# Short answer find the quotient 6x^3-x^2-7x-9 ------------ 2x+3

143,010 questions, page 879
1. ## math

A boat is travelling south at a rate of 18 km/h. A man walks across the deck from east to west at a rate of 16 km/h. Find the magnitude and direction of his velocity.

asked by Kelly on March 9, 2015
2. ## Mathematics

let 5a+12b and 12a+5b be the sides length of a right-angled triangle and let 13a+kb be the hypotenuse,l where a,b and k are positive integers. find the smallest possible value of k and the smallest values of a and b for that k.

asked by Utah on July 30, 2015
3. ## MATH

A straight pipe carried water from reservoir(R) to a tap(T) and T are 2km a part horizontally and R 500m above the level.find lenght of the pipe.

A) What is the intensity of sound at 148 dB? Units: W/m^2. I found this to be 630.9573445 using Io*10^B/10 in which B= 148 dB. B)Compare it to that of a whisper at 20 dB. Using the same formula i find this to be 1e-8 but it is marked as wrong. Please help

asked by Luricela on May 21, 2010
5. ## psychology

how is erikson's development theory applicable to children today? Did he use science to back up his theory? Could you help me find a good site. None that I've looked at have been able to help me with my essay.

asked by Anonymous on February 22, 2010
6. ## Pre-Cal

Recursive Sequences: find a formula for: 1,1,2,3,5,8,13,21 It looks like the Fibonacci sequence. Take the first two numbers and add them to get the 3rd. take the 2nd and third to get the fourth...etc. yeah, but how would i write that into a formula?

asked by James on December 6, 2006
7. ## Math

Find the area of composite polygon shown below top 110cm. Angel side 50cm. Bottom 180cm. Side 140cm

asked by Raven on May 22, 2017
8. ## math

Let 5a + 12b and 12a + 5b be the side lengths of a right-angled triangle and 13a + kb be the hypotenuse, where a, b and k are positive integers. Find the smallest possible value of k and the smallest values of a and b for that k

asked by m on July 19, 2009
9. ## College Algebra

A radioactive substance decays in such a way that the amount of mass remaining after t days is given by the function m(t) = 9e−0.012t where m(t) is measured in kilograms. (a) Find the mass at time t = 0.

asked by Melany on July 29, 2015
10. ## math

Let 5a + 12b and 12a + 5b be the side lengths of a right-angled triangle and 13a + kb be the hypotenuse, where a, b and k are positive integers. Find the smallest possible value of k and the smallest values of a and b for that k

asked by m on July 19, 2009
11. ## Calculus AB: Area Between Curves

Hello! I'm having trouble understanding how I'm supposed to work out this problem. Any help would be appreciated! Find the area of the region bounded by the curve y = f(x) = x3 – 4x + 1 and the tangent line to the curve y = f(x) at (–1,4).

asked by Pax on March 18, 2015
12. ## Math

Pool tables are rectangular, and their length is twice the width. Find the dimensions of a pool table if it occupies 162 ft2 of floor space

asked by Tiff on September 28, 2012
13. ## Math

A 120m cable TV tower casts a 96m shadow. Find the height of a nearby telephone pole that cast a 16m shadow.

asked by Tracy on August 27, 2013
14. ## Math

A beam tests against a wall, forming a 50 degrees with the floor. Use the function y=9 sec 0 to find the length of the beam to the nearest tenth of a foot. 14.0 ft 11.7 ft 5.8 ft 6.9 B?

asked by Mike on May 19, 2014
15. ## Physics

Span of a bridge is 32.0m and has a mass of 5.38x10^4 kg. A truck of mass 11700kg is stopped at 11.4m from one end. Find upwards force that must be exerted by each pair

asked by Sihle on April 5, 2016
16. ## Maths

One of the formulas to find the area of a triangle is a = r*s. Where the r is the radius of the circle inscribed the triangle, and s being the semi perimeter. (s = p/2) Prove that the same formula works for a square.

asked by Thomas on February 9, 2017
17. ## College Algebra

Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x^2+y^2+16x-18y+145=25

asked by Amanda on February 18, 2013
18. ## physics

A marine siren consists of a cylinder 72 cm in length closed at one end.for sound through air at 336 m/s. find the lowest frequency of the siren

asked by omar on June 4, 2016
19. ## Geometry

A student asks how to find the shortest path between two points A and B on two different faces which are neither the top or bottom of a right rectangular prism, without leaving the prism. How do you respond?

asked by Amanda on December 10, 2010
20. ## Math

Find the cost of shingles for the gable roof below if one bundle covers approximately 33 ft to the power of two and costs \$29.95. Length on top is 12.7 meters and down is 7.5 meters. Thanks

asked by Sharon on April 13, 2015
21. ## math (trig)

For the following value of cos 0, determine the rad value of 0 for pi < 0 < 2pi (greater than or equal to pi and 2pi) -1/2 I don't understand I found out that the inner circle val is pi over 3. But I can't work out how to find 0

asked by Laura on January 28, 2018
22. ## Algebra

My standard-form equation is (x+3)^2+(y+2)^2=4. Do I find the radius by doing the square root of four? I just wanted to check on this. Based on the example in my book, it seemed like this is the way to do this, but I wanted to make sure, because they

asked by Natalia on November 30, 2008
23. ## physics

a body of mass m accelarates uniformly from the rest to velocity v1 in time t,find the expression for instantaneous power deliver to the body as the function of t?.......can any one help me with this......please.....

asked by ether on September 30, 2013
24. ## math

Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0

asked by algebra on December 31, 2012
25. ## Math

Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 5, 13, 21, 29, 37, 45 1)8n;800 2)8n-3;797 3)3n-8;292 4)5+8n;805 I think #4 is correct. Thank you.

asked by Jamie M on March 20, 2018
26. ## Physics

A 180 N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

27. ## Physics

objects with masses of 285 kg and a 585 kg are separated by 0.420 m. (a) Find the net gravitational force exerted by these objects on a 62.0 kg object placed midway between them.

asked by Dani on May 3, 2011
28. ## pre-algebra

thomas borrowed \$4800 to buy a new car. he will be paying \$96 each month for the next 60 months. find the simple interest rate for his car loan.

asked by Cassandra on March 15, 2012
29. ## physics

A subway train starts from rest at a station and accelerates at a rate of until it stops at the next station. Find the distance covered. xtot=1800m

asked by Light on August 14, 2016
30. ## Geometry

If the sum of the measures of the interior angles of a n-sided polygon is 1,0800, then set up a mathematical model to find the number of sides of the polygon.

asked by Summer. on June 3, 2015
31. ## algebra

The length of a rectangle is 1 inch greater than its width. If the dimensions are doubled, its area increases by 36 square inched. Which equation could be used to find its dimensions?

32. ## Geometry (math)

The center of two pulleys are 27cm apart. One has the raddius of 13cm and the other has a radius of 5 cm.. Find the length of the blet that surrounds the two pulleys rounded to 2 decimal places.

asked by Fominia on April 26, 2011
33. ## gdme

A fuel consists of 85% C, 12.5% Hydrogen, 2.5% residual matter by mass, Working from 1st principles, find lower calorific values per kg of fuel.

Find the equation in slope intercept form of the tangent line and the normal line to the curve x^2+4xy+y^2=13 at the point.(2,1). show steps please!!! thank you!

asked by Tanya on April 8, 2014
35. ## math

lisa began her journey from home at 1350 and reached her destination at 1415. A.how long did she take for the whole journey? B.if the total distance taken was 45 km,find her speed.

asked by Da S on March 18, 2012
36. ## physics

A machine gun fires 20 bullets per second in to a target. Each bullet weight 10 gm and has a speed of 1500m/s; Find the Force necessary to hold the gun in position.

asked by salman on September 11, 2012
37. ## math

a right triangle whose hypotenuse is h mm long is rotated about one of its legs to generate a circular cone.find the radius and altitude of the cone of greatest volume.

asked by gen on February 14, 2011
38. ## physics

Two masses of 2kg,4kg and 6kg are placed at 4 corner of a square of side 1 metre find gravitational field intensity gravitational at centre.

asked by Anonymous on September 28, 2010
39. ## Chemistry

Find the mass of hydrogen gas if 420.5 mL of nitrogen gas reacted to form ammonia at STP according to the equation: 3H2 + N2 = 2NH3

asked by Mia on February 10, 2011
40. ## Chemistry

Help please am kind of confused on this problem, am mostly confused on what state the products will be. Find net ionic equation? 2Al(s)+ 3CuCl3(aq)-> 2AlCl3(?)+ 2Cu(?)

asked by John on October 4, 2010
41. ## in-text citations

If I have an internet article, how would I do an MLA in-text citation of the article. There's no page number. Would I just put the author's last name only in parentheses? I've googled it, but I couldn't find anything,

asked by jake on October 30, 2011
42. ## math

Each letter of the alphabet is written on a separate piece of paper and placed in a box. Find the probability of drawing a vowel, {a, e, i, o, u}, or a letter in the word "segments"?

asked by chandice on September 24, 2009
43. ## math

The distance between two piers is S miles. Two boats started moving simultaneously at speeds R1 and R2. How can you find the distance D between them if they moved for T hours in opposite directions.

asked by Anonymous on September 30, 2018
44. ## geometry

Two circles which are not congruent touch externally. the sum of their area is 130¦Ðcm.square and distance between their centers is 14 cm. find radii of circles.

asked by Rohit on September 28, 2014
45. ## Math

This is my sample: 29,083 ; 25,314, 31,920 ; 30,750 ; 32,302 I need to find the mean and standard deviation of this sample?! How can i assure the life spans are normally distributed?

asked by Aqueen on May 6, 2015
46. ## math

if the rate for radioactive decay for a substance is r=-.0063 and time is being measured in days how do you find the half-life of the substance to the nearest hour?

asked by mike on March 30, 2009
47. ## precalculus

After 3 hours the number of bacteria in a culture is observed to have doubled. Find the time that it takes the culture to grow to 30 times its initial size.

asked by Bria on October 21, 2014
48. ## Math

Create a word problem of your own about a triangle in any sports field. Write measures of all sides. Find area of the triangle by using Heron's formula.

asked by Aish on August 13, 2016
49. ## Precalculus

Find all solutions to 2 cos(theta) = - 1 on the interval 0 less than or equal to theta less than 2 pi Give your answers as exact values, as a list separated by commas.

asked by Anonymous on April 7, 2013
50. ## Pre-calc

If llull=1 and llvll=3, and the vectors maek angles of 170 degrees and 130 degrees with the x-axis respectively, find the component form of the sum of u and V. Please help thanks!

asked by Casandra on February 13, 2012
51. ## Math

The lengths of two sides of a rectangle are consecutive even integers. The perimeter of the rectangle is 196cm. Find the area. -please help, I don’t know where to start or how to approach this problem.

asked by Nikko on May 14, 2018
52. ## science

A body of mass 10kg is raised through a height of 15m from the ground where it was initially at rest when it was at that height it has velocity of 20m/s. find the work done.

asked by isha rani on September 27, 2018
53. ## finite math

suppose that 3 digits are selected at random from the set S={1,2,3,4,5,6} and are arranged in random order. Find the probability that the resulting 3-digit number is less than 300.

asked by allen on September 4, 2012
54. ## trig.

A 2000 pound car is parked on a street that make an angle of 12 degrees with the horizontal figure Find the force perpendicular to the street.

asked by gary on April 4, 2010
55. ## Geography

If functions of a city or town _____ in number of importance it will grow in ____ if they decrease the population will _____ I can't find where this is stated anywhere in the powerpoint I was given to look at

asked by Anonymous on April 30, 2016
56. ## algebra

Suppose your parents deposited \$1,500 in an account saying 3.5% interest compounded annually (once a year) when you were born. I have to find the account balance after 18 years , please help

asked by timberly on January 28, 2015
57. ## Physics

An arrow is fired vertically upwards by a bow and reaches an altitude of 134 m. Find the initial speed of the arrow on the ground level.

asked by Lesley on February 27, 2011
58. ## calculus

Find the volume of the solid whose base is the region bounded between the curve y=sec x and the x-axis from x=pi/4 to x=pi/3 and whose cross sections taken perpendicular to the x-axis are squares.

asked by Mark on March 1, 2011
59. ## English

When you need to find a more precise word to express your meaning, the best place to check would be a: A. pocket dictionary. B. reference manual. C. thesaurus. D. dictionary of antonyms. C

asked by Angela on April 7, 2014
60. ## math

so on one of my 6th grade practice test for the big test tomorrow and it said " which of the ratios below are equivalent to 10:12 circle all that may apply" and i was wondering how i find the equivalents

asked by skyler on April 30, 2019
61. ## algebra

Each letter of the alphabet is written on a separate piece of paper and placed in a box. Find the probability of drawing a vowel, {a, e, i, o, u}, or a letter in the word segment

asked by Anonymous on April 7, 2010
62. ## Quotes

I've read and tried to find information on what this quote means, but I still don't understand it. What does this quote mean? "We have had too good an opinion of human nature in forming our confederation."

asked by diana on September 30, 2009
63. ## Science

A Stone of 5 kg falls from the top of a cliff 50 m high and buries 1m in sand. Find the average resistance offered by the way sand and the time taken to penetrate.

asked by GAurav on August 10, 2017
64. ## trig

A 100 kg box slides with constant velocity down a ramp inclined at 20 degrees, with the horizontal. Find the frictional force acting on the box.

asked by Tsuki on April 17, 2012
65. ## physics

3 identical charges each having charge 10 coulomb are placed at the corners of an equilateral triangle of side 20cm find the electric field at the centre of triangle

66. ## Calculus

Find the volume of the solid formed by rotating the region bounded by the graph of y equals 1 plus the square root of x, the y-axis, and the line y = 3 about the line y = 5.

67. ## calculus

A particle moves in a straight line with velocity given by v(t) =sin t metres per second. Find the total distance travelled by the particle in the first 4 seconds of motion

asked by jenna on February 14, 2012
68. ## physics

A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power ratingof the mover. I solved by using P= mgh/t and came up with 220.5 watts. Is this correct or am I suppose to use P=w/t?

asked by Mack on December 4, 2011
69. ## calculus

A right triangle with hypotenuse 5 inches is revolved around one of its legs to generate a right circular cone. Find the radius and height of the greatest volume cone.

asked by jj snoke on November 6, 2011

I ahve to find the concentration of product, (Fe(SCN)^2+) at equilibrium. We have to use the equation k=A/C I have the value for k and A so my equation is 7917.6 = 0.453/C = 3586.67M Did I do the math correctly?

asked by Hannah on March 3, 2012
71. ## Science

What kind of information has the International Space Station provided us? And what have we benefited from the information? I'm doing a project and I can't find these answeres ANYWHERE!! Any answers or websites would be GREAT!! Thank you!!!

asked by Ceci on April 25, 2010
72. ## math

A melting snowball has a radius that decreases 1/4 inch per hour.?Find the rate of change of the volume with respect to time when the radius is 4in ?

asked by josh on November 6, 2016
73. ## Maths

Triangle ABCis right angled at a .AD is perpendicular to BC.If AB=5cm,BC=13cm and AC=12cm,Find the area of triangle abc .Aiso findthe length of AD.

asked by anonymus on November 30, 2011
74. ## history

In “The Raven and the First Men: The Beginnings of the Haida,” which evidence best helps the reader infer that the Haida might find it acceptable behavior to play tricks on one another?

asked by andrea on September 27, 2018
75. ## Social Studies

Which type of amp would you use to find out the population of northern canada thematic? Which type of map would you use to compare the elevations of the alpha and andes physical?

asked by Jerald on January 9, 2013
76. ## math

Each letter of the alphabet is a written on a separate piece of paper and placed in a box. Find the probability of a drawing a vowel a,e,i,o,u or a letter in the word sum. Thank you

asked by Kay Kay on December 31, 2009
77. ## Physics

A 175-N box is placed on an inclined plane that makes a 20.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

asked by Wesley on November 12, 2015
78. ## math

Take 90 cm as the two sides of a triangle (Line B and C), with an angle of 32 degrees (Degree 'a'). Use the Law of Cosine to find out Line A's length. Round it up to the nearest digit.

asked by Anonymous on November 23, 2010
79. ## science

A body was moving with a velocity 60km/hour. It is brought to rest by applying a force of 200newton.Find the mass of body in5sec

asked by Aisha on November 19, 2017
80. ## prasanna high school

Subject:maths. question: the sum of first 6terms.of an aritmetic progression is 6.the product of 2nd term & 5th term is -80 find the terms of A.P.

asked by Anonymous on October 9, 2015
81. ## math

Find the value of each of the following. Leave your answers as fractions where appropriate. Do not change bases. a) log4 (1/8) B)10^(-10log3)

asked by james on March 15, 2012
82. ## pre cal

write the standard form equation of the parabola with vertex (-2,-2) that goes through point (-1,0) y= a (x-b)^2 + c b has to be -2, that gives the shift to the left. y=a( x+2)^2 + c when x=-2, y=-2, that makes c -2 y=a( x+2)^2 -2 finally, put the point

asked by jason on March 5, 2007
83. ## math

Find the length of a guy wire that makes an angle of 45.5 degrees with the ground if the wire is attached at the top of a tower 63.0 meters high

asked by Ashley on October 17, 2015
84. ## Math

Find a unit rate for number of parts manufactured per hour if 1628 parts are made in seven hours round to the nearest integer

asked by Sam on March 15, 2012
85. ## Chemistry

Find the Qsp when 9 drops of 0.014 M Na2CO3(aq) are added to 25 mL of 0.003 M AgNO3(aq). The solubility product of Ag2CO3 is 6.2 × 10−12. Assume 20 drops per milliliter.

asked by Alice on March 30, 2013
86. ## Research- psychology

Are there books written about the history of psychoanalysis? I have to write a paper about Sigmund Freud and how he was a turning point in history but I can't find sources that have to do with the BEFORE and AFTER. Any suggestions?

asked by Namrot on April 14, 2009
87. ## calculus

h(t)=cot t a.) [pi/4,3pi/4] b.) [pi/6,pi/2] Find the average rate of change of the function over the give n interval and intervals. Please show step by step instructions. Thanks

asked by emmanuel on August 27, 2017
88. ## Algebra

Find the equation of the line, in slope-intercept form, that satisfies the given conditions. The graph is perpendicular to the graph of y = 5x − 9 and passes through the point whose coordinates are (3, −1).

asked by Kim on October 22, 2014
89. ## calculus

Find the area of the largest rectangle with one corner at the origin, the opposite corner in the first quadrant on the graph of the line f(x)=20-5x , and sides parallel to the axes.

asked by ali on November 3, 2008
90. ## Physics

A sports car accelerates from a standing start to 85mi/h in 4.61s. a. Find its acceleration in feet per second squared. b. How many feet does it travel in that time?

asked by Brent on March 7, 2012
91. ## physics

a ball of mass of 4kg,of density 4000kg/m3 is completely immersed in water of density 1000kg/m3.find the force of buoyancy.[g=10m/s2]

asked by keerthiga on October 23, 2012
92. ## physics

a curve along the highway is to be banked for traffic expected to move at 80km/hr. find the angle of banking if the radius of the curve is 100 meters

asked by denver on November 23, 2016
93. ## math

find the interest rate to the nearest hundredth of a percent that will produce \$2500, if \$2000 is left at interest compounded semiannually for 4.5 year

asked by amber on October 23, 2012

Identify a serious error you find challenging to overcome in your own writing. What effect would making this serious error have on a document that you might have to write as part of your future career?

asked by niya on April 15, 2014
95. ## Calculus

Consider the function f(x) e^x-1/2x^2. Find all points of inflection if they exist. Please show sign graph and show work in detail so I can follow for future reference. Thanks.

asked by Rene on April 20, 2013
96. ## Chemistry

At 25 degrees Celsius Ksp for CaSO4 is 2.5 x 10^-5 suppose 100mL of 0.5M Na2SO4 is mixed with 100mL of 1.65 M Ca(NO3)2 find the initial concentrations of Ca^2+ and SO4^2-

asked by Elise on February 23, 2019
97. ## maths

the length of the diagonals of a rhombus are 24cm and 32cm. the perimeter of the rhombus is (A) 9cm (B) 128cm (C) 80cm (D) 56cm plz do explain how to find. thank you

asked by chinnu on August 31, 2011
98. ## physics

A charge is uniformly distributed over a linear section from 0

asked by Sandhya on March 29, 2011
99. ## math

tiles are fitted on the ground of a rectangle hall having length 5m and breadth4m find the number of tiles if they are square shaped having each side 25cm

asked by vaidehi on March 29, 2013
100. ## math

In the addition problem find the digit represented by C. Each time a letter appears it represent the same digit. A does not equal 0 (zero). AB AB AB + AB ______ CA please explain your results Thanks

asked by nisrin on February 23, 2014