Calculus (Answer Check)
88,560 results, page 85

Calculus
I don't get how you get this part: f' = (1x)/(1+x)^3 f" = [(1)(x+1)^3  3(1x)(x+1)^2]/(x+1)^6 = [(x+1)+3(x1)]/(x+1)^4 ( I don't understand how you got this!!) = (x1+3x3)/(x+1)^4 = (2x4)/(x+1)^4 
college precalculus
if 11/x=22/x, then 33/x=? A. 3 B. 1/3 C. 0 D. 1/3 E. 3 idek how to do it? 
PreCalculus
find the inverse of g(x)=(x+7)^3+4 
Calculus
Solve the differential equation f"(x)=x^2, f'(0)=3, f(0)=1 
calculus
integral sqrt(1x^2) . sin^1 x dx 
Calculus
Integration with substitution The integral of f'(g(5x))g'(5x)dx 
Calculus
The integral of sin(7x)cos(7x)dx 
Calculus
would the derivative of f(x)=(7^x)(x^7) be f'(x)=(7^x ln7) (7x^6)? 
Calculus
Evaluate: the integral from pi/8 to pi/6 csc2xcot2xdx 
calculus
If u=(0,2,3) and v=(1,3,1) find the projection of u onto v a) 1/3 u b) 3/11 v> > c) (1,1,1) d) (1/3, 1, 1/3) 
calculus
cos2x=secx find x 
Calculus 1
How do you find the derivative of 1/3(x^2+2)^3/2 ? Please help 
Calculus
Evaluate dy/dt for 2xy2x+2y^3=10 with the conditions dx/dt=4 x=2 y=1 dy/dt=? 
calculus(urgent pls)
Integral of 1/[x^2(1+x^2)] 
Calculus
f(x)=xe^x^2. What interval is this function increasing. 
Calculus
How do the constants 5, 4, and 12 in f(x) = 5x^2  4x + 12, affect the derivative? Thanks! 
Calculus AB
Find the limit as x>infinity of ((3x+2)/(3x+4))^(3x+1) 
calculus
what is the range for the function j(x)=5+sqrt of 2x 
Calculus
Differentiate each function with respect to x: F(x)=x/(x+1)^1/2 
Calculus 1
Differentiate. f(x)=5sqrt(x)sinx 
Calculus
What does it mean when the limit of f(c) doesn't exist? 
Calculus 1
Find the derivative of the function. y=(e^3u e^3u)/(e^3u+e^3u) 
differential calculus
differentiate g(t)=3/sqrt(t) 
Multivariable calculus
Find dy/dx x=te^t y=t+sint 
calculus
If f(x) = 5ex cos x, find f '(x) and f ''(x). 
Calculus
Calculate the approximation. L4, f(x)=cos^2 x , [pi/6, pi/2] 
Calculus
Find c so y=4x+3 is tangent to the curve y=x^2+c 
Math 142 (calculus)
Determine d^2y/dx^2 for y=(5x^5+7)^4 
Calculus
Find the limit as x>infinity of (1+8/x)^x 
Calculus
Evaluate the integral. cot3(4x) dx 
Calculus
Calculate integral [0, infinity) xe^(x) dx 
Calculus
Given dy/dt=4y and y(2)=400. Find y(7). 
Calculus
Find the derivative of f(x)=(2x)^(1/2)ln(15x) 
calculus
Find the critical numbers x1 and x2 of y=(9x^2+3)/4x. 
Calculus pz help urgently
Integrate:sinxcos(x1/4.pi)dx 
Calculus
How do you use usubstitution with 20sin(x^2/35)? 
Calculus
Find the implicit differentiation for each. 1) x^2 = (xy) / (x+y) 2) (x+y)^3 + (xy)^3 = x^4 + y^4 
Calculus Plz Help
If f(x)=x^4, compute f(2) and f'(2) f(2)=___ < ? 
PreCalculus
What are the holes of the function f(x) = (x^2 + 3x  4)/(x^2 + 9x + 20)? 
High school calculus
Calculate y when dy/dx = 1/(bx+5)^3 
calculus
area between the curves y^2=4x , 7y=2x+20 , 2x+3y=0 
Calculus (easy)
What is the polar form of (22i)? 
Calculus
Need help with a few questions 
Calculus
solve the equation y'=(sqrt(x))/2y 
Calculus
when x intercept 3, point P(2,5,7) and Q(1,10,14) how to find x,y and z? 
PreCalculus
How do I find the domain of K(x) = x(32  2x)^2? 
Calculus
lim (x> infinidy) x^2/ln(x)= 1 0 1 e does not exist 
Calculus
Find F'(x) for F(x)= integral[from 1 to x] of cos(t^3)dt 
Calculus
lim x>0 ((73x^5+x^2sinx)/(5cosx)) 
Calculus
Differentiate with respect to x 1/sin x 
Calculus 1
Find the limit. lim x>0 (e^(6/x)+8x)^(x/2) 
calculus
Find lim as (x,y) goes to (0,0) of (e^(x^2y^2)1)/(x^2+y^2). 
calculus
find the inverse of the matrix. [ 16 1 ] 1 16 
Integrals calculus
7/x^28 does it give you 7ln(x^28) 
calculus
Locate the discontinuities of the function y=(5)/(3+e^(1/x)) 
calculus
lim f(x)=? x>3 f(x); 3.7, 3.97, 3.997, 3.9997, ? 
Calculus
Find the slope of x^216xy+y^2=1 at (1,1). Is this 1? 
Calculus
Find dy/dx at the point (3, 1) for the equation x = y^39x^2+5. 
Calculus
Find the dot product of: <1, 7> and <2, ¾>. 
PreCalculus
Given: u <1, 7> and v <4, 3> Find: (u • v)(u + v) 
PreCalculus
What is the absolute value of: 3  8i? A. 9 B. 64 C. √55 D. √73 
Calculus
find the angle between u=7i+2j and v=4j 
calculus
if y is a function of x and x=e^t/(e^t+1) show that dy/dt=x(1x)dy/dx help me plz 
calculus
how do you work out what u2 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> 
Calculus
Find dz/dy for the following : z=(e^xy)+2ycos(xy1) 
Calculus
Convert to Polar: y/x = 4 A. r = 2 B. r = 16 C. Θ = 76 D. Undefined 
Calculus
How do I find the limit of x/x as x approaches 0? 
calculus
limx>0 3sin 3x/4x would it be 9/4 
Calculus
Differentiate each 1. Y= 1/x + 3/x^2 + 2/x^3 2. Y= x^5(1+ x)^5 3. Y= 4x^2 / 2x+3 Can someone help me I'm lost 
Calculus
M = log(E)11.4/1.5 How do you express E in terms of M? 
Calculus
What is y=18x+13 in standard form? 
Calculus
Solve the inequality 5+(2/x)<1 solution is (1/2,1/3). 
PreCalculus 12
2x^3  13x^2 + 32x  13 = 0 
calculus
evaluate the integral. from 0 to 4π t^2 sin(2t) dt 
Math  Calculus
Compute the sum: 81 ∑ (2i1) i=1 
calculus
y=sin^2 (1/x) find the derivative 
Calculus
Find the anti derivative for 4/(x^2+1) 
Calculus
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)= 
Calculus
reflexive property of ellipse 
Pre calculus help!
find (gof)(x) when f(x) = √x+1 and g(x) = x^2+3/x 
Calculus
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 
Hellpppp calculus
Solve by elimination. 0.1x + 0.3y = 1.5 0.6y + 0.2x =1.2 
Calculus
Given dy/dt=4y and y(2)=450. Find y(8). 
AP Calculus AB
Suppose f(x)= x^5  10 and let h(x) be the inverse of f. Find h'(22). 
AP Calculus
Find x. lim (sin(x))^x x>0 
Calculus
What is the Taylor series generated by g(x) = x^32x+2 at a=5? 
Calculus
Find dy/dx for implicit differentiation y^2xy+x^2=7 
Calculus
Find f. f ''(x) = −2 + 12x − 12x2, f(0) = 9, f '(0) = 14 
Calculus
Find f. f ''(θ) = sin(θ) + cos(θ), f(0) = 4, f '(0) = 2 
Science  Please Check My Answers
Please help me with the following: Which is usually the best way to present or communicate inferred data? A. in a bar graph B. in a data table C. in a simple diagram D. in a written paragraph I know the answer isn't C or D(I got C wrong), but now I think the answer is B. Is ... 
Calculus 1
Water is leaking out of an inverted conical tank at a rate of 9,500 cm^3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 m and the diameter at the top is 4 m. If the water level is rising at a rate of 20 cm/min when the ... 
Physics  Inelastic Collision ( check + help)
A billiard ball of mass 0.55kg moves with a velocity of 12.5m/s towards a stationary billiard ball of the identical mass and strikes it with a glancing blow. The first billiard ball moves of at an angle of 29.7deg clockwise from its original direction, with a velocity of 9.56m... 
Chemistry
calories given off when 85g of water cools from 48C to 23C. Express your answer using two significant figures. I know the answer is 2100 cal, but I just need to know why the answer is a positive value instead of negative, when it is supposed to be cooling down. 
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 ... 
Sounds
Seriously, I would love to know the answer to this question, will someone please answer it!!! What is quick backandforth motions repeated over and over? That wasn't a answer, I NEED AN ANSWER!!! wave? Pressure wave? Sound wave? Transverse wave? I think they're thinking of ... 
French
Could you check these thanks. Part 1: Directions: Ask questions in 2 other ways by replacing the underlined words with où, d'où, comment, qui, avec qui, quand, à quelle heure, combien de, pourquoi, quoi/que/qu'estce que. (Note: UNDERLINED WORDS WILL BE IN PARENTHESIS) 1. ... 
Calculus
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 ... 
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 fourminute mile, excellent physical condition is important. Phrase fragment Dangling modifier (******) Runon 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 ...