1. programming

    1. Suppose that you want to search for a friend, ‘S’, telephone number in a phone book. List the steps taken if you use binary search. Illustrate with the list of alphabets ignored during the search by crossing them. (Example – Step 3 – Ignore

    asked by juju on May 6, 2014
  2. Calculus

    Find the rate of change of f(x,y,z) = xyz in the direction normal to the surface yx^2 + xy^2 + yz^2 = 75 at (1,5,3). I keep getting this wrong and I don't know what I did right. The answer's 147/sqrt(101) but I got 357/sqrt(1361). Is my method right? Or

    asked by . on July 19, 2019
  3. CJS230

    Will someone please help me find a resourceful webiste to answer the following questions? What is an example of a state prison system? How might you explain the growth of state prisons? How can U.S. corrections professionals solve the problem of

    asked by Sade C on June 22, 2012
  4. English

    1. I find it is good that he likes helping poor people. 2. I believe it is good that he likes helping poor people. 3. I think it is good that he likes helping poor people. 4. I consider it is good that he likes helping poor people. 5. I guess it is good

    asked by rfvv on November 2, 2016
  5. Math

    The diameter of a basketball rim is 18 inches. A standard basketball has a circumference of 30 inches. What is the distance between the ball and the rim in a shot in which the ball goes exactly in the center of the rim? Show your work. First I must find

    asked by Mace on May 1, 2018
  6. Calculus

    a solid has as its base the region bounded by the curves y = -2x^2 +2 and y = -x^2 +1. Find the volume of the solid if every cross section of a plane perpendicular to the x-axis is a trapezoid with lower base in the xy-plane, upper base equal to 1/2 the

    asked by James on August 29, 2017
  7. general chemistry II

    a solution of a metal ion has a molar absorptivity (E) of 75M^-1 at 450 nm. a 10mL sample of this solution was withdrawn and diluted to 250mL. from this diluted solution, a 5 mL sample was withdrawn and diluted to 100 mL. the absorbance of the final

    asked by libby on June 6, 2018
  8. Calculus (Volumes)

    A solid has as its base the region bounded by the curves y = -2x^2 +2 and y = -x^2 +1. Find the volume of the solid if every cross section of a plane perpendicular to the x-axis is a trapezoid with lower base in the xy-plane, upper base equal to 1/2 the

    asked by Peterg on August 29, 2017
  9. 11th garde physics

    A grocery cart with a mass of 18 kg is pushed at constant speed along an aisle by a force F = 12 N. The applied force acts at a 20° angle to the horizontal. Find the work done by each of the forces on the cart if the aisle is 17 m long. a)work done by the

    asked by Luricela on February 13, 2010
  10. Math Word Problem

    A cross section of a nuclear cooling tower is a hyperbola with equation x^2/90^2-y^2/130^2=1. The tower is 450ft tall and the distance from the top of the tower to the center of the hyperbola is half the distance from the base of the tower to the center of

    asked by John on April 29, 2009
  11. Calculus

    1. The expression dy/dx = x(cube root (y)) gives the slope at any point on the graph of the function f(x) where f(2) = 8. A. Write the equation of the tangent line to f(x) at point (2, 8). y'=x∛y The tangent line at (2,8) is thus y-8 = 4(x-2) B. Write an

    asked by Wallace on April 23, 2019
  12. mathematics

    What is the solution for this? The surface area of a sphere varies in direct proportion to the square of its radius. If a sphere of radius 6cm has a surface area of 452 square cm, find, to the nearest mm, the radius of a spherewith the surface area 1000

    asked by Richelle on October 29, 2011
  13. Physics

    A 10 kg ball moving due west at 2m/sec collides with a 4kg ball that is moving due east at 3 m/sec. You determine that immediately after the collision the 10 kg ball is moving due west at 0.57 m/sec. How do I set up the equations to find the answer?

    asked by Christina on October 26, 2010
  14. Managerial Economics

    I've been trying to find a solution to this without much success. I am given the following....The production engineers at Impact Industries have derived the expansion path shown in the following figure. The price of labor is $100 per unit. There is a graph

    asked by Ed on July 15, 2007
  15. physics

    . A small statue in the shape of a falcon has a weight of 24.1 N. The owner of the statue claims it is made of solid gold.When the statue is completely submerged in a container brimful of water, the weight of the water that spills over the top and into a

    asked by Nathan on December 13, 2009
  16. Physics

    A horizontal pipe is shown and has an area of 40.0 cm2 in wide areas and 10.0 cm2 in narrow areas. It is also connected to a U shaped tube filled with mercury. water is flowing through the pipe at a rate of 5.00 L/s. Find (a) the flow speeds at the wide

    asked by Francis on April 24, 2017
  17. Legal Rights

    Can someone point me in the right direction on where to find this answer? After discharging Brewster as his collection agent, Wayne hires Graham to collect his accounts. Graham, new to the collection business, is unaware of the proper procedure. He places

    asked by Giovanna on February 12, 2015
  18. physics

    An electron is a subatomic particle (m = 9.11 x10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.11 x 105 m/s to a final velocity of 1.67 x 106 m/s while traveling a distance of

    asked by Natasha on March 10, 2012
  19. physics

    A plane progressive wave is represented by the wave equation: y=0.1sin⁡(200 ðt-20ðx/17) Where y is in millimetres, t is in seconds, and x is the distance from a fixed origin, O, in metres. Find: The frequency of the wave The wavelength of the wave The

    asked by rare on May 11, 2013
  20. Math

    ) If you are standing near the edge of the top of a 200 ft. building and throw a ball vertically upward it will be modeled by the function 𝑠(𝑡) = −16𝑡2 + 64𝑡 + 200 where s(t) is the balls height above ground in feet and t is seconds after the

    asked by Kevin on December 4, 2014
  21. math

    A random sample of 16 mid-sized cars tested for fuel consumption gave a mean of 26.4 kilometers per liter with a standard deviation of 2.3. (a) Assuming that the kilometers per liter given by all mid-sized cars have a normal distribution, find a 99%

    asked by Kapaki Katea on April 26, 2016
  22. Physics

    A rocket launched from earth with a rest mass of 150,000Kg moves at 2.8x10^8 m/s during a voyage that takes 1.3 years, according to a clock on board the rocket. a) Using relativity, calculate how long the voyage would take, from earth's reference frame. b)

    asked by Dani on September 9, 2018
  23. statistics

    A random sample of 16 mid-sized cars tested for fuel consumption gave a mean of 26.4 kilometers per liter with a standard deviation of 2.3. (a) Assuming that the kilometers per liter given by all mid-sized cars have a normal distribution, find a 99%

    asked by Angee on October 25, 2014
  24. greatest events after 1987

    List five events which have occurred after 1987 that you feel have most markedly altered your economic/technical future. i have to come up with five things but i'm stuck. i'm researching on the internet but i can't find anything. telephones and electricity

    asked by julie on November 17, 2007
  25. maths

    radius (r) of a cicrlce is divided into 10 equal sections. The area of the circle = sum of the areas of the pie-shaped sections. We can estimate the area of the circle by thinking of each pie-shaped piece as a triangle with base B and height H. The area of

    asked by rajkaur on January 4, 2019
  26. physics

    An enemy plane is flying horizontally at an altitude of 2.0km with a speed of 340m/s.An army man with anti-craft gun on the ground sight the enemy with a muzzle speed at 60m/s .when the enemy plane is directly overhead.find a)at what angle from the

    asked by henro on January 16, 2016
  27. Calculus

    Find the exact area of the region enclosed by the square root of (x) + the square root of (y) is = 1; x = 0 and y = 0. I moved the first equation around to get: y = [1- the square root of (x) ] ^2 Unfortunately, this gives me bounds from 1 to 1. So I'm

    asked by Mike on April 20, 2007
  28. Math

    Hey, Ms. Sue, or anybody that is apart of this association. I already tried reviewing this answer, but I didn't seem to get anything. I'm clueless over this answer, so.. Can you please help? I've been stuck on this, and nobody wants to help me. This is the

    asked by I don't give my real name. But it's Lexi for short on January 22, 2015
  29. Chemistry

    What is the percent yield of the reaction below if 2.23g of hydrogen gas react with 55.3 g of iodine to produce 43.1g of HI. use the equation below: H2+I2=2HI the answers: a) 21.8 b) 77.3 c) 33.7 d) 87.1 I started by trying to find the limiting reagent. I

    asked by John on March 22, 2016
  30. Physical science

    Athlete runs twice round the circular athletics track. The track has a total length of 320 m and a diameter of 100 m. Make a scale drawing of the track. Use a scale of 1 cm represents 10 m. Taking the start as point 1, find both the athlete's distance and

    asked by Khanyisa on January 30, 2011
  31. Spanish History..?

    One spanish explorer landed on ____ street in St. Petersburg. A plaque marks the arrival of ____ in (date) ____ located at Abercrombie Park. Name two ways one might know that an influx of immigrants lives in the area. Where can one find a statue of

    asked by Deborah on September 7, 2009
  32. physics

    A light spring with force constant 3.85 N/m is compressed by 5.00 cm as it is held between a 0.250 kg block on the left and a 0.500 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each block, tending to push them

    asked by Jessi on February 24, 2009
  33. Math!

    Dalya is considering two offers on a property that she is willing to sell. Mr.Wangs offer is $65000 payable immediately. Ms.Macrae's offer is for $13,000 down and $58000 payable in two years. a) Which offer has the greater economic value if Dalya can earn

    asked by Thara! on March 20, 2010
  34. Dynamics

    The rod of the fixed hydraulic cylinder is moving to the left with a speed of 100 mm/s and this speed is momentarily increasing at a rate of 400 mm/s each second at the instant when sA = 425 mm. Determine the tension in the cord at that instant. The mass

    asked by Anonymous on April 1, 2017
  35. math

    Uniform rod AB with end B resting against rough vertical wall. Coefficient of friction between wall and rod is μ. Rod is 2m long and has mass 3kg. Rod is kept in limiting equilibrium by a light inextensible string, one end of which is attached to the end

    asked by Michael on April 23, 2014
  36. Math(Probability)

    An environmental survey contained a question asking what respondents thought was the major cause of air pollution in this country, giving the choices “automobiles,” “factories,” and “incinerators.” Two versions of the test, A and B, were used.

    asked by Alex on May 4, 2011
  37. Math

    An environmental survey contained a question asking what respondents thought was the major cause of air pollution in this country, giving the choices “automobiles,” “factories,” and “incinerators.” Two versions of the test, A and B, were used.

    asked by Traxx on May 4, 2011
  38. chemistry

    Hey, I'm struggling a bit with this thermal energy question: One major cost in the brewing history is the cost of energy used in running a plant. Much of the heating plant is accomplished by the cooling and or condensing of steam. When 50.0 mg of griest is

    asked by Yana on March 21, 2015
  39. question

    how can i find free scholar ship for me i am social department if u can help me plz feel free to connect me thanks much Please talk with your high school guidance counselor about college scholarships. She or he will want to know what your career goals are

    asked by asmaa on October 20, 2006
  40. physics

    A playground carousel (“merry-go-round”) is free to rotate frictionlessly in the horizontal plane (and air resistance is negligible). Without riders, the carousel has a moment of inertia of 152 kg·m2. But there is a single rider, initially standing

    asked by becca on November 1, 2010
  41. Quantitative Literacy | MAT106

    In this assignment, look for and provide two advertisements that you think contain logical fallacies. Use any advertisement that you can find in magazines, on television, or from the Internet for this assignment. Your two examples must represent two of the

    asked by Minty on November 8, 2013
  42. Physics-Please check

    I posted this question this morning but I'm not sure of the response Damon provided. If you were in a rotor style ride and the riders accelerate until the speed of ride is reached- if the radius of the cylinder is 5.0m and the coefficient of friction

    asked by Joey on December 7, 2010
  43. Algebra please help!

    I'm very confused with what I'm learning about right now. We are kind of talking about slopes, functions, graphs, etc. Today, my teacher taught about midpoint and distance, and did not explain very well at all. Would someone please explain to me how to

    asked by Celina on December 10, 2008
  44. Physics

    The drawing shows a circus clown who weighs 750 N. The coefficient of static friction between the clown’s feet and the ground is 0.630. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the

    asked by KS on April 8, 2015
  45. history

    i'm not sure where to find the answer to this question, I've searched google,..but it gives too much irrelevant information.please help what led the government to evacuate Japanese Americans from the West Coast? a. long-held prejudice, and fears inflamed

    asked by history on March 31, 2009
  46. Business communication

    can someone help me to correct it? this message address to international employee. Message intend to announce a revenue drop caused by intensive competitive pressure Howdy guys! Shouldn’t surprise anyone that we took a beating this year, given the insane

    asked by Artem on January 27, 2014
  47. Geography.

    Explain how each of thse affect climate. -latitude -ocean currents -winds and air masses -elevation(altitude) -relief(mountain barriers) -nearness to water Please help. I need straight forward answers. I read some info online about these...but I do not

    asked by Kim on May 9, 2007
  48. physics

    A solid uniform 45.0 kg ball of diameter 32.0 cm is supported against a vertical frictionless wall using a thin 30 cm wire of negligible mass. (a) make a free body diagram for the ball and use it to find the tension in the wire and (b) how hard does the

    asked by L on June 11, 2010
  49. Statistics

    During a national debate on changes to health care, a cable news service performs an opinion poll of 570 small-business owners. It shows that 72 percent of small-business owners do not approve of the changes. (a) Develop a 90 percent confidence interval

    asked by Nathalia on October 30, 2011
  50. physics

    Two speakers are separated by distance d1 = 2.40 m and are in phase. You are standing 3.00 m directly in front of one speaker. Each speaker has an output power of 1.20 W. Because the speakers are at different distances, there will be frequencies at which

    asked by Anonymous on October 11, 2011
  51. physics

    You and a friend are playing a game of squirt-gun tag in a maze. Suddenly you see your friend's image in a small planar mirror. You take a shot over the barrier in front of you and find that your friend is just at the end of the 7.0 m range of your squirt

    asked by cate on May 7, 2011
  52. statistics

    A line of regression y = -1,240 + 7.07x is the best fit line for a set of data comparing airfare with 30 days notice and one-day notice. Find the best predicted cost of a ticket purchased one day in advance given that the cost of the ticket is $300 if

    asked by maczindahouse on May 16, 2019
  53. statistics

    a line of regression y =-1.240 +7.07x is the best fit line for a set of data comparing airfare with 30 days notice and one-day notice. find the best-predicted cost of a ticket purchased one day in advance given that the cost of the ticket is $300 if

    asked by shay on March 15, 2019
  54. p

    The displacement of a block of mass 778g778g attached to a spring whose spring constant is 38N/m38N/m is given by x=Asin(ωt)x=Asin(ωt) where A=25cmA=25cm . In the first complete cycle find the values of xx and tt at which the kinetic energy is equal to

    asked by kara on February 13, 2017
  55. Math

    Walking at 4km/h, Bruce can make the roundtrip between his campsite and Lookout Point in 2.5 h. Rowing on Crooked River, he can row upstream from the campsite to Lookout Point in 1 h and can row back again in 40 min. Find Bruce’s rate of rowing in still

    asked by Anonymous on February 6, 2011
  56. Maths

    The probability that Don's car passes the MOT test next time is 4/5, that Mag's car passes is 5/7 and that Joe's car passes is 1/2. Find the probability that a)all three will pass b)just two out of the three will pass c)no car passes? (might need a

    asked by Anonymous on February 4, 2008
  57. math

    A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter. 3x-4+7x+10= 3x+7x=10x −4+10= 14 10x+14 that is my answer please help You just added two sides, a rectangle has four sides. So the perimeter should be twice

    asked by susie on June 29, 2007
  58. really need some help with this

    i need some help on this question a diamond cutter has a raw diamond that weighs 19.5 carats and from which two 5-carat diamonds will be cut. i need to find out how much the raw diamond weigh in milligrams and plus how much will each of the two cut

    asked by Amber on September 14, 2009
  59. math

    Three pupils John, Daniel and David contributed a total of $400 for a party. John contributed $30 more than Daniel while, David contributed three times as much as John. If David contributed $x, which one of the equations below can be used to find David's

    asked by kudu on January 29, 2015
  60. science

    i need some help on this question a diamond cutter has a raw diamond that weighs 19.5 carats and from which two 5-carat diamonds will be cut. i need to find out how much the raw diamond weigh in milligrams and plus how much will each of the two cut

    asked by Amber on September 14, 2009
  61. Math

    It takes 3 cups of granola and 2 cups of raisins to make trail mix if I want to make 15 cups of trail mix how many cups of raisins do I need? Please explain steps to find x, I got 45 but I saw people got different answers??? Please help me and I just want

    asked by Callie on January 28, 2016
  62. English/Writing

    Find the sentence with the active voice. 1 - The chairman told me that the legislature passed the bill. 2 - It was voted by the legislature to pass. 3 - The bill was passed by the legislature 4 - I was told by the chairman that the bll was passed by the

    asked by Sarah on February 19, 2008
  63. Chemistry

    The solubility of Chromium (II) Hydroxide is .0035g/100mL - Calculate the solubility product of Chromium (II) Hydroxide. I know that we have to find Ksp. but i do not understand how to make the Ksp equation to calculate the solubility product, if it is

    asked by cool kids on April 27, 2017
  64. maths

    a water tank is filled by two pipes in 48 minutes. if the larger pipe fill it alone in 40 minutes less time the smaller pipe. find the time it takes for the smaller pipe to fill the tank alone.

    asked by ayesha on October 20, 2015
  65. Maths

    From a point A, due south of a tower , the angle of elevation of the top is 45degree, another point B is due east of the tower and the bearing of B from A is 30degree. Find the angle of elevation of the top of the tower

    asked by Akinsola on July 21, 2019
  66. Maths

    From a point A, due south of a tower , the angle of elevation of the top is 45degree, another point B is due east of the tower and the bearing of B from A is 30degree. Find the angle of elevation of the top of the tower B

    asked by Akinsola on July 21, 2019
  67. math

    A plane flies 540 miles for 2 hours in the direction of the wind. Then it turns around and flies 690 miles for 3 hours against the same wind. Find the speed of the plane in still air and the wind speed.

    asked by Anonymous on August 10, 2015
  68. physics

    When you lift a bowling ball with a force of 69.3 N, the ball accelerates upward with an acceleration a. If you lift with a force of 77.2 N, the ball's acceleration is 2.00a. Calculate the weight of the bowling ball. For this should I add both force

    asked by Samantha on September 22, 2009
  69. Math/Geometry

    Two circles of radius r1 and r2 are extenally tangential to each other and are also externally tangential to a staight line l. Another circle of some unknown radius is externally tangential to both the circles and to the straight line l. Find the adius of

    asked by abcd on March 13, 2013
  70. Math

    One side of a rectangle is 20 cm larger than the other side. If you make the smaller side two times larger and the larger side three times larger, then the perimeter of the new rectangle would be 240 cm. Find the lengths of the sides of the original

    asked by Eliza VERY URGENT on December 6, 2018
  71. Dynamic

    A stone is dropped into a well with initial velocity zero from a point 5 m above the mouth of the well and the splash is heard after 7 s. A second stone is thrown into the well with initial velocity uₒ from the same point and the splash is heard after 5

    asked by Adnan on April 22, 2016
  72. Physics

    Two resistors, 6 ohms and 18 ohms are connected in parallel and the combination is connected in series with a 2 ohm resistor. Find the current through each of the first two resistors if the current through the 2 ohm resistor is 1.2 ampere. What is the

    asked by Mycah on March 5, 2017
  73. math

    The longest side of a triangle is six more units that the shortest side. The third side is twice the length of the shortest side. If the perimeter of the triangle is 25 units, write and solve an equation to find the length of all three sides of the

    asked by Valdo on March 1, 2015
  74. math

    One side of a rectangle is 20 cm larger than the other side. If you make the smaller side two times larger and the larger side three times larger, then the perimeter of the new rectangle would be 240 cm. Find the lengths of the sides of the original

    asked by what. on December 9, 2018
  75. 5th grade math

    what is the least common multiple The least common multiple is the lowest possible number that has both numbers for a factor. For instance, if you are asked to find the LCM for 4 and 8, the LCM would be 8 because it is divisible by both 4 and 8. If you

    asked by leo on October 5, 2006
  76. Physics

    A 215 g particle is released from rest at point A (the middle of one side) inside a smooth hemispherical bowl of radium 30.0 cm. Calculate the gravitational potential energy at A relative to B. (B is in bottom-middle of the bowl) Ok, so PE_g=mgh. How would

    asked by Becca on December 5, 2006
  77. statistic

    This data shows the final exam scores of 10 randomly selected students and the number of hours they studied for an exam. (hours, scores) (3, 65), (5, 80), (2, 60), (8, 88), (2, 66), (4, 78), (4, 85), (5, 90), (6, 80), (3, 71) Find the equation of the

    asked by maria on September 17, 2011
  78. math

    An architect is planning a building in the shape of a rectangular prism. The length of the building is 20 feet more than its width and the height is 10 feet more than twice its width The inside volume of the building is 2,000,000 cubic feet. A model of the

    asked by Kyle Raeside on November 26, 2018
  79. Calculus

    A bucket begins weighing 15 pounds, including the sand it holds. The bucket is to be lifted to the top of a 50 foot tall building by a rope of negligible weight. However, the bucket has a hole in it, and leaks 0.1 pounds of sand each foot it is lifted.

    asked by Joey on April 29, 2016
  80. math

    The average raindrop has a diameter of 2.55mm. Columbus, OH has an average rainfall of 38.52 inches per year. You know how to find the volume of a sphere and diameter and volume= L*W*H and that 1 meter = 39.37 in. Leap year = 366 days/year. How many rain

    asked by Rebecca on August 31, 2012
  81. Calculus

    A bucket begins weighing 30 pounds, including the sand it holds. The bucket is to be lifted to the top of a 25 foot tall building by a rope of negligible weight. However, the bucket has a hole in it, and leaks 0.1 pounds of sand each foot it is lifted.

    asked by David on May 6, 2016
  82. Maths ( Higher Level) Simultaneous Equations.

    A mother is x years old, her son is y years old and the sum of theirs ages together is 58 years. Five years ago, the mother was five times as old as the son. Write two equations in x and y and solve them to find the age of their mother and age of the son.

    asked by Anonymous ~ 2nd Year on April 24, 2017
  83. Algebra 2

    Walking at 4km/h, Bruce can make the roundtrip between his campsite and Lookout Point in 2.5 h. Rowing on Crooked River, he can row upstream from the campsite to Lookout Point in 1 h and can row back again in 40 min. Find Bruce’s rate of rowing in still

    asked by Sue on February 6, 2011
  84. math

    Sam kicks a ball horizontally along a deck that is 5 m above the ground. The ball goes off the edge of the deck. A model for the path of the ball once it leaves the deck is a parabola. The equation of the parabola is y = ax^2+ bx + c. The ball hits the

    asked by James on August 23, 2011
  85. Math

    A bucket begins weighing 15 pounds, including the sand it holds. The bucket is to be lifted to the top of a 50 foot tall building by a rope of negligible weight. However, the bucket has a hole in it, and leaks 0.1 pounds of sand each foot it is lifted.

    asked by David on April 30, 2016
  86. Math grade 6

    3 rectangular metal blocks,8 cm long, 6 cm wide & 5 cm high, were placed in an empty rectangular glass tank.water was then poured in until it reached a height of 10 cm. Another 5 similar blocks were put into the water so that it reached the brim of the

    asked by Peach on February 28, 2017
  87. M,ath

    How do we find the greatest common factor of a polynomial? Demonstrate the process with an example, showing your work. When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient? Can it ever be smaller than

    asked by Anonymous on November 22, 2010
  88. problem solving

    A ladder 5 meters long leans against a wall, reaching over the top of a box that is 1 meter on each side. The box is against the wall. What is the maximum height on the wall that the ladder can reach? The side view is: Assume the wall is perpendicular to

    asked by kakak on December 8, 2014
  89. math

    The height of a triangle is 4 inches more than the base. The area of the triangle is 35 square inches. Find the base and height of the triangle.

    asked by troy on October 26, 2016
  90. Intermediate Algebra

    The perimeter of a triangle is 48 centimeters. The longest side is 2 centimeters less than the longest side. Find the lengths of each side of the triangle.

    asked by M on February 14, 2012
  91. Math

    A boat can go 20 miles against a current in the same times that it can go 60 miles with the current. The current is 4 miles per hour. Find the speed of the boat with no current.

    asked by Help!!! on January 15, 2014
  92. Math

    The area of a rectangle is given by the expression 3x^2+7x-40. A. What is the length of the rectangle if its width is x+5? B. If x=2cm, find the length, width and area of the rectangle?

    asked by Bella on July 8, 2018
  93. contemporary math

    suppose that the length of one leg of a right triangle is 2 inches less than the length of the other leg.the length of hypotenuse is 10 inches.find the length of each leg.

    asked by maria christina ordillano on August 16, 2014
  94. Algebra

    A boat can go 20 miles against a current in the same times that it can go 60 miles with the current. The current is 4 miles per hour. Find the speed of the boat with no current.

    asked by May on January 15, 2014
  95. math

    There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she has been to both. Find the probablility that she has been to Casper or Denver recently.

    asked by Ted on July 29, 2013
  96. Maths

    The ratio of zinc and copper in an alloy is7:9 if the weight of the copper in the alloy is 11.7 kg , find weight of the zinc in the alloy

    asked by Eklavya joshi on February 25, 2017
  97. geometry

    a tree is 10 ft. 3 in. tall. To find the height of a tower,the shadow of the tree and the shadow of the tower were measured. What is the height of h of the tower?

    asked by Nika on June 23, 2016
  98. maths

    Find the slope and the y- interceft of each line whose equation is given - 4x +y = 7 write a point slope equation for the line with slope that contains the given point. m = - 5/4,x(-2,6)

    asked by ngo on March 26, 2011
  99. Calculus

    Find the derivative of y=5^(1-4x) lny=(1-4x)ln5 Can I split it? lny=ln5-4xln5 1/y dy/dx = -[4ln5/(4xln5)^2] dy/dx=-[4ln5/(4xln5)^2]y Thanks.

    asked by sh on December 9, 2010
  100. Math

    uh oh if pencils cost 20 cents and pens cost 30 cents each find the cost of the following items number 36 has r pens and p pencils

    asked by Leo on August 21, 2007

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