Calculus (Answer Check)

85,687 results, page 83

Calculus 1

Find the limit. lim x->0 (e^(6/x)+8x)^(x/2)


Find lim as (x,y) goes to (0,0) of (e^(-x^2-y^2)-1)/(x^2+y^2).


find the inverse of the matrix. [ 16 1 ] 1 16

Integrals calculus

7/x^2-8 does it give you 7ln(x^2-8)


Locate the discontinuities of the function y=(5)/(3+e^(1/x))


lim f(x)=? x->3- f(x); -3.7, -3.97, -3.997, -3.9997, ?


Find the slope of x^2-16xy+y^2=1 at (1,1). Is this -1?


Find dy/dx at the point (-3, 1) for the equation x = y^3-9x^2+5.


Find the dot product of: <-1, 7> and <2, ¾>.


Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v)


What is the absolute value of: 3 - 8i? A. 9 B. 64 C. √55 D. √73


find the angle between u=7i+2j and v=-4j


if y is a function of x and x=e^t/(e^t+1) show that dy/dt=x(1-x)dy/dx help me plz


how do you work out what ||u||2 is when you are given u:<-1,7> and v:<6,4>

pre calculus

Can you explain how to find (u • v)(u + v) when u <-1, 7> and v <4, -3>


Find dz/dy for the following : z=(e^xy)+2ycos(xy-1)


Convert to Polar: y/x = 4 A. r = 2 B. r = 16 C. Θ = 76 D. Undefined


How do I find the limit of x/x as x approaches 0?


limx--->0 3sin 3x/4x would it be 9/4


Differentiate each 1. Y= 1/x + 3/x^2 + 2/x^3 2. Y= x^5(1+ x)^5 3. Y= 4-x^2 / 2x+3 Can someone help me I'm lost


M = log(E)-11.4/1.5 How do you express E in terms of M?


What is y=-18x+13 in standard form?


Solve the inequality |5+(2/x)|<1 solution is (-1/2,-1/3).

Pre-Calculus 12

2x^3 - 13x^2 + 32x - 13 = 0


evaluate the integral. from 0 to 4π t^2 sin(2t) dt

Math - Calculus

Compute the sum: 81 ∑ (2i-1) i=1


y=-sin^2 (1/x) find the derivative


Find the anti derivative for 4/(x^2+1)


consider the function f(x) = 9/x^3 -10/x^7 let F(x) be the antiderivatice of f(x) with F(1)=) then F(x)=


reflexive property of ellipse

Pre calculus- help!

find (gof)(x) when f(x) = √x+1 and g(x) = x^2+3/x


let f(x)=1x f(x)=1x and g(x)=x2 +5x.g(x)=x2 +5x. find (f⋅g)(x)(f⋅g)(x) Can someone help me with this I dont know how to do this


A car leaves an intersection traveling west. Its position 5 sec later is 22 ft from the intersection. At the same time, another car leaves the same intersection heading north so that its position 5 sec later is 27 ft from the intersection. If the speed of the cars at that ...


When a doctor dictates a punctuation mark, it is important to _____ transcribe the punctuation mark and not the word dictated check that the punctuation mark is correctly placed and transcribe the punctuation mark and not the word dictated check that the punctuation mark is ...


1)What is the 4x^2=y^2+8y+32 answer= either hyperbola or parabola 2)The graph of which equation is a circle? answer= 5x^2+10x+5y=9 3)Solve the system of equations by graphing x^2+y^2=16 and y= -x+4 answer= (4,0),(0,-4) 4)Find the exact solutions of each system of equations x^2...

college algebra

solve for x 3(x-2)= -4(x+8)+10 my answer to this was -16/7 however I believe the answer is -36/7 did I solve this with the right answer.

College Calculus

The hands of a clock in some tower are 4.5m and 2m in length. How fast is the distance between the tips of the hands changing at 9:00? (Hint: Use the law of cosines) The distance between the tips of the hands is changing at a rate of _______ m/hr at 9:00? I tried several times...

help!!!! i forgot how to do this!!!

A veterans group gave out 1000 small american flags at the 4th of july parade.They paid $355 for the flags.What was the cost of each flag? You need to divide $355 by 1000. Notice that the price for each flag is less than $1.00. If you'd like to post your answer here, we'll be ...

english check answer

To run a four-minute mile, excellent physical condition is important. Phrase fragment Dangling modifier (******) Run-on sentence Misplaced modifier Next ones is underlined words so I put * around them *The dog ate the shoe* that was lying on the closet floor. Noun clause ...

Social Studies 8R - Paragraph Check

Please check my paragraph to see if it's good. If there any detials I should add please let me know. Also please let me know if there any grammar errors. Obama Win When Barack Obama was re-elected I was ecstatic. Obama is a really good president and he deserve to be president ...

language arts

this question is from "The Watsons go to Birmingham- 1963" Read the following quote from Byron to Kenny from Chapter 15. “Today is the day you check out of the World-Famous Watson Pet Hospital. Don’t let me catch you back there no more. You ain’t got no cause to be ...


SPARTAN: Use the information from question #1 to answer the following. A. Which two orbitals from CV+ and –OH will overlap creating the C-O bond in CVOH? ______ (Use i, ii, iv, etc. for your answer) B. Which of the following accurately shows the orbital interaction that ...

Quick chemistry check

Please check each of these mole statements. Correct me if I'm wrong! 1. 59g of hydrochloric acid (HCL)=____moles I got 1.6 moles 2. 4.6 moles of sodium hydroxide (NaOH)=___ grams I got 184 grams 3. 35.0 of sulfuric acid (H2SO4)=__ f.u sulfuric acid I got 2.15x10^25th power ...


There are five questions on the section. These questions are for you to demonstrate your understanding of the steps related to the contents you studied this week. To earn any points in part two, you must show the steps you have used to find the answer in each of the cases: ...


a. An ellipse is formed by stretching the graph of x^2+ y^2=1 horizontally by a factor of 3 and vertically by a factor of 4. Determine the equation of the ellipse in standard form x^2/a^2+y^2/b^2=1 (x/3) ^2+ (y/4) ^2=1 x^2/9 + y^2/16 =1 so the equation is: x^2/9 + y^2/16 =1 b...


The smaller of 2 numbers is 10 less than 4 times the greater number. The bigger number is 19 more than the smaller one. If x is the smaller number one equation is: a)x+y=19 b)x=19-y c)y=x+19 d)x=y+19 I'm almost positive it is d I just want to check. A second equation is: a)x=...


4. You applied for teaching. Would you let us know why you decided to be a teacher? - When I was an elementary school student, my homeroom teacher liked me very much. I also studied hard to please my teacher. So, my future job became teaching at school. I like teaching kids at...

3 grade math ms sue

when lori gave the clerk two $1 bills to pay for items she selected from the list below,she received $0.20 change. pencils: $0.30 each pens: $0.25 each markers: $0.55 each notebook:$1.25 each MY SON SAY WRITE THIS THEN YOU WILL NOW HOW HE HAVE TO DO(WE HAD TO DO RSL RESTATE ...

sra JMcGuin

How would you ask how much the following items cost. Model that tie Cuanto cuesta esa corbata? 1. these socks answer: Cuanto cuesta estos calcetines 2. those pieces of candy answer: Cuanto cuesta esos dulces 3. that board game answer: Cuanto cuesta juego de mesa 4. this skirt ...


The length of a rectangle is decreasing at the rate of 2 cm/sec, while the width w is increasing at the rate of 3 cm/sec. At what rate are the lengths of the diagonals changing at the instant that l=15 cm and w= 8 cm? Are the diagonals increasing or decreasing in length at ...

behavior problems(dogs)

please check my answer thanks You're contacted by the owners of Abbey, a three-year-old spayed Lab mix. Abbey has a history of biting her owners and visitors. The bites usually occur when the victim reaches for the dog. The owners believe that this problem can be fixed by ...


Problem #1 subtract. Express your answer in simplest form (3x)/(18) minus (x)/(18) MY steps: (3x-x)/(18) = (2x)/(18) and answer: (2x)/(18) Problem #18 write in simplest form. (3x^5)/(15x^12) My steps: (3)/(15) = .60 x^5-12 = x^-7 so my answer is: .60x^-7 Problem #21 Add. ...

Math check - Statistics

Can someone (preferably one of the long-term tutors) check my answers: Researchers trap 23 devils, and find that 18 of them are infected. Provide an estimate of disease prevalence. p-hat = (18/23)=0.783 Part II: assuming the same disease prevalence from above. If they trap 2 ...

Calculus Please Help?

A hawk flying at 25 m/s at an altitude of 150 m accidentally drops its prey. The parabolic trajectory of the falling prey is described parametrically by x=25t,y=150−4.9t^2 until it hits the ground. The variable x represents the horizontal distance traveled by the prey ...

Pre Calculus

Two forces with magnitudes of 150 and 75 pounds act on an object at angles of 30° and 150°, respectively. Find the direction and magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer. Having lots of trouble with this...

motion problem (please check)

A 8000N car is traveling 12 m/s along a horizntal road when the brakes are applied. The car skids to a stop in 4.0s. How much kinetic energy does the car have. my work: W= 8000N/9.18m/s mass= 815.49 kg Kinetic energy= (1/2mv^2-1/2mv^2) kinetic energy=1/2 (815.49)(0)^2 - 1/2 (...


3/0 =? the answer is 0 but my options are to solve the equation if possible or say the answer is undefined. Is 0 undefined? I have no clue what an undefined answer is

U.S History - Pls check my answer :)

Document A: It is impossible that the allied powers should extend their political system to any portion of either continent without endangering our peace and happiness; nor can anyone believe that our southern brethren, if left to themselves, would adopt it of their own accord...


A golfer hits a ball from the origin with an initial speed of 35 m/s at an angle of 44 degrees above the horizontal axis. The ball is moving down when it lands on a green that is 3.00 m above the level where it was struck. Neglect air resistance. 1. How long is the ball in the...


A pistol is fired horizontally and the bullet has a muzzle velocity (speed with which the bullet leaves the barrel) of 31.3 m/s. The gun is 50 m above the surrounding terrain. a) How far away does the bullet land measured horizontally from a point directly beneath the gun? You...


Please let me know if i answered these correctly thanks 1.Which property of the real numbers is illustrated by the following statement? 4(3x) = (4 ∙ 3)x answer: distributive property 2. Which property of the real numbers is illustrated by the following statement? 8(c + ...


There's a triangle the numbers on each sides are 22 25 and 11 What is it's perimeter and area? Answer: P is 58 A is 345 There's a rectangle the numbers on 2 of the sides says 4 and 1 What is the Perimeter and area? Answer: P is 10 and A is 4 There's a rectangle the numbers are...

are these correct

Here is the questions it says to simplify: xyy^2 x^3 and here is the answer x^4 y^3 ---------------------------- here is another one m^3 pmxm^2 x^3 p^5 and here is the answer m^6 p^6 x^4 ---------------------------- and here is another one xm^2 xm^3 x^3 m and here is the ...

American Government PLEASE CHECK MY ANSWER!!

6. The constitutional prohibition against laws respecting an establishment of religion must at least mean that, in this country, it is no part of the business of government to compose official prayers for any group of the American people to recite as part of a religious ...

Behavior problems (dogs)

Please check my answer thanks A prospective client phones about her dog's behavior problem. When they go for a walk, the dog starts out walking nicely, until it finds an interesting scent. Then the dog stops and refuses to budge. She's a large dog, and the owner has tried ...

Calculus - Rate of Change

Can someone explain how to solve this problem? Sand is being dumped on a conveyor belt onto a pile in such a way that the pile forms in the shape of a cone whose radius is always equal to its height. Assuming that the sand is being dumped at a rate of 10 cubic feet per minute...

Math -- Calculus

Some years from now you are working for a book publisher. Your boss asks you to give him a formula that will tell him the length and width of a book page that contains A square inches of printed text, a left margin of L inches, a right margin of R inches, a top margin of T ...

math---help! connections academy! check my answers

pls help asap! check my answers: In the diagram, lines m and n are parallel. If m¡Ð2 = 150¡Æ, find the measure of the following angles. 1. ¡Ð4 = ? (1 point) 120¨¬ 50¨¬ 30¨¬ 150¨¬ 2. ¡Ð6 = (1 point) 150¨¬ 130¨¬ 15¨¬ 30¨¬ 3. ¡Ð8 = (1 point) 30¨¬ 132...


A 6090kg space probe mobing nose-first toward Jupiter at 105m/s relative to the Sun, fires its rocket engine ejecting 80 kg of exhaust at a speed of 253 m/s relative to the space probe. What is the final velocity of the probe? I should have gotten 108m/s Can you show me the ...

Math/Standard and scientific notation

Express each measure in standard form. (One more thing by the way you need this few prefixes) Tera= 10 to the 12th power Giga= 10 to the 9th power Mega= 10 to the 6th power Kilo= 10 to the 3rd power Pico= 10 to the -12th power Nano= 10 to the -9th power Micro= 10 to the -6th ...

Math please check

Does 0.21 * 0.05 = 0.0105? * means multiply. Yes.


can someone check my work? x^2 = 22 xãx-22 if x^2 is 22, then x is +- sqrt 22

pre algebra 2

how do you make a guess and check table?

simple math check

(1/2)(3x^2+5x+3)^(-1/2)(6x+5) when you plug in 5 for x.. do you get 1.72 because that what i get and then it says im wrong.

Math (Check problem

Subtract and Simpfly 2) 2/3 - 1/2 my answear: 1/6

Check Work (Math)

1) Find the difference 3-(4-7) my answear 6


ok and for this other question could you check my work please! h t t p : / /i 3 4 . t i n y p i c . c o m / s 2 z h m v . j p g

Math 115

8/26=m/13 104/26 m=4 Check this problem please


How does the goverment know how much to with hold from your employment check?


Factor (m + 4) (a – 5) + (m + 4) (a + 3) I am pretty sure its this but want to double check! Thanks! (m + 4) (a^2 – 2)

To: SraJMcGin

I posted an assignment for you to check at 4:51 today just to let you know.

Axia Collage

Grammar Exercise 2 check my anwers

pre algebra

solve and check the following equation: 6(g-6)=5g-2-g

11th grade

how to check specific heat of a substance?


solve and check solution 12x=11x-5


Solve the following equations algebraically and check. y=2x^2+2x+3 y=x+3

math please

Solve 3^2x + 3^x - 21 check extraneous roots

To: Drwls

can you please check my previous science post, thanks

intermediate algebra

3/10=5/x 3x=15 x=5 could some check this for me rational expression


Mutilpy rational expression 3/a^2+a*2a+2/6=3/a(a+1)*2(a+1)=1a could someone check this for me.

Alg 2 Check Please!!!

1) 8^2y = 52^4y+3 2) 2^3(2y) = 2^26(4y+3) 3) 6y = 104y+78 4) -98y = 78 5) y= -0.796


Hi could you check my sentences to see if their right?

pre algebra

How do tou check and solve the equation -5w+2w+6w=-4+9?


Does anyone on here use Writepoint to check your work??


factor by grouping if possible and check 5x^3+4x^2-10x-8


solve the equation. check the solution 5 x g -5 = 100

math rational comparing #'s

can you check: < > = -2/9 > -4/9 -1/6 > -2/3 -5/12 > - 3/4 -1 < - 1/3 -5/6 = -10/12 -1/8 > - 1/2 -1.2 > -2.1 -0.6 < -0.52 -1.23 < -1.25 -0.53 < -5.333 -3 1/4 = -3.25 -4 2/5 < -4.12 are these right?

Alg 2

Solve the equation. Check for extraneous solutions. ln x + ln(x-2) = 1

Math(Please check)

(0.50M)(3.50mL) = c2(75.00) c2= 2.3e-2 Is this correct?


Solve. Check for extraneous solution. 6x= √20+6x


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