Calculus (Answer Check)
88,703 results, page 21

calculus
need some help im doin antiderivatives it has (2x^2)^4xdx i understand how to do it for the most part but i come up with 1/5(2x^2)^5+c the book has a answer of 1/10(2x^2)^5+c how what am i doing wrong 
Calculus
How do I answer these questions. Please show work. The answers are through the link as a png image. THanks! h t t p : //goo.gl/NNf9A 
Applied Calculus
Use differentials to approximate the quantity (give answer to 4 decimal places) 4th root of 256.6. 
Calculus
Use the Evaluation Theorem to find the exact value of the integral ç from 1/2 to 0 (a/ã(1−x^2)dx. The answer should involve the parameter a. 
PreCalculus/Trigonometry
Help please If, f(x)= 3/x+2 √x3, complete the following statement. Round your answer to the nearest hundredths place. F(7)= ? 
Calculus
Give a Righthand sum approximation of integral 1 to 4 of x^2 with n=4? I have done this problem alot and my teacher says the answer is 30 but I cant get it. HELP 
precalculus 11
The infinite series 1+3x +9x^2 +27x^3+.. has a sum of 4.The value of x is? so if 1/1r I substitute 1/13x =4 so x=1/4 if someone could confirm that my answer is correct? thanks so much 
Calculus
Find the volume of the solid obtained by rotating the region under the graph of f(x)= 9x^2 for 0<= x<=3 about the vertical axis x= 2. My answer: 81 pi/2 
calculus
Find the solution of the differential equation that satisfies the given initial condition. dp/dt=2 sqrt(pt), P(1)=5 my answer: P=(2/3t^(3/2)+(15sqrt(5)10)/15)^2 how is it wrong? 
Calculus
Design an Advanced U substitution problem whose answer must be exactly 6 and can be solved without using calculator? 
Calculus
The end behavior of f(x)=(2+x^2)/(x^236) most closely matches which of the following: y=1 y=18 y=2 y=0 I still don't get this based on steve's answer will someone please help? 
Calculus AB (AP)
Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning of taking two derivatives. Can someone please explain the following: 1. g(x)=e^(f(x)) g'(x)=e^(f(x))f'(x) 2. f(x)=Integral from 0 to 3x of the square ... 
math
If the answer is 12/3m what is the question> How can you solve equations like these? 9r + 7 = 4r  8 Need to get the r on one side. 1st subtract 4r from the right side of the = sign. What you do to one side do to the other. 9r4r+7=4r4r8. 5r+7=8 2nd subtract 7 from ... 
READ THIS!
Please answer my question that I posted at 6:10 quickly because I have to in a little while!!! Your answer is posted. However, you're still going to have to do the math to find the equivalencies. If you'd like to post your answers, we'll be glad to check them. We do not do ... 
Health of young children
Which of the following statements regarding exclusion policies is true? A.They prevent illness and infection in centers B.They're necessary only when there's threat of serious illness C.They protect care providers against charges of negligence D. They serve as guidlines for ... 
Math
In one hour, Ed used 2/5 of the time to complete his homework and 1/4 of the time to check his email. How much time did he spend completing his homework and checking email? Write your answer as a fraction. (Bonus: write the answer in minutes.) 
Math
In one school, 5/6 of the sixth graders take a foreign language. Of these students 2/5 take French. What fraction of the sixth graders take French. Answer: 5/6 x 2/5=25/30 + 12/30=37/30=1 7/30 Can you please double check my answer to see if I got it right. 
Math
The average of X numbers is 15. If the sum of the X numbers is 90, what is the value of X? A)5, B)6, C)8, D)15 or E)75 What is the correct answer and how do you set up the equation? The answer is b)6 because if there are 15 average numbers and the sum is 90 you just multiply 6... 
sig figs
each of the following were suppose to be rounded to two sig figs. mark then correct or incorrect. if incorrect state the correct answer 1) 1.249 103 to 1.3 103 i know its wrong but i don't know the correct answer 2)7.999 102 to 80 its wrong and i thought it was 800. but they ... 
CalculusMath
The ordering and transportation cost C for components used in a manufacturing process is approximated by the function below, where C is measured in thousands of dollars and x is the order size in hundreds. C(x) = 12((1/x)+((x)/(x+3))) (a) Verify that C(2) = C(15). C(2) = 54/5 ... 
Statistics/check answer
If a population has a standard deviation σ of 18.2 units, what is the standard error of the mean if samples of size 25 are selected? Show all work. standard error of the mean = 0/sqrt(n) = 18.2/sqrt(25) = 18.2/5 =3.64 Answer 3.64 
geometryPLEASE CHECK AND HELP!!
1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that on the line would the answer be ba and bc? what would the answer to d be? 
chem. check!
Can u please check this and help me on 4 questions I did not do. Thanks 1. 
check
How do I right a check for 1,400 dollars? 
Math
Write a list of steps that are needed to find the measure of angle B. A measures 72 degrees and C measures 113. What does B measure? My Equation Answer: b=180(a+c) 72+113=185 180185= 5 My Word Answer: When you need to find the measure of B the answer is 5. First, you need ... 
trigonometry
Hello! I was wondering if someone could check my answer and tell me if I'm on the right track: "Find a model for simple harmonic motion satisfying the specified conditions" Displacement(t=0), 2ft Amplitude, 2ft Period, 10 sec This is what I got: y=2cos pi/5 t I hope you can ... 
Calculus
y = f(x) = x^2  3 x (a) Find the average rate of change of y with respect to x in the following intervals. from x = 2 to x = 3 Incorrect: Your answer is incorrect. from x = 2 to x = 2.5 Incorrect: Your answer is incorrect. from x = 2 to x = 2.1 Incorrect: Your answer is ... 
8th Grade Math
Can you please check my answer? An American football field is a rectangle 120 yards long (including both end zones) and 53 1/3 yards wide. What is the area of an American football field? my answer: 6360 square yards 
precalculuscheck over work
1). change to exponential form: log2^256=8; 2^8=256 log0.0001=4; 10^4=0.0001 2). change to logarithmic form: 5^3=125; log5^125=3 4^3=1/64; log4^1/64=3 3). solve the equation: 3^(x2)=27^(x+1) 3^(x2)=(3^3)^(x+1) 3^(x2)=3^(3x+3) x2=3x+3 5=2x 5/2=x 2^(x^(2)+1)=4^(x+2) 2... 
Math
Can you please check my answers, thank you #2. 5/y+4 + 11/y^2=y12 = 7/y3 Answer 2 #4 The length of a rectangle is 2 cm more than twice its width. If the perimeter of the rectangle is 40 cm, find the length of the rectangle. A. 6 cm B. 9 cm C. 11 cm D. 14 cm Answer B = 9cm #... 
Check+Business
Indicate whether the market price of a product will most likely go up or down in the following situations and why: a) There is a drought in the Midwest (bushel of wheat) My answer: Go up, becuase the supply is limited b)Strawberries are in season with a bumber crop My answer: ... 
Math  Please Check My Answer  Probably Last One!
Please help me with the following: The volume of a cylinder is found using the formula V=πr^2h,where r is the radius of the base and h is the height. The volume of a rectangular prism of the same width (2r) and height h, as the cylinder, is found by multiplying the area ... 
Physics
A wave traveling in the +x direction has an amplitude of 0.50 m, a speed of 5.7 m/s, and a frequency of 18 Hz. Write the equation of the wave in the form given by either Equation 16.3 or 16.4. (Answer in terms of t and x. Assume standard units.) please check my answer: y= A ... 
Physical Science
Hello! Thanks for checking my question out! ____ 5. If the volume of a cylinder is reduced from 8.0 liters to 4.0 liters, the pressure of the gas in the cylinder will change from 70 kilopascals to (1 point) a) 35 kilopascals. b) 105 kilopascals. c) 140 kilopascals. d) 560 ... 
Maths ..Equations
Hi I have to rearrnge the following to make y the subject.. x = 3  2y / 6 I get the first part do x 3,  2, and / 6. Undo x 6, + 2, and / 3 then multiply by 6 so, 6x = 3  2y add 2 to both sides, 6x + 2 = 3 the divide both sides by 3 6x + 2 = y  3 so y = 6x  2... 
Check my answers? (Chemistry)
I only get one chance for each of these questions so I was wondering if someone could check my answers, thanks! 1. Consider the following reaction at equilibrium. 2 BrNO(g) > 2 NO(g) + Br2(g) Predict the effect of the following changes to the reaction mixture. (a) adding... 
Law and Ethics in Med
please check my answer thanks :) Dr Bob is sued for malpractice. when called to give testimony at trial. he will .... 1. be barred from revealing medical information about the patient. 2. be allowed to testify about the pt's care 3. allowed to testify, but not about the pt's ... 
geometryPLEASE CHECK AND HELP DUE TODAY
1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that on the line would the answer be ba and bc? what would the answer to d be? 
calculus
hello here, Please can i get direction on website to practice calculus (both differential & integral) objectives based online. thanks. 
Calculus
How do I determine the area of a region bounded by a function and the xaxis if given y=cosx and interval is [0,ð/2]. This has to do with the Fundamental Theorem of Calculus. Thanks in advance! 
Calculus.......plz help! =)
Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes, and points of inflection for y = x(x+1)^3 
Physics
Can someone check my answers for the following questions. Thanks you. 1)A hockey puck's average velocity is 22 m/s. What is its displacement after 6.0s? Answer: 132 m 2)It is 0.30 seconds after seeing a puff of smoke rise from the starter's pistol; the sound of firing the ... 
PreCalculus
translate this polar equation into a rectangular form: rsin(2theta)=sin(theta) My answer: r2sin(theta)cos(theta)=sin(theta) 2rcos(theta)=1 2x=1 x=1/2 This is the only answer I can get and someone told me it's wrong. Would someone please help me with this 
Chemistry
Please check my answers for the following questions. THANK YOU. 1) The empirical formula of a compound that is 25.9% nitrogen and 74.1% oxygen is.... ANSWER: N2O 2) empirical formula of a compound that consists of 4.80 grams of carbon, 1.20 grams of hydrogen, and 2.80 grams of... 
Algebra 2
Can you double check my answer The lengths of the sides of a rectangular window have the ratio 1.6 to 1. The area of the window is 2,560 square inches. What are the dimensions of the window? (1 point) 50.6 inches by 50.6 inches 40 inches by 64 inches 40 inches by 80 inches <... 
PreCalculus
A photogrpaher points a camera at a windows in a nearby building forming an angle of 42 degrees with the camera platform. If the camera is 52 meters from the building , how high above the platform is the window, to the nearest hundreth of a meter. The answer is 46.82m, i would... 
Nutrition of the young child
Why shouldn't unmodified cow's milk be given to an infant under one year old? A.Infants are able to digest only breast milk. B.It contains too much bacteria for young babaies to handle. C.it can cause an upset stomach. D.Most infants are allergic to it. I chose B as my answer ... 
Science
Please check my answers. 1) Fossils are the ______. a. oldest layers of rock in a region b. remains or traces of prehistoric life. (my answer) c. objects that people of long ago left behind as artifacts. 2) In what type of rocks are most fossils found? a. sedimentary rocks (my... 
Calculus
6.] Replace the integral in exercise 5 (int. (1/ 1 – t) dt a = 0, b = 1/2with ?1/(1+t) dt with a = 0, b = 1, and repeat the four steps. a. integrate using a graphing utility b. integrate exactly c. integrate by replacing the integrand with a Taylor series and integrate term ... 
Calculus (Area Between Curves)
Find the area of the region IN THE FIRST QUADRANT (upper right quadrant) bounded by the curves y=sin(x)cos(x)^2, y=2xcos(x^2) and y=44x. You get: a.)1.8467 b.) 0.16165 c.) 0.36974 d.) 1.7281 e.) 0.37859 Based on my calculations, I would say that the answer is e.) 0.37859. I ... 
Science 7R  HW Check (PLZ read!)
Compare Lamarck's explantion of evolution with Darwin's theory. My Answer  After scientist collected large amounts of data on the inheritance of characteristics, Lamarck's explanation was rejected. Darwin's developed the theory of evolution still accepted today. Is my answer ... 
English
16. Each of the following contains examples of alliteration except "Then somthing caught: a helping grain of sand." ***my answer "The car broke free and scuttled smartly right over the road." "A post shot up and crackeda sharp clang." "I sat back in my seatbelt and saw ... 
English
PLease check my answer thanks :) One purpose of a summary is to include your own opinion on the topic or to save the reader time I picked#1 
Law and Ethics in Med
PLease check my answer thanks :) Roe V Wade is based on what the fetus's right to be born after the dirst trimester 
Law and Ethics
please check my answer thanks :) If a child is at risk for abuse or neglect the state will use Res ipsa loquitor. I said yes 
maths  pls check answer
. A single die is rolled one time. Find the probability of rolling an odd number or a 6. 3/6 + 1/6 = 4/6 = 2/3 = .667 
math
I need to check my answer... please help... the prime factorization in powers of primes of the number: 16380. 5460 to the power of three is this correct 
chemistry
How many grams of hydrogen can be produced by the electrolysis of water with a current of 0.442 A running for 2.00 min? I got 0.000549g. can someone check my answer 
chem can u check answer please
what is the hydrogen ion concentration of an aqueous solution with a pOH of 9.262? I got 5.47X 10 ^10 is this correct? Thanks Andy 
MATH(please check only)
Number of Cans of Corn Cost 3 $1.95 5 $ 3.25 6 $3.90 9 $5.85 Write an equation to represent the data how do i do that I think the answer is 0.65n = c 
SS7R  HW Qs. Check (Q5)
Whena worker freely chooses his employer and works for wages is it called ____________ answer  free labor am i correct???? 
math
Solve the equation check for extraneous solutions 6/64x/=8x+4 I used/ / for the brackets posssible answers x=1 x=5/2 or x=2 x=5/2 x=5/2 or x=1 Not looking for just the answer, would like to know how to get it. 
language arts (check answer)
Which of the following words most likly comes for africa? A.boutique B.safari C.violin D.allegro i pick B. 
math (check please)
find the volume of a square pyramid with a base length of 9cm and a height of 4cm. ANSWER: 108 cm^3 (is it right?) 
science (check!)
when fossil fuels are burned they produce _____, the main greenhouse responsible for global warming trends. MY ANSWER: emission? 
Math check see if i;m coorrect
In division, a problem includes a divisor, a dividend, and a(n) ______. A. product B. sum C. expression D. quotient My answer is b 
Science
which of the following helps ensure a groups access to resources it needs for survival? My answer is D. Territorial Behavior. Please check if this is right?.. 
Spanish
Countries of the Caribbean Basin generally share the same ______. A) traditions B) geography C) climate*** D) culture Please check my answer, thanks. 
CHECK MY ALGEBRA 2
Write an equation that would have a hole at x = 4 and a vertical asympote at x = 2. My answer was f(x)= (x4)/(x+2) If it is not correct can someone please help me solve it and explain it to me? Thanks! 
Mathematics
Choose the Compound Inequality that represents this phrase: All real numbers that are less than 3, or greater than or equal to 5 (I need to check my answer) A) x < 3 or x >_ 5 B) x < 5 or x >_ 3 C) x <_ 3 or x > 5*** D) X <_ 3 or x <_ 5 
Science  6th grade : CHECK MY ANSWER
Which of the following sets of terms is associated with air pollution caused by burning fossil fuels 1.acid rain, ozone hole, skin cancer 2.methane, smog, carbon dioxide 3.sulfur dioxide, smog, chlorofluorocarbons 4.carbon dioxide, smog, acid rain MY ANSWER: Is the answer: 4.... 
Calculus
Evaluate integral, don't use calculator. I'll use the S as the sign for integral S 4 sin (theta)d(theta) from pi/2 to pi I know the answer is 4 because I enter it in on my calculator, but don't know the steps to get to the answer. Please help. 
Precalculus
1. The graph of the equation y = x2 – 3 is symmetric with respect to which of the following? The answer is the yaxis . why? 2.The graph of an odd function is symmetric with respect to which of the following? the origin is the answer, why ? 
Calculus
Let f(x)=3x^42x^2+3 a) find f'(x) Answer: f'(x)=12x^34x b) find the slope of the line tangent to the graph of f at x=3. Answer:312 So I got those firs two right but what I need help with is part C which is c) find an equation of the line tangent to the graph of f at x=3 
Health (Ms. Sue Check Please)
1.Kori's doctor says her muscular strength and endurance are excellent, but he worries about Kori's cardiovascular health. Kori enjoys weightlifting, softball, basketball, and bowling. Increasing the frequency of which activity will best improve Kori's cardiovascular endurance... 
calculus
Suppose f(x) is the function 2x^3+ 12x^2+ 21x + 3. Find the smallest value of f at which the tangent to the curve is 3. I did: f'(x)+ 6x^2+ 24x + 21= 3 = 6(x+3)(x+1), x= 3, 1 the correct answer is supposed to be 8 
Calculus
Find the surface area formed by revolving the graph of f(x)=81x^2 on the interval [0,9] about the yaxis. (express the answer in terms of pie.) 
calculus
Find the smallest positive value of x which satisfies 1.400cos(1.000x) Give answer in four decimal places for accuracy. 
Calculus
Solve the exponential equation for t. Round your answer to three decimal places if necessary. e^(0.08t)=4 Please show work 
calculus
Find the arc length of the graph of the function over the indicated interval. (Round your answer to three decimal places.) y = (2/3)x^(3/2) +7 ;[0,6] 
Calculus
Which of the following is a point at which the tangent to y=(x2)^2(x+3) is horizontal? a) (2,16) b) (1, 18) c) (1,4) d) (2,0) I found the derivative of y=(x2)^2(x+3) which is 3x^22x8 if I solved for 0, it wouldn't give me the answer that are listed above. What did I do ... 
calculus test corrections. 1 question
Describe the linear programming situation for this system of inequalities. x < 1 y > 0 3x + y < 5 the answer is unbounded. please tell me why 
Precalculus
Find the minimum value of f(x, y) = y – x + 1 for the polygonal convex set determined by this system of inequalities. x > 0 y > 0 2x + y< 4 the answer is 1. please tell me why 
calculus
usethe intermediate theorem to show that the polynomial function has a zero in the given interval f(x)=18x^48x^2+9x1;[0,3) can you please me how you got the answer 
Calculus
Find the derivatives of the function k(x)=sqrt(sin(2x))^3 I think I have the answer and was wondering if i had it correct k'(x)=2sin(x)^3+8sin(x) 
Calculus
Let f be the function given by f(x)= 2x/(sqrt(x^2 +x +1)) c. Write an equation for each horizontal asymptote of the graph of f. d. Find the range of f. Use f'(x) to justify your answer. 
AP Calculus
In the answer space below, provide the larger of the two positive integers that add up to 60 and have the largest possible product. 
Calculus
Calculate the area of the region bounded by the graphs of the given equations y=x^25x+4 and y=(x1)^2 The answer is supposed to be 9/8, but I'm getting 111/8. Idk what I'm doing wrong 
Calculus
I'm trying to find the integral from 1 to 0 of 1/x^(1/3). Calculators show the answer to be 3/2, but I keep ending up with 0  (3(1)^(2/3))/2, which seems to be an irrational number. What am I missing here? 
French
Could you check these thanks. We are working on les actions réciproques. 1. Pierre parle à Marie. Marie parle à Pierre. Answer: Ils se parlent. 2. Pierre aime Marie. Marie aime Pierre. Answer: Ils se aiment. 3. Je t'aime. Tu m'aimes. Answer: Nous nous aimons. 4. Je te vois... 
math answer check
Three coins are tossed, and the number of heads observed is recorded. (Give your answers as fractions.) (a) Find the probability for 0 heads. Incorrect: Your answer is incorrect. . Your answer cannot be understood or graded. More Information Redone 0/3 was my answer (b) Find ... 
Calculus
Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or second derivative rule ... 
Calculus
Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or second derivative rule ... 
Math  check my answers :)
1. Find the amplitude, if it exists, and the period of y=tan 1/4È Answer: No limits in amplitude, y=tanÈ/4 period is 4pi 2.Solve x = Arctan(sqrt3) Work: Pythagorean theorem: sqrt(1^2+3)= sqrt4=2 in length. Triangle is 1, sqrt 3,2 Answer: 60° 3. In triangleABC, A = 35°, a... 
Calculus
If m ≤ f(x) ≤ M for a ≤ x ≤ b, where m is the absolute minimum and M is the absolute maximum of f on the interval [a, b], then b m(b − a) ≤ f(x) dx ≤ M(b − a). a Use this property to estimate the value of the integral. 9 4Sqrt(x)dx 0 Correct: Your answer is ... 
spanish/check please
Completa la oracion usando las palabras este,ese,aquella oaquellos.) (Hint:Complete the sentence using este, ese,aquella,o aquellos) 1. Mira el caballo que esta delante de mi.Mira( ....) caballo. answer:( ese) 2 ¿Ves la llama que está lejos de nosotros? ¿ Ves(.....) answer... 
spanish/check please
Completa la oracion usando las palabras este,ese,aquella oaquellos.) (Hint:Complete the sentence using este, ese,aquella,o aquellos) 1. Mira el caballo que esta delante de mi.Mira( ....) caballo. answer:( ese) 2 ¿Ves la llama que está lejos de nosotros? ¿ Ves(.....) answer... 
physics
A 10.0kg cylinder rolls without slipping on a rough surface. At the instant its center of amss has a speed of 10m/s, determine (a) the translational kinetic of its center of mass (b) the rotational kinetic energy about its center of mass and (c) its total kinetic energy. can ... 
calculus
With x people on board, a South African airline makes a profit of (1104 − 3 x) rands per person for a specific flight. A. How many people would the airline prefer to have on board? Answer: x= B. What is the maximum number of passengers that can board such that the ... 
Calculus Please Help
If 1100 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. I'm supposed to type the answer in cubic centimeters... my answer was 2500 cm^3 but it's wrong... I have also tryed with others...