 degrees. I'm coming up with 504 degrees, but I think I'm missing a step. 
spanish/check please
Mis hermanos y yo los ( oimons/ oyeron) ______ hablar unos minutos en la cocina. answer :oyeron 
Simplify (Another Question/problem) 3
Simplify. (27a^(6) )^(2/3) I got 1/(9a^4 )as my answer, but can someone again please check this. I will appreciate it. I am just unsure if it is correct or not. 
algebra/check my answer
Three fair coins are tossed. What is the probability that at least one is a head? (Enter the probability as a fraction.) I came up with 7/8 Thank you 
physical science
what is transferred by a force moving an object through a distance? a. force b. mass c. motion* d. energy please check my answer 
biology
1. The number 1,2 and 3 are the nucleotides of the anticodon for the mRNA codon 5' AUG 3'. Thus in order of 1, 2 and 3 the sequence of this anitocodon is...... a. UTG b. ATG c. GUA d. CAU I believe the answer is "d", Please check 
Law and Ehtics in Med
Please check my answer thanks :) Which of the following is most pertinent in a legal or courtroom context? 1. Confidentiallity 2. Etiquette 3. Pt's expectaion of privacy 4. Privileged communication I picked 4 
Assistance Dogs
Please check my answer thanks :) . Which of the following is not an important job for a puppy foster family to teach? A. Socialization B. Housetraining C. Appropriate chewing D. Play bowing I think it is D 
Vocabulary check my answer
The shirt that Jack stole was worth just three dollars, so he was only charged with a _________. a) ruffian b)misdemeanor.... Is this right??? c)extortion d)condemnation PLEASE HELP 
Science
If someone could check my answer: Dynamic lows are accentuated due to the fact that they rotate in the same direction as the Earth's surface (Cyclonic flow). This is calledCORIOLIS EFFECT....Thanks 
Cellular Anatomy
The function of smooth muscle is to provide? A. cushioning around the joints B.rapid contractions C.skeletal support D. involuntary movement Can some one check my answer it is (D) 
check my science hw please.
25. All of the following factors affect an area's biodiversity EXCEPT A. areas B.number of endangered species C. climate D. diversity of niches. I got C for my answer. 
Math (please check my answer!!)
What other information must be given in order to be able to prove the two triangles congruent by ASA? i.imgsafe(.)org/c64c59dad9.jpg 1. T=S 2. P=S 3. P=R<<< 4. PQ=QR 
Calculus II
I need to find if the summation of (n^4)/(n^10 + 1) is convergent or divergent from n=1 to infinity. I tried splitting it up into two sums, one being 1/n^6, which would be convergent because p=6>1, and then the other being n^4, but I'm not sure how to know if this is ... 
AlgebraMathmate or Reiny or Dr. Bob, please check
I have two short questions which I think I know the answercould you please check? If I write log(b)x  2log(b)y as a single logarithm it would be log(b) x/y^2, correct? If not please help and Is the function f(x) = 1/x a exponential function I think it would be because it ... 
Calculus
Could someone please check my work on the following problems? I want to be sure that I'm doing them correctly; i'm just required to find the derivatives and then simplify. g(t)= t/sint g'(t)=1*sintcost*t/(sint)^2 g'(t)=sintcost*t/(sint)^2 y=ln(e^ax) y'=1/e^ax*e^x*a and i'm ... 
math check please
Find the median of the following set of numbers 45,21,54,22,65,61 Answer 49 1/2 2. find the mean and the median of the set of grades 95,75,76,86,96,71,68,81,95,76,69,82,93,88,94 Answer mean 83 median 82 3. find the mode of the following numbers 11,10,6,11,12 Answer 11 4. Find ... 
Math Help and check
The weights of ripe watermelons grown at Mr. Smith's farm are normally distributed with a standard deviation of 2 lb. Find the mean weight of Mr. Smith's ripe watermelons if only 5% weigh less than 18 lb. (Give your answer correct to one decimal place.) Incorrect: Your answer ... 
Chemistry  Answer Check
Gaseous hydrogen and iodine are placed in a closed container at 425 degrees Celsius. The reactants react to produce the gaseous compound hydrogen iodide, which partially decomposes back into hydrogen and iodine gas as shown below. H2 (g) + I2 (g) <> 2HI (g) You are ... 
drwl / bobpursley please check
I had posted three questions at 1:48pm, 2:40pm and 2:41pm and I am having problems with them. Can you please check them for me. Thanks! Repost if you are not satisified with the responses. 
English Grammar check
Can you please check this for grammar thank you!! Thank you, for all that you have done and continue to do for me.It means the world to me, that you haven't given up on trying to help me. More importantly, thank you for always believing in me. 
Math
Marilyn got a birthday check from her grandmother. She spent half of it on a soccer ball, and then earned $20 mowing a neighbors lawn. She now has $38. How much was her birthday check? A. 38/2=c+20 B. C+38=20/2 C. 2c=3820 D. C/2+20=38 
Calculus
The concentration of a certain drug (in mg/cm3) in a patient's bloodstream t hr after injection is given by the following function. C(t) = (0.6 t)/(t^2 + 5) Evaluate the limit. (If an answer does not exist, enter DNE.) 
Practice Exam Calculus
f(x) = 6sqrt{x} 9x n the interval [1,9]. f(c)=f(9)f(1)/9(1)=? Verify that the conclusion of the Mean Value Theorem holds by computing Now find,c in (1, 9) so that f'(c) equals the answer you just found. c=? 
Calculus
Find the differential dy of the given function. y=sec^2x/(x^2+1) My answer was [tanx(x^2+1)2sec^2x]dx/(x^2+1)^2 My friend (who's a lot smarter than me) got something wayyy different, so I'm not sure if I'm doing this wrong...? 
Calculus
h(x) = x+cos(ax) is a family of functions where a is a positive constant such that 0<a<4. Which values of a make h(x) strictly decreasing? Justify your answer. I can't figure this out and help would be appreciated. Thanks in advance! 
PreCalculus
2. Write an equation in slopeintercept form of a line with the given parametric equations. x = 9t + 2 y = 2t – 2 answer choices: a)y=(2/9)x  (22/9) b)y=(22/9)x + (2/9) c) y=(9/2)x  (9/22) d) y=(2/5)x + (2/3) If you could show some work, because I'm pretty confused. Thank ... 
Calculus (Sequences)
Hello, here is a picture of the question I am trying to solve, I believe the answer to be C, but I would just like some confirmation/correction. goo. gl/gWfhVn 
Continuity Calculus Help
The given function is defined for all x > 0 except at x = 8. Find the value that should be assigned to f(8), if any, to guarantee that f will be continuous at 8. (If an answer does not exist, enter DNE.) f(x)= Sqrt( x^264/x8) 
calculus
3) The table below gives selected values for the function f(x). Use a trapezoidal estimation, with 6 trapezoids to approximate the value of int f(x) dx from 1 to 2 . Give 3 decimal places for your answer. x 1 1.1 1.2 1.5 1.7 1.9 2.0 f(x) 1 2 4 6 7 9 10 
Calculus
For an object whose velocity in ft/sec is given by v(t) = −2t^2 + 4, what is its distance travelled, in feet, on the interval t = 0 to t = 2 secs? I think the answer is 2.667 but I am not one hundred percent sure. 
Calculus
The function f(x) is defined as f(x) = 2(x+2)(x1)^2 = 2(x^3 3x + 2) on the open interval (3,3). 1. Determine the xcoordinate of the absolute minimum of f(x) in the open interval (3,3). Justify your answer. 2. Find all values of x for which f(x) is concave down. Justify ... 
Calculus
Let f(x)=−2 x^3 − 3 x^2 − 2 x − 10. Find the interval where f is concave up. I Answer: < x < Find the interval where f is concave down. Answer: < x < Find the inflection point of f. Answer: x= 
Chemistry
Hi! Thanks for checking my question out! ____ 2. Which of the following takes place during a redox reaction? (1 point) a) Electrons are gained only. b) Electrons are lost only. c) Electrons are both gained and lost. d) Electrons are neither gained nor lost. My Answer: C Could ... 
~MATH~
***Check Answers Plz*** 1)suppose the total momentum of two masses before a collision is 100 kg m/s.what is the total momentum of the two masses after they collide? a~0 kg m/s b~50 kg m/s c~100 kg m/s****(My answer) d~200 kg m/s 2)What is the momentum of a 20.0 kg scooter ... 
Calculus
For the parametric curve defined x=2t^312t^230t+9 and y=t^24t+6 ..find dy/dx and then where is the tangent to the curve vertical (give the cartesian coordiantes of the points. and find the tang. to the curve horizontal dx/dt= 6t^224t30 dy/dt= 2t4 dy/dx= (t2)/(3t^212t... 
Algebra
An inspector of weights and measures uses a special set of weights to check the accuracy of scales. Various weights are placed on a scale to check the accuracy of any amount from 1 oz. to 15 oz. What is the fewest number of weights the inspector needs? What weights are needed ... 
PreCalculus  Reiny
Reiny you helped me with this logarithm yesterday: How did you write it out as log2 ( √A / B^3 ) Laws of logarithms combine, write as a single logarithm Need help on this question please, Im stuck, don't know where to go abouts from here: I did it on paint and uploaded ... 
French
I am working on my French homework (direct/indirect) and would like to check my answers and make sure I am on the right track. I am having difficulty with the following: Options: Me/m’, te/t’, nous, vous, le, la, les, lui, leur, y, en A. Je vais au café prendre des ... 
history
What vital right did the Spanish allow the Western farmers? Answer: It was that Spain allowed Americans to travel on the lower Mississippi to New Orleans and to ship their goods. "cORRECT right??" mmhmm Can you help me out with this one???? Did you ever find my work yet? I ... 
Mathplease check
1. Write a rule for the sequence. 8, 1, 10, 19... A. Start with 8 and add 9 repeatedly B. star with 9 and add 8 repeatedly C. start with 8 and add 9 repeatedly D. start with 8 and subtract 9 repeatedly 3. What is the 7th term in the following sequence? 48, 40, 32, 24... 
Algebra HELP PLEASE
A cylinder has a radius of 4x + 2 and a height of 5x — 4. Which polynomial in standard form best describes the total volume of the cylinder? A.80pix^3+144pix^2+84pix+16pi B.20pix^2+26pix+8pi **** C.80pix^3+144pix^2+84pix16pi D.400pix^4+1040pix^3+996ix^3+416pix+64pi My ... 
biology can someone check
Decide if each of the following statements is true.If it is not rewrite the parentheses part to make it true. 1) Scientific methods include observation,(forming a hypothesis, and experiment). ans: false ;answer questions; solve problems 2)A statement that can be tested and ... 
Calculus
According to the US Census, the world population P, in billions, is approximately P=6.342e^(0.011t); where t is in years since January 1, 2004. At what rate was the world's population increasing on January 1, 2005? Give your answer in millions per year. Is the answer 6412 ... 
Calculus
Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ 9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . b.) A global minimum for this function occurs at . c.) A ... 
Calculus
Consider the function below. f(x) = [1(4/x)]^x (a) Use a graph to estimate the value of the limit of f(x) as x approaches infinity. (Round the answer to two decimal places.) (b) Use a table of values of f(x) to estimate the limit. (Round the answer to four decimal places.)