Calculus (Answer Check)
88,703 results, page 36

PreCalculus
State the domain and range of the relation y = 2x + 3 My answer: y= 2x+3 y= 2(1)+3=5 domain: 1 range: 5 This is how my book showed me how to do it. I just wanted to make sure I did it right. If not could you please give me an example? 
calculus
A kite with a string 80 feet long makes an angle of elevation of 40 degrees with the ground, assuming the string is straight how high is the kite? round your answer to the nearest foot 
Calculus
At 2:00pm a car's speedometer reads 60mph, and at 2:10pm it reads 65mph. Use the Mean Value Theorem to find an acceleration the car must achieve. Answer( in mi/h2): 
Calculus
What is the average value of f(x) on [0,4] if the area between the graph of f (x) and the xaxis is equal to 12? I used the average value formula and got 12. But the answer key says 3. My work: M= 1/4 [12x] interval: [0,4] 48/4=12 
PreCalculus
The minute hand of a clock is 3 inches long. How far does the tip of the minute hand move in 5 minutes? If necessary, round the answer to two decimal places. 
Calculus
f'(x)=sqrt(x)*sin(x) The first derivative of the function f is given above. If f(0)=0, at which value of x does the function f attain it's minimum value on the closed interval [0,10]? I know the answer is 6.28, but I need steps as to why. Please and thank you. 
particular tense was chosen
Why a particular tense was chosen for each of the following statements. Select the best answer. A. Jack has known Mike for about a year. 1. Use the present perfect when the exact time of a past repeated action isn't important 2. Use the past perfect to show the sequence of two... 
Variation
Please check my work, the answer I am suppose to get is 17.5, but instead I got 2.5. Solve the problem. 66. y varies jointly as a and b inversely as the square root of c, y=24 when a=6,b=4, and c=49. Find y when a=2, b=5, and c=16. I got: y=kab/ sqrt of c, y=2*5/ sqrt of 16, ... 
Check out my answer for this science question plez
The chemicals make rain acidic how does it happen? Is it this it? The chemicals from the black smoke gets mixed up in the water cycle and creates acid rain. 
math
can someone check my answers approximately 4 out of 10 students at sonia's college lives on campaus. the college has 3,000 students . how many live on campus? 1,200 multiply (4)(3/2)= 6 solve for the unknown 2/3=1.8 10 r answer 12 
medical info mangement
please check my answer thanks True or False If John Dale is responsible for accounting services for Weston Hospital he's the hospital's chief fisnical officer. I picked True 
PhysicsPlease help with formula
If I have an electric field around a charged object that is 2.95 x 10^6 N/C at a distance of 0.400m, how would I find the charge on the object? If you could just direct me with a formulathen I'll do it and check back with my answerThank you for you help 
ELA (CHECK)
Jose Envisioned a center with music classes. What does envisioned mean? A. watched a show about B. Saw in his mind C. Will see in his mind D. Became part of a vision The answer is C is it correct 
chem
do this using the appropriate number of sig figs 320.44 − (3104.1/2.6) i got 880 as my answer and it said to check my sig figs. I thought it was all the numbers up to the ones place 
Math Check
Hi! I posted this question yesterday and it was answered but I forgot to add something else to the directions. Directions: Write the system of equations sequentially so that it will correspond to the final matrix. Matrix: [10 2  48] [5 6/4 9] My answer: 10x+2y=48 5x+6/... 
math
A construction expected a new project from start to finish to take 12 weeks. The crew will work 7 days a week. In how many days will the project be complete. Explain how you could check your answer to be sure it's correct. 
Georgia State History
Officials whose jobs are not provided for in the constitution but are required by law are known as__. A. constitutional officers B. secretaries of state C. deputies ** D statutory officials please check my answer :) 
physics  please check my answer?
A 7kg mass on a 12 N/m spring oscillates with an amplitude of 23cm. What is the frequency of its oscillation in Hz? Find the period  2pi * sqrt(m/k) = 4.799 frequency = 1 / period = 0.208 Is that right? 
Calculus
I am reposting this question because i wrote the incorrect function last time. An oil tank is being drained for cleaning. After t minutes there are v litres of oil left in the tank, where v(t)=35(25t)^2, 0<=t<=25 a) determine the average rate of change of volume during... 
calculus
Could someone check my reasoning? thanx Find the derivative of the function. sin(sin[sinx]) I need to use the chain rule to solve. So I take the derivative sin(sin[sinx) first. Then multiply that by the inside which is the derivative of sin[sinx]. And multiply that by ... 
Math, please check answer
Find the slope of the line through the given points. ( 8, 2) and ( 8, 1) Since 88 is 0 would the slope be 0 or would there be no slope? 
chemistry(check my answer)
Which equation describes the relationship between the rates at which Cl2 and F2 are consumed in the following reaction? a)d(Cl2)/dt = d(F2)/dt b)d(Cl2)/dt = 2[d(F2)/dt] c)3[d(Cl2)/dt] = d(F2)/dt d)2[d(Cl2)/dt] = d(F2)/dt e)d(Cl2)/dt = 3[d(F2)/dt] is it e 
Physical Education  Check my answer please
Excess body fat may cause... Answer choices: 1. diabetes, lack of stored energy, stroke, and heart disease. 2. lack of organ protection, osteoarthritis, and hyper tension. 3. sleep apnea, lack of organ protection, and liver disease. 4. stroke, infertility, sleep apnea, and ... 
Algebra2
can somenone please check my answer and if i'm doing it right.... The sum of a number and 17 more than twice the same number is 101. N+17(2)=101 N=67? N + (2N +17)= 101 3N = 84 Take it from there THANK YOU! =) 
math
solve the simultaneous equations to find the coordinates of the point of intersection for the pair of lines of the simultaneous equations. Then check the answer by graphing the equations 3xy=4 2xy=0 
algebra
Find the value of y for a given value of x, if x varies directly with x. If y=39 when x=117 what is y when x=132 my answer y=k*x 39=k*117 39/117=k k=0.3 y=k*x y=0.3*1.32 y=3.96 can someone please check my work 
math plz help!!!!!!!
which ratios form a proportion? A) 4/5 , 20/25 B) 8/12 , 18/24 C) 1/3 , 7/24 D) 2/5 , 6/16 which ratio forms a proportion with 9/15? A)3/6 B)2/3 C)12/30 D)6/10##### which proportion has cross products of 5 x 24 and 8 x 15? A)5/8=15/24 B)5/24=8/15 C)8/24=15/5#### D)15/8=5/24 ... 
math check answers
You invest $75.00 the first month and $100.00 the second month at 3.75% APR. How much interest do you get at the end of the second month? $0.23 $3.36 $3.59 my answer $3.13 
math check answers
you invest $75.00 the first month and $100.00 the second month at 3.75% APR. How much interest do you get at the end of the second month? $0.23 $3.36 $3.59 my answer $3.13 
chemistry
Predict the precipitate that forms: HCl + AgNO3 > ??? i don't know what the answer is but i think it is Cing04 AgCl. You need to learn the solubility rules. If you don't have a web site I can give you one. hey watz up can you help me with a question please? If you have a ... 
Calculus
Point A=(1,3,4) and point B=(2,2,0). Determine AB. a) (3,1,4) b) (3,1,4) c) (1,5,4) d) (1,5,4) I chose answer C. 2. A goes from (2,1) to (4,1) Determine the components of A. a) (6,0) b) (2,2) c) (2,2) d) (0,6) 
Literature
Can someone check my answer. Thank You "A Very Old Man With Enormous Wings" How does the priest respond to the man with wings? What do you think his response symbolizes? Answer: The priest response to the man with wings is of suspension. He feels that he could be an impostor ... 
English
Check out this site. http://www.cultureandrecreation.gov.au/articles/poetry/ Dear all, I need a poem that will help me answer the question "Is Australia seen as a Follower or a Leader?" I am yet to find 1 useful poem on that site... Maybe you should write your own poem. I have... 
DanH I NEED ENGLISH HELP
Almost_________ work would be better than___________. anyone's hers anyone's her's anyones hers anyones' hers' Please check my previous answer. 
Math
Answer check please: Consider the circle (x3)^2 + (y+1)^2 = 169. The point (15,4) is on the circle. Find an equation for the line that is tangent to the circle at this point. I got y= 5/12x9/4. 
chemistry check
Calculate the pH of:0.01M HCl pH=log[H*]. ..=log[0.01]. ..=2.is the pH of HCl,I enter log on my calculator Igot 2 as my answer,Am I using the right step of formular? 
Science  Please Check my Answer 2
My problem: One runner in a relay race has a 1.50 s lead and is running at a constant speed of 3.25 m/s. The runner has 30.0 m to run before reaching the end of the track. A second runner moves in the same direction as the leader. What constant speed must the second runner ... 
Math check
what is the measure of an angle that is supplementary to the following angle. An Acute angle of 57º 57º+90º= Answer 147º 
mathstatistics
A manufacturer claims that the life span of its tires is 50,000 miles. You work for a consumer protection agency and you are testing this manufacturer's tires. Assume the life spans of the tires are normally distributed. You select 100 tires at random and test them. THe mean ... 
Calculus
I know I posted this problem earlier but I don't think it will be seen anymore since it's almost at the end of the page: Find the total mass of the triangular region with coordinates (1,0),(0,4),and (1,0). All lengths are in centimeters, and the density of the region is (x)=5... 
English
Posted by rfvv on Sunday, April 14, 2013 at 3:50pm. 1. He is riding a roller board. 2. He is in the air on the roller board with his arms spread in the picture. 3. Talk with your partner and check the Yes box if your partner likies the activity. If your partner doesn't like ... 
Differential Calculus
Given that p=(2q^25)^2. when q=3, it is increased by 0.7%. find the appropriate percentage in p. solution dp = 2(2q^25) (2dq) dp = (4x(185)(0.7%) dp = 4(13)(0.7%) am lost from here is dp=52x0.7/100= 0.364% Responses Differential Calculus  bobpursley, Friday, August 14, ... 
law
please check my answer thanks :) which is true of quashing 1.the pt has signed an authorization for relase 2. medical records have been subpoenaed 3. a malpractice suit has benn filed 3. a breach nof confidentiality has occurred. i said 2 none of the rally make sense to me 
U.S. History
please check this 1. The Great Awakening is best described as a. the conversion of thousands of Native Americans to Chrisitanity b. the shift of many New Englanders to the Quaker faith c. a total rejection of Puritian ideas d. a series of religious revivals in the British ... 
history
Describe the physical surroundings of Catal Huyuk. Check my answer The roofs were made of woven reeds and mud and were connected to one another like a honeycomb . Each dwelling contained an open hearth an oven in the wall and clearly defined sleeping area. 
French
Can you check this thanks. Un Voyage Directions: Faites une question en utilisant l'inversion. 1. Robert a fait un voyage à Avignon l'année dernière. (que) Answer: Estce que un voyage Robert a fait? 2. Il est allé à l'aéroport avec ses copains. (où) Answer: Où estce ... 
Calculus I
Section The fundamental Theorem of Calculus: Use Part I of the fundamental Theorem to compute each integral exactly. 4  4 / 1 + x^2 dx 0 
Bio Bio Please check answer
Because codons are triplicates, there are ______ possible nucleotides combinations that could make a codon; each giving rise to one specific amino acid. Yet, there are only 20 amino acids used to produce proteins. Thsus, the gentic code is said to be _______. I. 16, unambigous... 
Calculus
An important problem in mathematics is that of root finding: that is, given a function f (x), finding any roots of f in an interval. Exact methods exist for many functions: • In the case of a linear function f (x) = ax + b, this is easy. – If a ≠ 0, then x = −b... 
Math: Calculus
Answer the following questions for the function f(x) = \frac{ x^3 }{ x^2  36 } defined on the interval [ 20, 16 ]. A. The function f(x) has vertical asympototes at____ and___ B. f(x) is concave up on the region___ to and____ to___ C. The inflection point for this function is... 
calculus
Find dy/dx for x2 + y2 = 2xy. 2. If 5x2 + y4 = 9 then evaluate d^2y/dx^2 when x = 2 and y = 1. Round your answer to two decimal places. Use the hyphen symbol, , for negative values. 3. find dy/dx if f(x)=(x+1)^2x 4. Find the slope of the graph of the relation x2y + 4y = 8 at... 
Calculus
Find the critical numbers of the function. (Use n to denote any arbitrary integer values.) f(θ) = 12 cos θ + 6 sin2θ My answer was pi/2 and 3pi/2, but those were wrong. I don't understand the 'n' part, either. 
Calculus
Hello all, I would like some confirmation on a limits question. The limit is as h > 0, [sqrt [735(x+h)]  sqrt (735x)]/h I multiplied by the conjugate of the numerator and reduced everything down to this final answer: [(5)sqrt(735x)]/2 Is this correct? 
Algebra
An oil spill from a tanker in pristine Prince Williams Sound in Alaska begins in a circular shape only 2 ft across. what happens to the area if the diameter is doubling each hour. How large will the spill be in 24 h? diameter= 2^(t+1) t is time in hours. Area= PI*radius^2= PI... 
True or False health insurance
please check my answer True or False CHAMPVA would be considered a primary payer for a patient who has SSI I think it is False 
Science
check answer please. An object is pulled with 3 forces: 1 at 20n to the right another at 40n to the right and the third at 30n to the left. The net force is 30n to right 
algebra
1. the function f(x)=6x/3x5 is one to one. find its inverse and check your answer. And on the second one can you tell me if I am correct. 2. solve the following exponential solution 7^2x+7^x+160=0 7^2 x+7^x59=0 (49x)+7^x59=0 49x/49=0/49 x=0/49 x=0 
Physics Help Please! Check the answer
an athlete stretches a spring an extra 40.0 cm. how much energy has he transferred to the spring, if the spring constant is 5286.0 N/m? Us= 1/2kx^2 =1/2(5286.0)(.40)=1057.2 J Thanks! 
Math
which value is the "whole" in the following problem: 14 is what percent of 56? I said the "whole" is 56, due to the problem not stating whether i was to solve the problem by using proportions or whatever. May you check my answer? Thank You 
French ASAP
Can you check my answers thanks Directions: Use the clues to fill in the blank. (I don't understand 8, and 19) 1. Madame Durand n'a pas d'enfants. Mais elle a un petit , Minouche. Answer: Chat 2. J'ai un beau  pour Camille. C'est son anniversaire. Answr: Cadeau 3.... 
Physics
A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend in the bottom 15.4 cm of the jump? Ok...after this I swear I'm done! I just need someone to check my final answer, which is 0.0858 s. 
Health care
Please check my anser thank you :) You work in a doctor's office and have just submitted several claims to a commerical insurance company. Your office will probably be reimbursed based on what? My answer is traditional feefor service system. 
physics(check my answers)
in a piston is locked in place and the cylinder is placed in a boiling water, the temperature, pressure, internal energy are all increase if a piston is being pushed inward, would it have the same answer as above 
chemistry
I got C_4 H_3 O_8 for this question but I'd like someone to check my answer, please. A 1.012 g sample of a compound containing C, H, and O was burned to produce 2.145 g CO2 and 0.3293 g H2O. Calculate the empirical formula of the compound 
Social Studies
What was the purpose of the Freedmen's Bureau? A. to provide assistance to former slaves and poor whites B. to protect Georgia's landowners C. to create segregation laws for Georgia D. None of the above My best answer is A can you please check @Ms.Sue 
Chemistry
I think these I know how to do ....just want someone to check..still sorta mixed up on the first question. Thanx For the following reaction, what is the correctly balanced reduction halfreaction? Fe(OH)3(s) + Cu(s) → Fe(s) + Cu+(aq) + OH(aq) A. e + Fe(OH)3(s) → ... 
English Answer Check
How should I revise my answer? These questions regard the poem "Jabberwocky." 1. One critic said that "Jabberwocky," despite its odd language, tells a story like many legends of knights and dragons. Do you agree? Why or why not? A: I agree with this critic’s opinion because... 
a.p. calculus help please!
My a.p. calculus teacher doesn't know how to do this problem (like many others) so he's giving us 5 points extra credit on our test if we can figure it out, but I don't know how to do it: It's as the lim>infinity (x+sinx)/(x+cosx) We know the answer is 1 because it's in ... 
Ethics
please check my answer thanks :) There has been judgement entered agaisnt Mike in the Northern District Court of New York. What statment below must be true for the judegment to be aganist Mike personally. A. He was a resident of New York B. Mike lives in the northern district ... 
Calculus (pleas help!)
For what values of k is lim x > INF coshkx/sin2x finite? (Enter your answer as an interval or list of intervals, for example, (infinity,3], (5,7). Enter none if no values of k will work.) Please help.. 
Calculus (pleas help!)
For what values of k is lim x > INF coshkx/sin2x finite? (Enter your answer as an interval or list of intervals, for example, (infinity,3], (5,7). Enter none if no values of k will work.) Please help.. 
calculus
The population of a certain community is increasing at a rate directly proportional to the population at any time t. In the last yr, the population has doubled. How long will it take for the population to triple? Round the answer to the nearest hundredth, if necessary. 
calculusplease help!!
Solve the inequality. x^3+9x^2108 less than or equal to 0. Then write in interval noation. Please can you show me step by step on how you got the answer. I have tries and I am very confused. 
Calculus
Let f(x)=1/x. Compute the difference quotient for f(x) at x=1 with h=0.3 I know that the formula for difference quotient is (f(x+h)f(x))/h, but I am not sure how I am supposed to plug this in. I have tried a few ways but webworks says that the answer is wrong every time. 
calculus 1
The point P(2,1) lies on the curve y=1/(1x) If Q is the point (x, 1/(1x) find slope of secant line. these are the points 1.5 1.9 1.99 1.999 2.5 2.1 2.01 2.01 2.001 when i calculated it i got a negative number 1/(11.5)=2 but the answer is 2. also would the points be (1.5, ... 
Calculus 1
Water is flowing into a vertical cylindrical tank of diameter 4 m at the rate of 2 m3/min. Find the rate at which the depth of the water is rising. (Round your answer to three decimal places.) 
Calculus
Suppose strontium90 decays at a rate of 2 percent per year. (a) Write the fraction P of strontium remaining, as function of t, measured in years. (Assume that at time t=0 there is 100 % remaining.) Answer: P(t)=? 
Physics question help/ check my answers
The middle two question please check my answers and tell me if I am correct or if there is something I am missing. The first and the last question I need help to understand and complete it. Thank you in advance!!! 1. What is the electric force between a +2 µC point charge and... 
science!
i want you to check my answers for the questions and i might need help on constructing the graph that i need to do for problem 7. variables and graphing assessment practice some students wanted to investigate the effect of light on the growth of spanish needle seeds (bidens ... 
Calculus & Vectors
Could someone explain this question to me? I attempted the question and here is why I chose the answer below. Thank you!  1. If A ⃗ is a vector representing 50 km/h northeast, what is 3/5 A ⃗? a) 30 km/h southwest b) 30 km/h ... 
grade 9 math slope equations
question: slove by comparison and check your solution? a)2x4y5=0 3x+8y4=0 my work so far: 2x4y=5(1) 3x+8y=4(2) _____________ 6x12y=15(3) (3)(4) 6x+16y=8(4) ____________________ 28y/28 = 7/28 y= .25 2x4(.25)=5 2x1+5 2x/2 + 6/2 x = 3 ya i was ... 
Algebra
Hi, could someone possibly check my answers to these algebra questions? Its not my strong point so have been struggling a little (or alot if they are all wrong!) 3m85m+10 = 22m 4(26x) = 824x 7(a+3)5 = 7a + 16 2x3(4yx) = 2x12y9x 2(4y1)+5y(32y) = 2(4y1) +5y(32y) If... 
SpanishPlease check my work
Could someone please check this for me. I had to rewrite the following sentence using a direct object pronoun in two different ways. I wrote: Nosotros queremos leerlos. Los hosotros queremos leer. Thank you for checking 
Calculus
The measurement of the circumference of a circle is found to be 70 centimeters, with a possible error of 0.9 centimeter. a) Approximate the percent error in computing the area of the circle. (Round your answer to two decimal places.) b) Estimate the maximum allowable percent ... 
Opinion (check)
Please check the if they are all opinions: Martin's neighbors accused the mother of eight of ordering phantom puppies to attack them and of walking in the rain without getting wet. One explanation for the girls' behavior was that they were simply bored Some of them were lucky ... 
Chem Check
Consider the following gas phase reaction: 3A(g)+ 2B(g) <==> 1C(g)+4D(g). At 181.1C, Kp=270.91. Calculate Kc under these conditions. My answer: change of n = (1+4)(3+2)=0 kp=kc(RT)^(change of of n) 207.91=kc(.0821)(454.1)^0 Therefore, kc=270.91 Is this correct? yes, Kp=... 
Meicare
Please check my answer thanks :) Hospitals that are excluded from the Medicare PPS (such as children's hospitals) are paid based on 1 reasonable cots 2. fee schedules 3. global payments 4. bundled payments I picked # 1 
Applied Dog Behavior
Please check my answer thanks 8. If the dog doesn't seem to like the sound of the clicker, you can A. hold it up in the air. B. give a better treat. C. click faster. D. put it in your pocket when you click. I picked D 
Math 116
_(Y56)=y+56 is that right. Find an equivalent expression without parenthesis. Subtract _5/16(3/8)=1/16 is this right. Please check this for me. Please it seem my problem never get answer I did some last night had not hurt any reply. 
Financing and Budget
This financial ratio measures the business's liquidity A.days recivable ratio B.average daily rate ratio C.current ratio D.profit margin I chose the letter D.Can someone check my answer 
dog behavior
pleae check my answer thanks Latent learining becomes evident when... A. a puppy grows up B. the animal is motivated to perfrom C. a dog has failed with trial and error method D. a dog experiences social faciliation I picked C 
cpcc
A 134 N bird feeder is supported by three cables as shown in Figure P4.17. Find the tension in each cable. right cable 1 N left cable 2 Your response differs from the correct answer by more than 10%. Double check your calculations. N 
Math
How to d/dx y= (9+((x9)/6)^1/5)^1/2 ? Hope u can give me the way how to calculate it. ^^ I got 1/60 ((x9)/6) ^ (9/10), i think my answer is wrong because i check at wolfram website the ans is differrent from mine (sorry i didn't write the ans bcus the ans is quite long and ... 
tax
Can someone please check my answer for the following problem. The Smiths wish to refinance their home worth $250,000. They originally paid $130,000 for the home and made $25,000 in improvements. The bank is willing to let the Smith refinance $200,000 with no further ... 
algebra I
please check my answer 2/3x24 less than/equal to 8 = x less than/equal to 12 
dog behavior
please check my answer thanks True or False Modeling is a training technique that involves providing one dog as an example for another dog to follow I think that is True 
spanish/chech
translate to spanish our father's office la oficina de nuetro padre 2translate the possesine adjective in parentheses into spanish su escuela(their) can you check my answer thank you 
Math
Can you check my work? If Angelona's weekly allowance is d dollars, which Expression represents her allowance, in Dollars, for x weeks? A. Dx B. 7dx C. X+7d D.d/x So d = allowance X=week D goes up per x So my answer is A. Dx Is this correct? Thanks for your help 
calc check please?
Given the differential equation: dy/dx = y(1+x), y(0)=1, Use Euler's method with step size .1 to approximate y(.3). ... please check this for me! no one has responded to this question yet.. thanks. y' = y(1+x), y'(0) = 1(1+0)=1 >the solution has slope 1 at the point (0,1... 
calculus
A person is jumping straight up and down on a trampoline. The height of the center of mass of the person is measured every tenth of a second. It takes just over one second to complete one full bounce. (If you want to see the data, look at the video above.) t (seconds) 2.90 3....