# Calculus (Answer Check)

85,687 results, page 23

### Match Check

if carrots are selling at $.0125 a pound, how many pound we can buy for a dollor. Answer 800 Right ?

### dressmaking

need to check my answer, exam 042020 which type of line is considered to be softening line in design

### pre algebra check

Use the percent equation to answer the question. What percent of 130 is 156? I get 202.8??

### college alg

the function f(x)=6x+9/3x-7 is one to one. find its inverse and check your answer. f^-1(x)=? please show work

### Math: Check answer

3. Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.) x = –4.24 C.) 4.24 *D.) no solution Thank you

### Math

Study the equation below. 25=2x+3 Which equation has the same solution? Answers: A. 28=2x B. 22=2x C. 50=x+3 D. 25/2=x+3 My answer is B. 22=2x. Please check if I am right. Thank you!

### math check my answer please

Simplify 3√125a^1b^3 (By the way,in 3√, 3 is the index) 3√125a^1b^3 3√125 * 3√a^1 * 3√b^3 5 * 3√a^1 * 3√b^3 I'm stuck what to do next.

### MATH!!! CHECK ANSWER

1. How many solutions can be found for the equation 4x + 5 = 10? A. Zero B.One**** C.Two D.Infinitely Many 2.What is the value of z in the equation 3z − 7 = 14? A.3 B.4 C.7**** D. 21

### English (check answer)

The success of my presentation tonight ___________ on you. 1. depends 2. is depending 3. will depend 4. has depended is it will depend?

### To @Bosnian

I posted a follow up question to your answer to my recent question about a sum of a series.Hope you can check it. Thank you!

### calculus

a) If x3 + y3 - xy2 = 5, find dy/dx. (b) Using your answer to part (a), make a table of approximate y-values of points on the curve near x = 1, y = 2. Include x = 0.96, 0.98, 1, 1.02, 1.04. (c) Find the y-value for x = 0.96 by substituting x = 0.96 in the original equation and...

### Please check my Calculus

1. Find all critical values for f(x)=(9-x^2)^⅗ A. 0 B. 3 C. -3,3 D. -3, 0, 3 E. none of these I got D. I found the derivative and solved for critical numbers. 2. Find all intervals on which the graph of f(x)=(x-1)/(x+3) is concave upward A. (negative infinity, infinity) ...

### Child Care Environment

You're a teacher in an area day care center. Before your children arrive each morning, you set up several areas with a variety of hands-on activites. As each child arrives, he or she chooses an activity that interests him or her. What type of curriculum organization are you ...

### Physics check my answer please

The atmosphere on Mars is almost all carbon dioxide (CO2), and has a pressure of about 6.9×102 Pa, much less than that of Earth. At −22°C (a warm day on Mars), what is the mass of one cubic meter of the atmosphere? (Assume the atmosphere is completely CO2.) I got 0.020...

### CALCULUS

Please help.. ʃ (4sin²x cos²×/sin 2x cos 2x)dx That's integration of (4sin^2x cos^2x over sin 2x cos 2x) dx i've got it from the back and it has an answer from the back page of the book but i want to know how to solve it..i really need it for practicing this subject......

### math algebra 1

There are 4 times as many nickels as dimes in a coin bag. The coins have a total value of 600 cents ($6.00). Find the number of nickels. Write and solve an equation to do so. (i found the answer through guess and check but i need to know the equation....btw the answer is 80 ...

### Algebra 2

I've got some homework about ellipses and I am not sure if I am doing these right. So if you could check my answers I would appreciate it. Thanks!! 1.) Write an equation for an ellipse if the endpoints of the major axis are at (1,6) and (1,-6) and the endpoints of the minor ...

### Math - point on the graph (check +help)

Determine the coordinates of the point on the graph of f(x)=sqrt(2x+1) where the tangent line is perpendicular to the line 3x+y+4=0 I do not seem to get the answer... I find the first derivative of f(x0 and equate it to the value of the slope from the tangent line. the answer ...

### Chemistry (just need someone to check my answer)

When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find the number of moles of oxygen that are needed to form 6 mol of Fe2O3. My answer: 9 moles of oxygen

### English

Writeacher, could you please check the last two paragraphs I posted. I need to check everything for tomorrow. There is still one more paragraph after those and then we will have finished! Thank you for your invaluable help!

### 6th grade science - CHECK MY ANSWER

A color-blind woman marries a man who is not color-blind. All of their sons are color-blind, but none of their daughters are color-blind. Color-blindness is likely...? Answer choices: 1.the result of having too few chromosomes. 2.the result of having an extra chromosome. 3.a ...

### Science -Check Answers-

# 2. When __________ forces act on an object, they cause the object to move. •Balanced •Unbalanced (?CORRECT?, MY ANSWER) •Friction •Net # 4. Which of the following terms BEST describes the scenario below? A meteor moving through outer space continues to move on the ...

### calculus

3logy^3 + log y^2 I had this on a test I put logy^18 was the answer 3 logy^6 ?

### Calculus - repost

Find the derivative of F(x)= integral from -2 to x of sqrt(t^3+8)dt? My answer: sqrt(x^3+8)? Is this right?

### Calculus

Evaluate the integral e^x sin4x dx. I know the answer is 1/17 e^x sin4x - 4/17 e^x cos4x + C but I don't know how to solve it out.

### Calculus

the integral of sin^3xcos^2x my answer is -(1/2)(cosx)^2+(1/4)(cosx)^4+c but this is incorrect, please help.

### Calculus

find f'(a) for f(x)=1/sqrt(13-7x) i got my answer to be 7 / (7(13-7x)sqrt(13-7x)) but it says i am wrong please help

### Calculus

find f'(a) for f(x)=1/sqrt(13-7x) i got my answer to be 7 / (7(13-7x)sqrt(13-7x)) but it says i am wrong please help

### calculus

Let x = 1 and Δx = 0.01. Find Δy. (Round your answer to five decimal places.) f(x) = x/x^2 + 5

### calculus

definite integral of (e^(8x))cosh(8x)dx from 0 to 1/16 -I substitued the definition of cosh in, i.e. (e^(8x) + e^(-8x)/2 but i cant get the "e's" to combine and i know the answer is e/32

### Calculus

Find the derivative. d/dx[sqrt of x (x^3 +1)] My answer in its most simplified form: (7x^3 + 1)/ 2 • sqrt of x

### Calculus 1

Find the derivative dy/dx for the following. Simplify your answer. y=(ln(x^2))/(x^3) I got (2/x x^3-3x^2 ln(x^2))/((x^3)^2) for the derivative is that correct? Or no?

### Calculus

Find the value of the derivative (if it exists) of f(x) = (x+3)^(4/3) at x=-3. So I got (4*(x+3)^(1/3))/3 for the derivative and 0 for the final answer.

### French 1

could you please check this god bless. Directions are using the following words ma, mon, mes, ta, ton, tes, sa, son, and seu 1. Qui est ----- amie. Answer: Mon amie est Briana. 2. Qui est----- ami. Answer: Mon ami est Alex. 3. Ou habitent ----- grands-parents. Answer: Mes ...

### Calculus

How do you find the derivative of (x-2)^.5 times (2x+1) times (x-3)^-.666666667? What is the final answer as well?

### Calculus

find y' of 4(cos(x^3))^2 when x = 1. I got -24(1)(cos(1)(sin(1) = -0.4187 but the answer is -10.9.

### Calculus

Find the derivative of the integral from 2 to 5x of (sqrt(1 + u^2))/u. My answer: (sqrt(1 + 25x^2)/5x) * 5

### MATHS

Could you please check my answer? Daniel played a cards game in which each loss meant that he had to give the other player half the cards he had left. He lost four times, one after the other, and then had 3 cards left. How many cards did he have when he started? ANSWER: 72

### Education

Which of the following statements about the field of child development is correct? A. It’s devoted to understanding human constancy and change over the lifespan. B. It’s part of a larger, interdisciplinary field known as developmental science. C. It focuses primarily on ...

### English

Identify the sentence that is punctuated correctly. A. Here is our check, Mr. Vons, for $7.35. B. Here is our check Mr. Vons, for $7.35. C. Here is our check, Mr. Vons for $7.35. D. Here is our check Mr. Vons for $7.35. D

### English

Identify the sentence that is punctuated correctly. A. Here is our check, Mr. Vons, for $7.35. B. Here is our check Mr. Vons, for $7.35. C. Here is our check, Mr. Vons for $7.35. D. Here is our check Mr. Vons for $7.35. c

### Calculus

Find the real solutions of this equation. If there is no real solution enter NONE. (3X+1)^1/2=8 Is the answer 2.93

### Calculus

find all values of x for which function is differentiable. y=lnx^2 why is the answer= for all x doesn't equal 0?

### Calculus

Suppose that f(2)=3 and f′(2)=5. Let g(x)=x^3f(x). Evaluate g′(2). Your final answer should be a single number.

### Did I do this right?-Calculus

y' and y'' for x^2- xy + y^2 = 3 y'= (y-2x)/(2y-x) y'' = [(y'-2)(2y-x)] - [(2yy' - x)(y- 2x)]/ ((2x-y)^2) final answer for second derivative is: [2y^2- 5xy + 2x^2 - 2y^3 + 8xy^2 - 8x^2y/ ((2x-y)^3)] - [(4y + 2x + xy - 2x^2)/((2y-x)^2)] is this right. thank you

### Calculus

g(x)= {0 if x<0 {x^2-2x if 0≤x≤2 {2 if x>2 Find all values x=a where the function is discontinuous. Is the answer 0 and 2 or just 2?

### Calculus

Find y" by implicit differentiation. x^3+y^3 = 1 (x^3)'+(y^3)' = (1)' 3x^2+3y^2(y') = 0 3y^2(y') = -3x^2 y' = -3x^2/3y^2 y' = -x^2/y^2 y" = [(y^2)(-x^2)'-(-x^2)(y^2)']/y^4 y" = [(y^2)(-2x)-(-x^2)(2y)]/y^4 y" = [(-2xy^2)-(-2yx^2)]/y^4 y" = -2xy(y-x)/y^4 y" = [-2x(y-x)]/y^3 My ...

### conclusions - check answer

Which of the following is a true statement about writing introductions of rough drafts? A. Do not worry about the central point of your essay; it will happen later on as you revise your paper. (MY ANSWER) B. Pay close attention to the correct spelling of your words. C. Make ...

### Calculus Help

If f(x) = sin(7 − 5x), find f′(π), which is the derivative at π: −0.754 −0.657 0 0.657 3.770 I chose 0.657 ... I did not really get this exact answer, its just that while I was trying to figure this out my answer was actually 0.6978 but I just...

### calc check: average value

Find the average value of the function "f(x) = x^2 sqrt(1+x^3)" on the interval [0,2]. and this is what i did.. please check for mistakes. thanks :D f(x) = x^2 sqrt(1+x^3), [0,2] f ave = (1/(b-a))*inegral of a to b for: f(x) dx f ave = (1/(2-0))*integral of 0 to 2 for: x^2 ...

### Calculus

A steady wind blows a kite due west. The kite's height above ground from horizontal position x = 0 to x = 60 ft is given by y = 150 − 1/40(x − 50)^2. Find the distance traveled by the kite. (Round your answer to one decimal place.) THe answer is supposed to be 94.2...

### Calculus

alright. i need to write a definite integral for the volume and evaluate the integral for the region bounded by y=x^2, y=0, and x=1 revolved about the a) x-axis, b) the y-axis, c) x=2, and d) y=-2. HELP! Lets do the x=2 axis. dV= pi rh dr where r is radius, h is height. r= x-1...

### Calculus

The population of bacteria in one cubic centimeter of the blood of a sick person has been modeled by the function P(t) = 80t(0.86^t) where t is the time, in days, since the person became ill. I was able to answer all of the questions besides, Estimate how fast the population ...

### math net asset value

Please check my answer thanks :) The net asset value of a mutual fund having total assets of $57,000,000 and liabilites of $8,550,00 There are $15,960,000 worth of outsatnding shares my answer is the net value is $4.80 per share

### check

#19, Inclusive Language-Quoting from Biased Material - The mayors and their wives were invited on a tour of the state buildings. Answer: The maors and their wives[sic] were invited on a tour of the state buildings. #8. Puctuation-colon - Studing is exciting: find something ...

### math check

Would some please check these and see if I am doing them right thank you 1. Gasoline is about $2 per gallon. You use about 1 1/2 gallons each day driving to and from work. How much should you budget for gasoline over the next month (about 20 workdays)? Answer 1 1/2 x $2.00 = $...

### Math

so confused on this. I have answered but want someone to check me. Identify the distribution as symmetric, left-skewed, or right skewed. 1. exam scores for an exam in which most students did well, but a few students failed. Answer: Left Skewed 2. Amount of credit card debt of ...

### Algebra-Please check

1. solve sqrt (11-x) = sqrt(x-7) choices are 6,7,8 or9 I think according to my calcs the answer is (9) The range of f(x) = sqrt(3x-6) - 2 answers would be y<= (-2) y>= (-2) y> (-2) y<=(2) I think the answer is y <= -2, correct I don't get this one at all: Solve...

### Health law

please check my answer the right to privacy is in the first admendment True or False I said True

### Algebra Can someone who is serious respond

Can someone check my answer please? Find the corresponding y values for x= -2,-1,0,1,2,3 if y= x^-x-2. My answers are under Y. X Y -2 -4 -1 -2 0 -2 1 0 2 4 3 10

### Health

please check my answer thanks True or False Dry heat is the best method of sterilzation I said True

### Math Algebra check please

Solve w= (va)/(r^2+a^2) for a. I applied the quadratic formula a= (v/w +- sqrt (v^2/w^2 - 4*(-wr^2)) /2 and I have the answer as a= (v+/- sqrt[v^2+4w^2r^2]/w is this right?

### English

Question 12 He wrote a hot check. The word hot is used poorly clearly connotatively denotatively Answer D

### Algebra 2

can someone show me how to do it step by step please! Use a graph and table to solve each system. check your answer {y+x=5 {3x-5y=-1

### Chemistry; Check

1. The amount of heat absorbed in a chemical reaction is measured with a thermometer. a. true b. false answer: False

### Science 7R - Hw Qs. Check Q2 (plzzzz read!!!!)

2. Veins leading back in the heart become Answer - smaller and smaller? am i correct?

### Science 7R - Hw Qs. Check (plzzzz read!!!!)

1. Arteries branching away from the heart become Answer -larger and larger? am I correct?

### SS7R - HW Qs. Check (Q3)

The ___________ states the responsibilities of the government and protects the rights of states and citisens answer - south am i correct????????

### Math

Just wanted to check over these.. "What is (–7)^5 in expanded form? –7 • –7 • –7 • –7 • –7 –7 • 5 (–7) • 7 • (–7) • 7 • –7 5 • 5 • 5 • 5 • 5 • 5 • 5" The answer is "–7 • –7 • –7 • –7 • –7", right? Also: "Which...

### Math: Please check answer

3. Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = –0.24 B.) x = –4.24 C.) 4.24 *D.) no solution Thank you

### Media (Ms.Sue or Writeteacher)

Who are the stakeholders in media? once you have helped me with this question, I will post my answer. Please check it thanks

### Math (check answer)

1.never the difference of two positive integers is _____ negative. A.always B.sometimes C.never

### Algebra 2 (Math)

Divide 3x^3 + 3x^2 + 2x – 2 by x + 3 using long division. Check my answer please. 3x^2 – 6x + 20 3x^2 + 12x – 16 3x^2 + 12x – 16, R 58 3x^2 – 6x + 20, R -62 (I think that it's this one)

### Math

What is the ratio of the measures of side BC to side RS in simplest form? (1 point) A.2:1 B.6:2 C.1:2 D.none of these @Ms.Sue My answer is A. can you please check

### Algebra

Please check my answer The ordered pairs (0,1), (1, 6),(2, 36), (3, 216), and (4, 1,296) represent a function. What is a rule that represents this function? A y=x^6*** B y=6x C y=x+6 D y=6x

### check my spanish 3

escriba la forma del verbo indicado en el tiempo indicado yo/ tener/ futuro My answer is tendré

### Precalculus - check

Find the derivative of the function. r(t) = log_4(t + sqrt(t)) My answer (sorry, it's messy): (1+(1/2sqrt(t)))(1/tln(4)+sqrt(t)ln(4))

### Math--Please Check!!!

Hi, I asked this question yesterday and I was given help in how to solve it. After working the problem, I have came up with $575.27. The problem is: When Beth finishes college, she has a balance or $2876.37 on a credit card with an annual percentage rate (APR) or 17.3% She ...

### calculus

Find the coordinates of points where the graph of f(x) has horizontal tangents. As a check, graph f(x) and see whether the points you found look as though they have horizontal tangents. f(x) = −x3 + 6x2 − 9x + 13 (x, y) = ( ? ) (smaller x-value) (x, y) = ( ? ) (...

### Algebra

x^2-5x=-10 =x=5+i sqrt15/2 ,5-i sqrt15/2. CAN SOMEONE CHECK MY ANSWER.

### Math 116 algebra please check

Solve using the multiplication principle. 10x= -90 The solution is x = -9 please check

### Asap can someone pplz check these answers

Please check my answers I have 2 do other things right now

### Problem Solving

Can someone please check my answers for the following problems. 1. Charles works at the movies. He gets paid 10.50 an hour. Charles normally works 8 hours a day, 40 hours a week and gets paid every two weeks. Last week Monday Charles called in sick. On Wednesday Charles only ...

### Calculus

How would I calculate the definite integral of e^(-k/2*x^2) dx over the interval of (0,+∞) I know the answer is sqrt(pi/(2k)), but how would I get that?

### calculus

I am confused on how to write this function as an exponential function having a base 10: P(t)= 50e^(0.5t). The answer in my textbook is: P(t) =50(10)^(t/4.6)

### Calculus

Evaluate the integral: the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this answer is incorrect. Please help. Thanks

### Calculus

Evaluate the integral: the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this answer is incorrect. Please help. Thanks

### Calculus

Evaluate the integral: the integral of [5e^(2t)]/[1+4e^(2t)]dt. I have tried this problem so many ways and cannot come up with the correct answer :(

### calculus

what is the equation for taking the derivitive of -x^2+x just equation setup i don't need an answer from power rool

### Calculus

√(x+2) -7 =√(x+9) If you could show your work on how to get the answer that would be awesome. I really need to learn how to do this

### Calculus

Find the derivative of y=cos^6w+cos(w^6) The answer I have is -6(cosw^5sinw+wsin(w^6)) but it's not right...

### Calculus

For what values of x is the graph of the function f(x)= x^2e^x concave down. Give your answer using exact values

### Calculus

Explain why the plane with Cartesian equation 2x+5z-3=0 never intersects the y-axis. Answer:Because there is no y-value in the equation?

### Calculus

If y= (x^2+20)/(x-4) Find all critical Numbers. After get f' i got the answer -5/4. What did i do wrong or is that the critical number?

### calculus

Use a linear approximation of f(x)=^3√x at x=8 to approximate ^3√7. Express your answer as an exact fraction.

### calculus honor

If y = 2x3 – 4x and , find when x = 1. Give only the numerical answer. For example, if = 3, type only 3.

### Calculus

Find d^2y/dx^2 in terms of x and y given that 8x + 6y^2 = 8. Use the original equation to simplify your answer. A. y'' = -(4/9y^3) B. y'' = -9y^3 C. y'' = -4y^3 D. y'' = -27y^3 E. y'' = -(8/27y^3)

### English

Is there a site where it can accurately check grammar? I use the the Word grammar/spell check, and it still messes up at times :/ thanks much!

### math problem check

would some one please see if I am correct with these problems 1.Add. write the answer in simpliest form. 3/11 + 9/11 + 1/11= 13/11= 1 1/2 2. Subtract write the answer in lowest term. 19/24 - 7/24= 12/24 = 1/2 3. Victor owned 9/10 of a family business he sold 2/5 of the ...