Calculus (Answer Check)
88,703 results, page 20

Precalculus
Use the remainder theorem to find which of the following is not a factor of x3 + 12x2 + 47x + 60 the answer is x5 but idk why 
calculus
Find all relative extrema of the function. (Enter NONE in any unused answer blanks.) f(x) = x4 – 8x3 
calculus
solve the following exponential equation 9^x=6 I get In6/In9 what is the answer approximated three decimal places? 
PreCalculus
Simplifying Complex Fractions [(x+3)/12] / [(4x5)/15] [(x+3)/12] x [15/(4x5)] (x+3)5/4(3x5) (5x+15/12x20)< final answer Did I do this right. If not could you please explain how to do it correctly 
pre calculus please help
Find all solutions of the equation tan^5 x  9tan x =0. The answer is Ak\pi where k is any integer, the constant A=??? 
calculus help
What constant acceleration is required to increase the speed of a car from 22 mi/h to 50 mi/h in 3 s? (Round your answer to two decimal places.) 
Calculus
find area of the region bounded by the curves y=x^21 and y=cos(x). give your answer correct to 2 decimal places. 
Calculus
How do you integrate 2x^5 • e^x^2 ? I would say that this cannot be evaluated because the answer is more complicated than the original problem. Am I correct? Or is it doable? 
math/Calculus
If h(x) = csc(x), find the inverse h^(1)(x). express answer in terms of sin^(1), cos^(1) or tan^(1) Don't know where to start  
Calculus
The function f is given by f(x)=3x^2+1. What is the average value of f over the closed interval [1,3]? The answer I get is 12, but the book says it's 14. I don't understand why. 
calculus
How would you use series to evaluate the lim(x>0) of (xarctanx)/x^3? I'm getting stuck, and the answer says it's 1/3 but I don't know how they got there. 
Calculus
For a cylinder with a surface area of 20 20, what is the maximum volume that it can have? Round your answer to the nearest 4 decimal places. 
Calculus II
Find the derivative of 5^(x^3+x) I know the answer, it's: 5^(x^3+x)*ln(5)*(3x^2+ 1) I just need some help on how to derive that. What rule is at work here? where did the ln come from? 
calculus
A 13 ft ladder is leaning against a house when its base begins to slide away. By the time the base is 3 ft from the house, the base is moving at the rate of 5 ft/sec. Answer the following: At what speed is the top of the ladder sliding down the wall at that time? Answer = ft/... 
precalculus
can you check my answers? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k  1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k  1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k  1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19 + ...+[6(k  1) + 1] + (6k7 +1) + (6k + 2) ... 
statistics
Assume heights and weights are normally distributed with the given means and standard deviations from the table below. Strata Mean Standard Deviation Mean Standard Deviation Height Height Weight Weight (inches) (inches) (pounds) (pounds) U.S. Men 69.3 2.8 191 28 U.S. Women 64.... 
calculus
Find the arc length of the graph of y = x from x = 0 to x = 3 using calculus. 
calculus
I need help with this calculus problem. H(S)=S/(1+S) If F 1/2, 1/2 & (a+1)? I can't figure out what this mean /? 
calculus
Why do we end up with f(x) instead of f(t) on the second fundamental theorem of calculus? 
calculus
Use the Fundamental Theorem of Calculus to find G'(x) if: /x² G(x)= / cos t dt / 1 
Calculus; Product Rule
Find the value of dy/dx for the given value of x. a) y = (1  2x)(1 + 2x), x = 1/2 y' = 2(1 + 2x) + 2(1  2x) y' = 2 + 4x + 2  4x y' = 4 How do I find the derivative at x = 1/2 if there is no x variable to substitute the x value with? According to my textbook, the answer is ... 
Business Finance
Please help!!!!!!!!!!! On November 1, 2009, Broom Company received a bank statement that showed a $2950 balance. Broom showed a $4010 checking account balance. The bank didn't return check No. 124 for $1080 and check No. 138 for $720. A $3200 deposit made on October 30 was in ... 
Health please cehck my answer
please check my answer thanks :) Dr Bob make an erronrous entry in the record. Three years later nurse Sue noticed the mistake and corrected it Why was this correction improper !. Too much time passed to correct the record 2. The corretion was made by the nurse not the doctor ... 
Calculus Please Help
The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer. my answer 30.16 
calculus
what is the answer for the integral of (1/(xln(x)) from 1 to infinity? I first found the integral using u substitution so u=ln(x) and du=1/x*dx this gave my du/u,leading to the ln(u) =ln(ln(x)) from 1 to infinity then I did the limit as t approaches infinity of 1/(tln(t))  ... 
calculus
Sand falls from a conveyor belt at a rate of 20 m^3/min onto the top of a conical pile. The height of the pile is always 3/4 of the base diameter. Answer the following. a.) How fast is the height changing when the pile is 10 m high? Answer = m/min. b.) How fast is the radius ... 
calculuscan someone please help me with this ques
Find all zeros of the following polynomial. Write the polynomial in factored form. f(x)=x^33x^2+16x48 I put: x^2(x3)+16(x=3) (x3)(x^2+16) For zeros: x3=0 x=0 **My teacher stated check the equation solution again. What is the value for x and hence what is the zero for the ... 
PLEASE HELP CHECK ANSWER SCIENCE
5. Which of the following body systems does not rely on the autonomic nervous system to stimulate involuntary events? A. skeletal system B. digestive system C. circulatory system D. respiratory system My Answer skeletal systems 
Safety
who is the father of occupational medicine in the United States I can't find anything on the web. Here is my suggestion: At the school, check the encyclopedia under Public Medicine, and Occupational Health. If that fails, call the local Public Health Service and ask to speak ... 
Chemistry please check
1. All of the naturally occurring radioactive decay series end when the radioactive elements have decayed to bismuth (Bi) hydrogen (H) lead (Pb) uranium (U) answer: Uranium (U) 2. This type of radiation can easily pass through a human. gamma ultraviolet beta alpha answer: ... 
math(check answers please)
please check my math answers again thanks. by the age of 27,justin had visited 25 out of the 50 states.what fraction of the states had justin visited?write the answer in simplest form. A.2/1 B.25/50 C.1/2(I PICKED THIS) D.1/3 Heather drove 10 miles in 22 minutes.which is the ... 
Nutrition of the young child
Following the nutritional label on a jar of peanut butter, you determine that 1 once of the peanut butter contains 115 calories and 9 grams of fat. Whst percent of the calories come from fat. A.30 B.40 C.70 D.80 I chose C as my answer. Can someone check my answer. 
iready mastery check
Sally has 3 white tennis balls and 4 orange tennis balls. Drag a ratio into each box to represent the relationship between the two quantities. Answer choices may be used more than once. Not all answer choices will be used. 
SpanishPlease check my answer
Did I answer the question correctly? ¿Qué haces cuando hay un examen grande? Yo estudio cuando hay un examen grande Thank you 
Chemistry
I would like to check my answer to the following question: The permanganate ion oxidizes bromide in acidic conditions to form bromine, manganese(II) ion and water. Give the balanced equation of the reaction. My answer: 3e + 8H+ (aq) + MnO4 (aq) + 2Br (aq) Br2 (aq... 
Math
Brody deposited $500 into an account that earns 4.2% interest compounded annually. He makes no additional deposits and no withdrawals. Approximately how much interest will the account have earned after 7 years? A $167 B $420 C $542 D $665 I think the answer is D. But can ... 
Math  please double check me
There are 42 accounting classes with 31 students in each class. Estimate the total number of students in the accounting classes. a. 1200 b. 900 c. 1600 d. 1500 answer: c One kilometer is equal to 1000 meters. What fractional part of a kilometer is 500 meters? Simply your ... 
vocab (english)
i have improving vocabulary skills 4th edition book and i need sentence check 2 answers and final check 
Calculus 1
Use the fundamental theorem of calculus to find the area bounded by f(x)=3 square root of x+2x and the xaxis between x=0 and x=1 
Calculus AP need help!
Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function. If f(x)= ∫(4,x^3)√(t^2+10) dt then f '(x). 
PreAlgebra
Can U Just Check My Answer Please! Thank You Guys :D Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets of values. My Answer: B 
PreAlgebra
Can U Just Check My Answer Please! Thank You Guys :D Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets of values. My Answer: B 
AlgebraPlease check
Please check sqrt of 2x + 15 = x Answers: 5.3 3.5 3 5 I think according to my calculations it would be 5, correct? sqrt root of 7x = 3solve for x Answers: 2 2 4 4 My choice would be 2 Is that correct I squared both sides and came out with 7x = 9 and then x = 2 Thank ... 
French
Could you check these thanks Directions: Complete each sentence with the correct form of the verb in parentheses. 1. Le matin, tout le monde veut la salle de bains. Moi, je  à sept heures. (se réveiller) Answer: me réveille 2. Mon frère  à sept heures ... 
Math  Solving equation (check )
7 = (210+88t)/(2(sqrt(210t+44t^2))) Is t= 1.0479....? I got the denominator multiplied by 7 and squared both sides to eliminate the sqrt and then simplified, used the quadratic formula to find the values but since the questions is about squirrels growth it can not be a ... 
about jiskha/ math
I had a dumb question awhile ago I had submitted a question ( Ted bought four lawn chairs for $ 22 each a pinic table for $ 212 and an umbrella for $85) etc anyways I had wanted someone to check my answer which they did , however I lost my paper Is there away to retrieve my ... 
PreCalcPlease check my answerI think I have it
Could someone please check theseI had tried one last night but it was really wrong so I'm been workinghopefully these are correct. What are the roots of the equation and answers have to be simplified 2x^2 + 5x10 =0 2x^2 + 5x10+10=0+10 2x^2 + 5x = 10 2x^2 + 5x/2 = 10/2 2x^2... 
PreCalcPlease check my answerI think I have it
Could someone please check theseI had tried one last night but it was really wrong so I'm been workinghopefully these are correct. What are the roots of the equation and answers have to be simplified 2x^2 + 5x10 =0 2x^2 + 5x10+10=0+10 2x^2 + 5x = 10 2x^2 + 5x/2 = 10/2 2x^2... 
calculus; implicit differentiation
Use implicit differentiation to find the slope of the tangent line to the curve at the point (4,1) 1x^2  4xy + 3y^3 = 29 I differentiated both sides and solved for dy/dx and got 2x4y/9y^24x. Then I plugged in X and Y and got 4/7 but when i enter my answer it's wrong. ... 
Chemistry Answer Check
In an ideal gas, if only one molecule in a thousand has enough energy to react, how can all molecules in a reactor be consumed? My answer: when the one molecule reacts, it causes the other molecules to gain energy. Is this right? I'm still confused on the question 
calculus
Find the distance from (3,7,5) to each of the following. a. the xyplane b. the yzplane c. the xzplane d. the xaxis e. the yaxis f. the zaxis **I just wanna check my answers because I didn't really understand it when the teacher was explaining it and it's an even ... 
Math
Please double check me Find each rate 240 pounds of fertilzer divide by 6 lawns Answer: 40 lbs/lawns Which is the better buy: 5lb of sugar for $4.75 or 20lb of sugar for $19.92 Answer 5lb Write the following proportions If Maria hit 8 home runs in 15 softball games, then she ... 
Physics
Two students are on a balcony 20.5 m above the street. One student throws a ball (ball 1) vertically downward at 11.1 m/s; at the same instant, the other student throws a ball (ball 2) vertically upward at the same speed. The second ball just misses the balcony on the way down... 
Calculus
Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 16cm and a height of 8cm, at the rate of 4 cm^3/min. At what rate is the depth of the water changing at the instant when the water in the tank is 6 cm deep? Show all work and include ... 
algebra 
#21 can you help me solve this equation: 3x^2 (2x  2) i keep getting: 6x ^2 6 #22 can you check this one: (2x ^2) (6x^2) i got 12x #23 can you check this one: (4m^2 + m 2) + (m^2  3m) i got: 4m ^2 + 4m2 #25 can you check this one: (3x^2 x 1) + (2x^2 + 2x 1) i got: ... 
Calculus, check my answers, please!
Could someone tell me if I'm right, and if not what the correct answer is? Thank you! I'd appreciate an explanation, too, if you could. :) 1. Suppose you're given the following table of values for the function f(x),and you're told that the function is even: x f(x... 
English Check answers
2) Your online chat name should never contain your full name. True or False ~ (My answer is TRUE) 3) It is safe to tell your online acquaintance (someone you have NEVER met) your a. full name b. address c. phone number d. favorite music ~ (My answer) 4) Using the ideas of ... 
calculus
Help! I have a test tommorow! I don't understand (b), (c), (e), and (g). The answers are listed following the each question. Here's a discription of the graph: There is a graph of a function f consists of a semi circle (3 to 1 faced downward on the xaxis) and two line ... 
Pre Calculus
Find the roots of the function g(x)=x^3 +16x a)0,4i, 4i b)0,4,4i c)0,4,4i d)0,4,4 The equation can be rewritten x(x^2 + 16) = 0 The function is zero if x = 0, OR if x^2 = 16 That should give you a hint of what the roots are. So you take the square root of 16 which gives ... 
Math
Can someone please check my answers? A yard has a square gate that has an area of 8 square meters. 1. What is the height of the gate in meters? Answer: 28 meters 2.How many feet would that be? Answer: 8.4 feet 3. If each side was 1 foot longer, what would be the area of the ... 
math
If I am making a map that has a distance of 200 mm, and the actual distance is 700m. How do I find the calculations to know how much each mm is? You can set up a proportion with x being the number of meters represented by each mm. 200 mm / 700 m = 1 mm / x If you post your ... 
French
Could you please check these thanks. Directions: Complete the following with croir. 1. Il que tout est moins cher pendant les soldes. Et vous, vous  ça aussi? Answer 1: croit Answer 2: croyez 2. Julien  que l'examen va être facile, mais nous, on... 
English
Please check my answer thanks:) This is an example of paraphasing Sue studied Dr Jone's article and restated it in her own words. I said yes 
Health Law
please check my answer thanks :) a pretrial conference most likely would occur when... i said ... during an appeal 
math mortgages please check answer
The monthly payment on a$100,000 mortgage at a rate of 8 1/2 % for 20 years is 8678.23 I am not sure 
health
In which condition is the patient most likely to hemorrage? a.thormbocytopenia b.polycythemia c.thalassemia d.erythroblastosis fetalis (c) could you please check my answer? 
chemistry
At what temperature (C) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1C? T1V1=T2V2 T1(6.1)=(17.8)(300.25) T1=876? Please check my answer 
chemistry
At what temperature (C) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1C? T1V1=T2V2 T1(6.1)=(17.8)(300.25) T1=876? Please check my answer 
chem check my answer
magnesium hydroxide + hydrobromic acid > is the formula for that Mg(OH)2(s) + HBr(aq) >H2O(l) +BrOH(s) and are the physical states correct?? 
8th grade math
I am not sure if I did it correct, can you please check this answer for me, Ms.Sue? :) Writing equations in pointslope form: m:3, p:(1, 2) (yy1) = m(xx1) y(2)=3(x(1)) y+2=3x+3 y+22=3x+32 y=3x+1 
office finances
which of the following would require a cash receipt a.credit memo b.purchase order c.check d.refund my answer is b 
teachers aide
Resources for educating young children with diverse abilities part3 Please check my answer?This is my last exam. 1c 2b 3c 4c 5a 6d 7b(not sure) 8d 9b 10c 11b 12a 13d 14c 15d 16a 17c 18d 19c 20a 
check my science hw please.
24. can provide an economic benefit to A. drug companies B. tourists C.hikers D.endangered species I got A for my answer. 
Maths
Check my answer please? Not sure if I did this right. Let y = f(x) be a cubic polynomial with leading coefficient a = 2 and f(2) = f(1) = f(2) = 0. find the factored form of f. I got: f(x) = 2(x + 2)(x  1)(x  2) 
Edu tech
Can you please check this Probability can be used to determine the likelihood of specific ________. A:games B:occurrences C:questions D:opportunites D is my answer 
Language arts
most unintentional poisoning occur in children under A.10 B.2 C.5 D.6 months My best answer is b can you check please @Ms.Sue 
Math
Please check my answer~ Find the distance between points C (4,12) and D (2,5) to th3 nearest tenth. d=sqrt(2,4)^2+(512)^2 d=sqrt36+49 d=sqrt85 d=9.2 
ss
Can someone check this answer? Haiti shares an island with which country???? Ael Salvador BThe diminocon republic CCuba DThe Bahamas I think it is b or c pls help :) 
S.S
Many Midwestern cities began as centers of _________ and processing. A. farming B. automobile manufacturing C. transportation ~~~ D. recessions Plz check my answer 
Chemistry
Can someone check my answers for me thank you. This is my 3rd time posting this one up...maybe its just not going through bc I don't see it on the current ?s. 4NH3 + 7O2 > 4NO2 + 6H2O 1)How many grams of oxygen are necessary to produce 4.50 moles of NO2? answer: 252 grams... 
Calculus
I need to take a college calculus class. Can someone direct me to a site which might help me get a good start? Thanks in advance. 
calculus
Use the fundamental theorem of calculus to evaluate the following integral ∫^π/2 **the bottom is zeroe. cosx dx 
Calculus
Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes,and points of inflection for y = x^4 + 2x^3  x + 2 
Calculus
Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. intergral s^2/(1+3s^4) ds from sqrtx to 1 F'(x)=? 
Calculus
Integrate e^(x^2/2) dx What branch of calculus is this? Is this differential equations? 
calculus
Find the limit of this calculus problem.? (5x3)/(ln(5+4e^(x)) x=inf 
calculus
How can we verify area of square and rectangle by calculus ? 
Calculus
How can I efficiently study for a Calculus test with 8 sections? 
calculus
Can I have a website of Beginner calculus books? 
Calculus
Find the distance from point P<5,5,2> to the line x=0 , y=55t, z=2+t. I keep getting 0 and that's not the correct answer and I can't figure out what's going wrong. 
Precalculuschck answers
Determine the value of w so that the line whose equation is 5x2y=w passes through the point at (1,3). Answer: w=11 
pre Calculus
how do you find additional points on a line with a slope of 1/2 and a given point of (7,2)? im sorry but i still cant get an answer for this question. 
CALCULUS
Determine whether F satisfies the hypotheses of the mean value theorem on [a,b], and if so, find all numbers c in (a,b). f(x)=X^2/3 [8,8] why this answer is f is not differantible? 
Calculus
no one on physics forums seems to know the answer so I was wondering if you guys could help post anser on these forms of course if you can help my question is here h t t p : / / w w w . p h y s i c s f o r u m s . c o m / s h o w t h r e a d . p h p ? t = 4 2 1 7 5 8 
AP Calculus
Find (dy/dx) for the following implicitly defined function: cos(x2y) = 3y for the answer, i got.. dy/dx = (sin(x2y)) / (32sin(x2y)) but i'm not sure if it's right.. 
calculus
Consider the function f(x)=In(x^2+1). Calculate the slope of the tangent line at the point (2,ln(5)). Round your answer to two decimal places. 
Calculus
integral 5e^t(sin(t))dt I figured this out as the answer 5e^t+cos(t). My question is if I need to put a +C at the end of the equation. Thanks for your time. 
Calculus
Use integration by parts to find the integral. Round the answer to two decimal places if necessary. (x+4)^ln x dx between 3 and 0 
calculus
Solve the differential equation below, given the initial condition f(0) = 3. Express your answer using words or symbols. y=5x^2 
Calculus
Determine an expression, in simplified form, for the slope of the secant PQ. Given: P(1,3) , Q(1+h, f(1+h)) , where f(x) = 3x^2 PQ=Y2Y1/X2X1 I keep getting wrong answer, arghhh.