# hey guys, i follow you up to the point of intergrating the final line. How would I intergrate [x^-2.e^-x] dx thx

49,088 questions, page 83
1. ## Math

By how many degrees Fahrenheit do the frezzing point and the boiling point of water differ?

asked by Samantha on October 7, 2008
2. ## calculus

suppose f(x) is a function such that f(3)=5, f'(3)=0, and f''(3)=3. Is the point (3, 5) a relative maximum, minimum or inflection point?

asked by Elizabeth on October 15, 2012
3. ## college

if the block weighs 855 newtons, what is the tension in the cable going from point A to point C

asked by Jennifer on November 9, 2009
4. ## math

Under the translation (x, y) --> (x + 3, y + 4), the point (1, 7) will become what point? Be sure to enter your answer in (x, y) notation, with parenthesis and no spaces.

asked by BreAnna on May 13, 2011
5. ## math

Suppose a vector v has initial point (4, -3) and terminal point (8, -1). Find the magnitude of v

asked by Anonymous on March 17, 2016
6. ## Calculus 1

Hi! Can I get some help with this questions. I am very confused about how to approach it. Find the point on the curve y=5x+4 closest to the point (0,6). Thank you!

asked by Claudia on March 29, 2018
7. ## algebra

Determine whether the point 1.8 is a solution of the system. Subitute the point of each equation. 2x+6y=50 10x+0y=10

asked by diane on May 11, 2011
8. ## math

If I have seven bridges in a town can I start at point A and only cross each bridge once and still return to point A?

asked by Anonymous on August 16, 2009
9. ## math

point p and q are respectively 24m north and 7m east of point r.what is the bearing of q and p to the nearest whole number

asked by smile on April 21, 2014
10. ## Calculus

Find the first partial derivatives and evaluate each at the given point. Function w = sqrt(5x^2 + y^2 − 4z^2) Point (2, −4, 2) wx(2, −4, 2) = wy(2, −4, 2) = wz(2, −4, 2) =

asked by Calculus Help on November 17, 2015
11. ## chemestry

true or false the equivalence point is the point at which a neutraliztion reaction has occured

asked by chyanne on April 7, 2011
12. ## physics

a point charge placed at the origin. Calculate eletric field at a point 2.0m from the Z axis.

asked by alisha ahmed on October 30, 2016
13. ## calculus1

Find the arc length of the graph of the equation y+1/4x+x^3/3=0 from the point(2,67/24) to point(3,102/12) help me with this thanx!

asked by karen on June 11, 2015
14. ## chemistry

Calculate the freezing point and boiling point of 12.0g of glucose (C6H12O6) in 50.0g H20

asked by Laverne on February 10, 2010
15. ## calculus1

Find the arc length of the graph of the equation y+1/4x+x^3/3=0 from the point(2,67/24) to point(3,102/12) help me with this thanx!

asked by karen on June 10, 2015
16. ## physics

Three point charges +q are placed at corners of a square with sides of length L. + + + A B L O What is the potential at point A?

asked by Anonymous on April 11, 2013
17. ## MATH AND SCIENCE

to get from point a to point b it take 644 miles you travel this distance in 2 hours what is your velocity

asked by 01001010 01110101 01110011 01110100 01101001 01100011 01100101 on February 12, 2019
18. ## Math

Kevin will place point k at (1,2 1/2) on the grid below. Point k will be inside which type of triangle

asked by Suman on April 20, 2017
19. ## Geometry

Find the distance between point R (5,6) and point S (-2,0). Round your answer to the nearest tenth.

asked by Crystal on September 25, 2011
20. ## Calculus

Find the length of the arc formed by x^2=9y^3 from point A to point B, where A=(0,0) and B=(81,9) Please help, I have no clue as to where to go with this problem! Thanks!

asked by Anonymous on March 2, 2013
21. ## math

Find the general form of the equation of the circle. Center at the point (-4,-3); containing the point (-3,3) a) x^2+y^2+8x+6y-12=0 b) x^2+y^2+4x-6y+22=0 c) x^2+y^2-4x+6y+22=0 d) x^2+y^2+4x-6y+4=0

asked by you on October 4, 2007
22. ## physics

A utube manometer contains mercury of density 13,600 kg/m3. One end of the manometer is open to the atmosphere and the other end is connected to a low pressure natural gas line. A height difference of 11.8 cm results between the levels of the two liquid

asked by Anonymous on December 5, 2017
23. ## maths --plse help me..

how to find the cartesian eqn of plane passing through A(0,0,0) and B(3,-1,2) and parellel to line (x-4)/1 = (y+3)/-4 = (z+1)/7 basically how to find a plane parallel to a given line??

asked by Anonymous on December 28, 2012
24. ## calculus I

Find the tangent line approximation to 1/x when x=1 How do i find tangent line approximations??? my prof hasn't gone over this and i don't understand how to do it.

asked by Rob on October 19, 2008
25. ## Math

What words have a horizontal line of symmetry when printed horizontally, and a vertical line of symmetry when printed vertically. The only word I have is HI.

asked by Sara on February 4, 2010
26. ## maths

Angle AOP is an acute angle .circle (O, OP ) is passing from A on the circle. Line l touches at A. N is perpendicular on line l from P. If AN =15 PN =9 then radius=-----

asked by sanjay on March 11, 2017
27. ## Maths-Calculus

If f(2)=1 and f(2+h)=(h+1)3, compute f′(2). If f(−1)=5 and f(−0.9)=5.2, estimate f′(−1). If the line y=−3x+2 is tangent to f(x) at x=−4, find f(−4). Your answer should be expressed as an integer. If the line y=x−1 is tangent to the graph

asked by Phy on September 10, 2013
28. ## Lit

From "The Naming of Cats" "But the cat himself knows and will never confess" is an example of: I know it's either personification or parallelism The line comes from the stanza that is parallelism but if I'm only looking at this line it is then classed as

asked by Jon on August 9, 2008
29. ## geometry

line AB is parallel to line CD, the measurement of angle A=2x-25, and the measurement of angle C=x+5. find the value of x. show work and explain your reasoning.

asked by joseph on October 29, 2011
30. ## Math

What words have a horizontal line of symmetry when printed horizontally, and a vertical line of symmetry when printed vertically. The only word I have is HI.

asked by Sara on February 5, 2010
31. ## Pre-Calculus

1) j(x)=-2/3x what is j(x)'s y-intercept? answer: (0,0) 2) k(x)=4 what is k(x)'s slope? answer: 0 3) g(x)=2x-5 what are the root(s) of g(x)? 4) the slope of line p if p is perpendicular to line f are the answers i provided correct? and please help me on 3

asked by Sam on September 1, 2015
32. ## Calculus

Determine the equation of the tangent line at the indicated -coordinate. f(x) = e^(-0.4x) * ln(18x) for x= 3 The equation of the tangent line in slope-intercept form is

asked by Zoey on November 2, 2014
33. ## math

Planets A, B and C orbit a certain star once every 3, 7, and 18 months respectively. If the three planets are now in the same straight line, what is the smallest number of months that must pass before they line up again?

asked by dan on July 29, 2012
34. ## math

Use linear approximation, i.e. the tangent line, to approximate ((125.1)^(1/3)) as follows: Let f (x)=((x)^(1/3)). The equation of the tangent line to f(x) at x = 125 can be written in the form y = mx+b where m = b =

asked by bobby on March 28, 2012
35. ## Calculus

Use linear approximation, i.e. the tangent line, to approximate 8.4^(1/3) as follows: Let f(x)= x^(1/3) . The equation of the tangent line to f(x) at x=8 can be written in the form y=mx+c where m=1/12 and c=4/3: Using this, find our approximation for

asked by Salman on November 15, 2009
36. ## Math

Use linear approximation, i.e. the tangent line, to approximate 1.6^3 as follows: Let f(x) = x ^3. The equation of the tangent line to f(x) at x = 2 can be written as y=12x-16 Using this, we find our approximation for 1.6 ^3 is ???????

asked by Salman on November 7, 2009
37. ## Geometry

1. Why do you think that the slope of a vertical line is called "undefined?" 2. Can you find the equation of a line if you are given the slope and the x-intercept? If so, explain how. If not, explain why you can't.

asked by Unknown on September 3, 2013
38. ## Maths

A football pitch is 95m by 65m. A white line is marked out around the whole perimeter of the pitch. How long is the white line?

asked by chris.k on January 29, 2018
39. ## MATH plz helo check my answer

-3 ≤ 2x - 5 < 13 i thing the answer is 1 < x < 9 and how would you graph this on a number line so MY NUMBER LINE IS 1 TO 9, SO AT 1 i have a closed circle and at 9 i have a open circle and its shaded in is it right

asked by lisa on January 2, 2012
40. ## math

Planets A, B and C orbit a certain star once every 3, 7, and 18 months respectively. If the three planets are now in the same straight line, what is the smallest number of months that must pass before they line up again?

asked by ediget on August 12, 2015
41. ## Calc

Let f(x) = x^2 -2x a) Estimate f'(3) using h = 0.03 b) Find the exact value for f'(3) c) Give the equation of the tangent line to f(x) at x=3 d) Use the tangent line to estimate f(2.98) e) Critical points

asked by Maura on May 13, 2014
42. ## Calculus

Use linear approximation, i.e. the tangent line, to approximate 8.4^(1/3) as follows: Let f(x)= x^(1/3) . The equation of the tangent line to f(x) at x=8 can be written in the form y=mx+c where m=1/12 and c=4/3: Using this, find our approximation for

asked by Ben on November 15, 2009
43. ## Algebra 1

1. Find the slope of a line that passes through (–2, –3), and (1, 1). A. 1/3 B. 1 C. 2 D. 4/3** 2. For the equation –4y = 8x, what is the constant of variation? A. -4 B. -2** C. 1 D. 2 3. What is an equation for the line with slope and y-intercept 9?

asked by Anonymous on February 21, 2017
44. ## Physics

A loop-the-loop ride at an amusement park has a radius of 5 m. At the highest point, the rider moves at 8 m/s. At the lowest point the rider moves at 13 m/s. Find what you would feel like you weigh at those points. (This force represents the force of the

asked by Jennifer on December 6, 2010
45. ## math

In October, a HARDWARE STORE purchased snow shovels for \$8 each. The original markup was 50% based on the selling price. In December, the store had a sale and marked down the shovels by 20%. By January 1, the sale was over and the shovels were marked up

asked by Tammy on August 25, 2014
46. ## percentages/word problem

18) In October, a hardware store purchased snow shovels for \$8 each. The original markup was 50% based on the selling price. In December, the store had a sale and marked down the shovels by 20%. By January 1, the sale was over and the shovels were marked

asked by Anthony on April 3, 2014
47. ## math

In October, a hardware store purchased snow shovels for \$8 each. The original markup was 50% based on the selling price. In December, the store had a sale and marked down the shovels by 20%. By January 1, the sale was over and the shovels were marked up

asked by Anonymous on March 1, 2014
48. ## chemistry Ben

50ml of 20.8% bacl2 and 100ml of 9.8% h2s04 solutions are mixed. molarity of cl ions in the resulting solutions is At.wt of ba = 137 100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of

asked by Ken on November 16, 2014
49. ## chemistry step by step for me

100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of h2s04 solution if final density is 1.25g/ml. 50ml of 20.8% bacl2 and 100ml of 938% h2s04 solutions are mixed. Molarity of cl ions in

asked by Ken on November 16, 2014

In October, a hardware store purchased snow shovels for \$8 each. The original markup was 50% based on the selling price. In December the store had a sale and marked down the shovels by 20%. By January 1, the sale was over and the shovels were marked up to

asked by Joan on September 5, 2014
51. ## rela 10H

requirenment for essay: Attention-grabber: Relevant quotation Create imagery to evoke imagination Fragment & general discussion Hypothetical question Who/what/when/where/why/how the mystery began (why is it mysterious?) Ask the question from the list of

asked by anonymous on March 28, 2015
52. ## Health (Ms. Sue)

Is my answer correct? List the steps you should follow to help an individual who appears to have been poisoned. A: To help an individual who appears to have been poisoned, you must follow the steps below: 1. Seek medical assistance immediately. 2. Contact

asked by Anonymous on January 6, 2014
53. ## physics

An object with mass 110 kg moved in outer space. When it was at location < 11, -35, -7 > its speed was 17.5 m/s. A single constant force < 230, 420, -230 > N acted on the object while the object moved to location < 16, -41, -13 > m. What is the speed of

asked by samantha on July 5, 2014
54. ## Poem

In my dreams, creeps up a guy, Mysterious he is, as I know him not. He smiles and I gaze-with a heartfelt/heavy? sigh, Daydreaming often of a true love knot. Earlier I posted this poem up and writeacher told me to change the second line. I still can't find

asked by mysterychicken on May 27, 2009
55. ## physics

we had to watch an animation which showed two balls, each traveling on a straight horizontal line at different speeds. the graph of position vs time and velocity vs time are given. The red ball has a linear graph and the coordinates are (0,0), (1,5),

asked by sam on May 28, 2009
56. ## physics

we had to watch an animation which showed two balls, each traveling on a straight horizontal line at different speeds. the graph of position vs time and velocity vs time are given. The red ball has a linear graph and the coordinates are (0,0), (1,5),

asked by sam on May 29, 2009
57. ## chemistry

if initial pressure is 5 atm, initial volume is 6 liter what will be final pressure in atm when final volume is 10 lit?

asked by Anonymous on March 5, 2012
58. ## History

Hey, I have to write an essay tommorow on the high and low points of George Washington and John Adams? I have a ton of other homework and don't have time to think. PLEASE don't write the essay just give me the main points.

asked by kinz on January 20, 2008
59. ## science

calculate the work done in moving a mass of 50 kg from one point to another point if the gravitational potential diffrence between these two points is 2*10^3j/kg

asked by Tara psd on May 19, 2017
60. ## physic

How do I find the magnitude of the displacement between the two points. It start at point(0,2.024) and end at point(19.26,1.210)

asked by joy on January 26, 2018

If you add 23.5g of NaCl to 1.2 kg of water, what will be the boiling point and the freezing point of the new solution? (Kf=1.86, Kb=0.52) (Please show work, I appreciate everything)

asked by Jasmin on November 10, 2010
62. ## Calculus

Find dy/dx at the point (-3, 1) for the equation x = y^3-9y^2+5. A. -1/17 B. -1/13 C. -1/15 D. 1/17 E. 1/15 I posted this question before with a typo, but the point still doesn't appear to be on the graph of the function.

asked by Anonymous on November 1, 2016
63. ## trig

if point P is a point on the terminal side of 0, and 0 is in standard position, find sin 0,cos 0 and tan 0. 1. P(-6,8) 2. P (1,3) 3. P (-2,-40), 4. P (-5, -12)

asked by shawn on May 14, 2011
64. ## calculus

Find the point(s) on the curve y=x^2 that is/are closest to the point (0,3). If you use your calculator to do this (instead of taking a derivative), Sketch the graph that you use.

asked by kelly on January 22, 2017
65. ## Math

The point C (x,y) is reflected over the x-axis. Write a translation rule to describe the original point and its reflection. (x,y) ---> (x,2y) (x,y) ---> (-x,y) (x,y) ---> (-x,-y) (x,y) ---> (x,-y)

asked by HELP! on December 1, 2016
66. ## Geomtry

Five fences meet at a point to form angles with measures x, 2x, 3x, 4x, and 5x around the point. Find the measure of each angle.

asked by Timothy on December 11, 2011
67. ## physics

The potential energy at point D at x = 8 m is -2000 V and at point B at x = 2 m is +400 V. What is the magnitude and direction of the electric field?

asked by Alex on February 9, 2011
68. ## algebra

Hi thanks for helping me my question is simple but could you check my answer and help me explain it? 3.3 = x - 4.6 three point three equals x minus four point six. Thanks :)

asked by HHHHHHEEEEEELLLLPPP MMMMEEEE on October 26, 2018
69. ## Math

A plane leaves point A and flies S80° E to point B400 km away. How far east of A is B (to the nearest kilometer)?

asked by Vincent on April 6, 2013
70. ## math

The distance between the pivot point and the marking point of a compass when drawing a circle - my answer is the radius. Is this right?

asked by Reed on September 22, 2011
71. ## ALG> and graphs

I have no idea how to do this Find the equation of the circle that passes through the point P(8, -2) and whose center is the point C(4, 1). Then sketch its graph

asked by ??MATH?? on April 23, 2014
72. ## True/False

A function is continuous at a point if its limit exists at that point. I think it's false because of the counterexample of one-sided limits?

asked by Marcus on March 13, 2013
73. ## narayana junior college,physics

a point charge q=-8.0nC is located at origin . find electric field vector at point x=1.2m,y=-1.6m

asked by B.Y.SARAT on March 31, 2012
74. ## calculus

My teacher told me to use the distance formula for this problem but I am not sure how to do it... find the point (s) on the graph of y^2=6x closest to the point (5,0)

asked by Anonymous on July 6, 2012

Two point charges 2uC and 8uC are placed 12 cm apart. Find the position of the point where electric field resultant will be zero

asked by Ibrahim on March 8, 2016
76. ## Physics

A 55 uC point charge is at the origin. Find the electric field at the point x1 = 60 cm,y1 = 0cm . I have no idea where to start can someone help me?

77. ## physics

Two point charges Q1= -25uC and Q2= 50uC are separated by a distsance of 12cm the electric field at the point P is zero how far from Q1 is P?

asked by Anonymous on August 31, 2011
78. ## physic

The angular position of a point on the rim of a 45.8 cm rotating wheel is given by θ(t) = 3.6 t2 − 2.8 t +7.5, What is the instantaneous speed v of the point at time t = 6.5 s?

asked by annie on September 20, 2010
79. ## calculus

Find the cubic function of the form y=ax^3 + bx^2 + cx + d which has a relative maximum point at (0,2) and a point of inflection at (-1,-2). How do I even start this one?

asked by Anonymous on October 17, 2011
80. ## Math

The distance between the point in my center and any point on my outline is equal. What am I? a.Triangle b.Octagon c.Circle d.Square

asked by Tracy on January 14, 2011
81. ## Physics

The cartesian coordinates of a point in the xy plane are x = −8.09 m, y = −4.3 m. Find the distance r from the point to the origin. Answer in units of m.

asked by Lucas G on September 12, 2018
82. ## math

The point (5, -7) is dilated by a scale factor of 4 about the origin. Find the location of the new point. Show your work.

asked by bre on March 27, 2013
83. ## Chemistry

What is the (a) molality, (b) freezing point, and (c) boiling point of a solution containing 2.29 g napthalene (C10H8) in 44.6 g of benzene (C6H6)?

asked by C on April 19, 2013
84. ## COORDINATE GEOMETRY

A RAY OF LIGHT ORIGINATES FROM A(1,2) AFTER REFLECTION ON X-AXIS AT POINT A REFLECTED AT POINT Q(5,3). FIND COORDINATE OF A

asked by ASHMITA on September 6, 2014
85. ## NARAYANA

a point charge q=-8.0nC is located at origin . find electric field vector at point x=1.2m,y=-1.6m

asked by B.Y.SARAT on March 31, 2012
86. ## math

The point C(x,y)is reflected over the x-axis. Use arrow notation to describe the original point and its reflection. a)(x,y)-> (x,2y) b)(x,y)-> (-x,y) c)(x,y)-> (-x,-y) d)(x,y)-> (X,-Y) Would the answer be D

asked by gwen on May 18, 2014
87. ## Geometery help"Steve"

The point Q(x,y) is reflected in the origin. Use arrow notation to describe the original point and its reflection. I chose this: (x,y) to (x,y) Am I right?

asked by Kristin on April 25, 2014
88. ## Physics

Two point charge of +16 and -9 are placed 8cm apart in air.determine the position of the point at which the resultant electric field is zero.

asked by Shailendra on April 28, 2017
89. ## pre-calculas

can someone please help me with this question? Given the function f(x)=3x-9 Find the rate of the change between the stated values for x: 7 to 8 A. Find the equation of a secant line containg the given point (7,f,(7)) and (8,f,8)) B. Find the rate of change

90. ## Math

Determine whether the following statements are always,sometime, or never true.Explain 1.Three points determine a plane. 2.The intersection of two planes can be a point. 1.Never true, the three points must be noncollinear. 2.Never true, the intersection of

91. ## Physics

A point charge with a charge q1 = 3.80 μC is held stationary at the origin. A second point charge with a charge q2 = -4.10 μC moves from the point x= 0.140 m , y=0 to the point x= 0.240 m , y= 0.240 m. How much work is done by the electric force on q2? I

asked by Stesson on January 30, 2018
92. ## Physics

In DESPERATE NEED OF HELP!!! An object of mass m = 10 kg and speed v = 2 m/s collides head on with a second object of mass m = 5 kg which has a speed v = 1 m/s. The objects stick together. There are no external forces on the two objects (note the given

asked by Carl on November 10, 2016
93. ## Music

So I am doing an essay and I wanted to know the lyrics to Am I Born To Die by Tim Erikson, it is in the 2003 movie Cold Mountain. I cannot follow links, so if you could copy and paste the lyrics, I would appreciate it.

asked by imissbobby♥ on April 28, 2014
94. ## math

The HR department of an organization collects data on employees¿ age, salary, level of education, gender, and ethnicity. Which data do you think is more likely to follow normal distribution? Explain why.

asked by judy wiggens on June 26, 2013
95. ## Business Communications - English 101

Should the sentence containing the word three be 3 instead. The rules states to use numbers that follow an identifying noun. I don't quite understand if "these" is considered identifying but I believe two or three should be written in words. If I should

asked by MaryBeth on July 12, 2013
96. ## la

The title "two kinds" refers to the statement by the mother that there are only two kinds of daughters "those who are obedient and those who follow their own mind" (i dont feel like writing the rest of the question but if you know the answer then please

asked by thepersonwhoneedshelp on October 28, 2018
97. ## To Jessie - re English

Read and follow the directions I have already posted for you. Those are your first steps. http://www.jiskha.com/display.cgi?id=1313664789 No one can help you until you do those things, and continuing to repost the same things will not change anything.

asked by Writeacher on August 18, 2011

Learning activities currently used- exploring the web resources read widely accept feedback Leaning activities that needs improvement- reshape ideas follow intution

asked by betty on September 26, 2010
99. ## English - Caesura and Enjambment

O Rose thou art sick the invisible worm. that flies in the night in the howling storm: has found out they bed of crimson joy: and his dark secret love does thy life destroy. Is it correct to identify "in the howling strom:" and "of crimson joy:" a caesura

asked by *** on February 12, 2008
100. ## Pre-Algebra

Please let me know if I figured these out correctly. Directions: For the line with the given equation, find the slope of a parallel line and the slope of a perpendicular line. 1)y=6/5x + 144 slope of parallel: 6/5 slope of perpendicular: -5/6 2)4y-4x=16

asked by Kate on January 30, 2012