Questions Asked on
July 22, 2015

  1. math

    Missi designed a stained glass window and made a scale drawing using centimeters as the unit of measurement. She originally planned for the length of the window to be 44 in. but decided to change it to 48 in. If the length of the window in her scale

  2. chem

    How many moles of O2 contained in 5.25L of a gas at 26 degrees C and 1.2 atm?

  3. College Algebra

    f(x) = x2 + 11x, x ≥ − 11/2 find the inverse

  4. College Algebra

    A function f has the following verbal description: "Multiply by 5, add 9, and then take the fifth power of the result." and find the inverse?

  5. math

    A mountain bike is priced at $413. If the sales tax is 6.5 percent, what is the cost to purchase the mountain bike? Round to the nearest cent if necessary.

  6. maths

    3x + 14y = 5xy 21y - x = 2xy kindly solve the pair of linear equation

  7. math

    Raymond bought a used truck for $18,800. If the sales tax in his state is 7 percent, what was the final price for his car?

  8. math

    Points $D$, $E$, and $F$ are the midpoints of sides $\overline{BC}$, $\overline{CA}$, and $\overline{AB}$, respectively, of $\triangle ABC$. Points $X$, $Y$, and $Z$ are the midpoints of $\overline{EF}$, $\overline{FD}$, and $\overline{DE}$, respectively.

  9. Math

    Two towns A and B are to get their water supply from the same pumping station to be located on the bank of a straight river that is 15 km from town A and 10 km from town B. If the points on the river nearest to A and B are 20 km apart and A and B are on

  10. Math

    What is the greatest common factor that can be removed from: 15x^35 - 18x^28 + 27x^12?

  11. calculus

    find volumes of solids generated by revolving the regions bounded by the graphs of the equations about the given lines. y=square root of x y=0 x=3

  12. ALGEBRA

    A car travels 20 kph faster than a truck. The car covers 350 km in two hours less than the time it takes the truck to travel the same distance. What is the speed of the car? How about the truck?

  13. Statistics

    The Tyco Video Game Corporation finds that it is losing income because of slugs used in its video games. The machines must be adjusted to accept coins only if they fall within set limits. In order to set hose limits, the mean weight of quarters in

  14. English grammar

    Select all the statements that apply to the sentence below. She did not believe that he actually knew the rules of bowling. -The sentence contains a gerund.

  15. chemistry

    5.85gm of NaCl is dissolved in water and the solution is made up to 0.5 litre. what is the molarity of solution ????

  16. English grammar

    Identify the verbal in this sentence as infinitive, gerund or participle. They cried, but there was none to save them: even unto the LORD, but he answered them not. (Psalm 8:41) I chose infinitive because "to save them" looks like an infinitive that

  17. math

    Yuron is sketching a scale drawing of a famous painting. The painting is 54 inches wide and 72 inches long. He used a scale factor of 2/3 to make his sketch. How many inches wide is Yuron’s sketch?

  18. math

    A pair of boots has an original price of $95. They are on sale for 35 percent off. What number can you multiply $95 by to equal the discounted price of $61.75?

  19. math

    use sigma notation to write the maclaurin series for the function ln(1+x)

  20. physics

    When a car screeches to a sudden stop to avoid hitting a dog, it slows down from 9.00 m/s to 0.00 m/s in 1.50 s. Find the average acceleration of the car?

  21. Physics

    A 7900 kg truck traveling east at 5 m/s collides with a 1650 kg car traveling 300 south of west at 20 m/s. After the collision at what angle do the two vehicles move. Express you answer in degrees from the positive x-axis. Use a coordinate where north is

  22. math

    If x and y are reciprocals of each other, then their product always equals A. 1 B. x^2 C. y^2 D. 1/x^2

  23. math

    Paige works at a department store and has a commission rate of 3 percent. Her sales for the quarter were $4,596. If she earns $50 per day and she worked 30 days in the quarter, what is the total amount she earned?

  24. math

    The Bishop family celebrated a birthday by dining out at a local restaurant. Their bill was $97.45. Mr. Bishop would like to leave a 18 percent tip at the table for the server. What is the total amount that the family will pay for the dinner? Round to the

  25. Math

    6x^2 - 7x - 5 is factored to (3x - 5)(2x + b). What is the value of b?

  26. Math grade 11 u

    Jose bautista hits a baseball that travels for 142m before it lands. The flight of the ball can be modelled by a quadratic function in which x is the Horizontal distance the ball has travelled away from jose, and h(x) is the height Vertical distance of the

  27. Calculus

    Givenƒ(x) = ex, verify that lim h->0 (e^x+h - e^h)/h + e^x and explain how this illustrates that ƒ′(x) = ln e • ƒ(x) = ƒ(x)

  28. College Alg

    Graph the polynomial in the given viewing rectangle. Find the coordinates of all local extrema. State each answer correct to two decimal places. (If an answer does not exist, enter DNE.) y = 2x3 − 3x2 − 12x − 32, [ −5, 5] by [−60, 30] find

  29. Urgent math

    A quadratic function is given. f(x) = x2 − 8x + 8 (a) Express the quadratic function in standard form.

  30. math

    use sigma notation to write the maclaurin series for the function 1/(1+x)

  31. English grammar

    Identify the verbal in this sentence as infinitive, gerund or participle. The old woman slept, not realizing she was no longer poor. I'm not sure if this is a gerund or a participle. "Not realizing" seems to be describing the old woman. I can't see how it

  32. math

    A box contains 5 red bowls, 6 yellow bowls and 3 white bowls. If 4 bowls are randomly drawn from the box at the same time, (a)find the probability that exactly 2 red bowls are drawn; (b)find the probability that at least 2 red bowls are drawn. My work: (a)

  33. maths

    the third term of A.p is 12 while the seventh term is 72 find (1)common differences (2) first term (3) find the sixth term

  34. french

    Paris? La Côte d'Azur? Monaco? Planifiez un voyage à ces destinations. Cherchez un hôtel (l'adresse aussi), un restaurant (l'adresse aussi) où vous mangerez et 3 sites touristiques vous visiterez. Faites le travail en forme d'un tableau (chart). I

  35. Math Check

    Is the following statement true: (x^4+6x^2+9)=x^2+3

  36. Physics Momentum: Elastic Collision

    The carbon isotope 14C is used for carbon dating of objects. A 14C nucleus can change into a different kind of element, a neighbor on the periodic table with lower mass, by emitting a beta particle – an electron or positron – plus a neutrino or an

  37. math

    The number ? could be the sum of three consecutive integers. A. 0 B. 2 C. 4 D. 8

  38. math

    If the product of 1999 real numbers is -1998, at least how many of these 1999 real numbers must be negative? A. none B. 1 C. 1997 D. 1998

  39. math

    In a recent Math Duel, my team began by graphing 51x+24+75. If our opponents graphed a line parallel to ours, they might have graphed A. 17x+16y=25 B. 17x+8y=50 C. 34x+8y+50 D. 34x+16y=50

  40. Math

    There were 256 people at a fundraiser. When the event was over, half of the people who remained left every 5 minutes. How long after the event ended did the last person leave?

  41. Physics

    An example of an elastic collision is The gravitational slingshot effect . A spacefship of mass 850 kg is moving at 9.5 km/s in the +x direction. It approaches the planet Saturn, mass 5.68 x10 26kg , which is moving in the –x- direction as shown in the

  42. calculus

    A cylindrical tank is to have a capacity of 1000 m³. It is to fit into a foundry that is 12 m wide with a height of 11 m. The base of the tank will cost half as much as the top. The metal for the side of the tank will cost four fifths as much as the top.

  43. psy 303 abnormal psychology

    According to the textbook, _______% of women never experience an !@#$%^& at all.

  44. Algebra

    4+ (-8) +12+

  45. Mathematics

    6x^2 - 7x - 5 is factored to (3x - 5)(2x + b). What is the value of b?

  46. Physics

    We commonly see Superman being shot and bullets bounce off of him. Suppose Mr. Bad shoots Superman with 4.00 kg bullets at a rate of 100 bullets/min for 9.00 s. If the speed of each bullet is 480.00 m/s and rebounds straight back with no change in speed,

  47. Physics/ Chemistry

    The carbon isotope 14C is used for carbon dating of objects. A 14C nucleus can change into a different kind of element, a neighbor on the periodic table with lower mass, by emitting a beta particle – an electron or positron – plus a neutrino or an

  48. Physics

    The two ropes shown in the bird's-eye view of (Figure 1) are used to drag a crate 3.7 m across the floor. How much work is done by the force fk→? How much work is done by the force T1→? How much work is done by the force T2→?

  49. theory of machines

    A winding drum raises a cage through a height of 120 m. the cage has, at first, an accelerationof 1.5 m/s^2 until the velocity of 9 m/s is reached, after which the velocity is constant until the cage nears the top, when the final retardation is 6 m/s^2.

  50. Algebra 1

    Can someone please help me understand this. This is not graded or anything I just want to know how to do this. - Chloe rolls two-sided number cubes and adds the numbers showing on the cubes. What is the probability that the sum of the number cubes is even

  51. Chemistry

    You mix 45 ml of .20M HCl with 45 ml of .20M KOH in a calorimeter. The temperature of both reactions before mixing is 21.5oC. The temperature rises for the mixture to 22.7oC after mixing. What is the enthalpy change per mole of water produced?

  52. statistics

    An online site presented this question, 'Would the recent norovirus outbreak deter you from taking a cruise?' Among 34,327 people who responded, 64% answered 'yes'. Use the sample data to construct a 90% confidence interval estimate for the proportion of

  53. Math

    If a recipe calls for 2/3 cups of sugar but I only want to make 1/4 of the recipe, how much sugar do I need?

  54. statistics

    An online site presented this question, 'Would the recent norovirus outbreak deter you from taking a cruise?' Among 34,020 people who responded, 64% answered 'yes'. Use the sample data to construct a 90% confidence interval estimate for the proportion of

  55. Urgent math

    For his services, a private investigator requires a $450 retention fee plus $95 per hour. Let x represent the number of hours the investigator spends working on a case. (a) Find a function f that models the investigator's fee as a function of x find f(x)

  56. Gtu

    Solved by gauss elimination 3x+4y+5z=18 2x-y+8z=13 5x-2y+7x=20

  57. Statistics

    A survey of 925 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 90% confidence interval for the true population of all voters in the state who favor approval.

  58. Statistics

    The music industry must adjust to the growing practice o consumers downloading songs instead of buying CDs. It therefore becomes important to estimate the proportion of songs that are currently downloaded. How many randomly selected song purchases must be

  59. Math

    z2(pi)rh=2(0.064)2(pi)r + 0.064(2*pi*h) z2*pi*r^2= 0.064(2*pi*r) pi*r^2h=1567.8 Find z,r,h

  60. Calculus

    (0.064)(2*pi*h)+(0.064)*4*pi*r=z*2*pi*r*h (0.064)2*pi*r=z*pi*r^2 pi*r^2*h=1567.8 Find r,h,z

  61. English

    It has some very unusual recipes. (Make it exclamatory). (A) what unusual recipese it has! (B) how unusual recipes it has!

  62. College Alg

    Use synthetic division and the Remainder Theorem to evaluate P(c). P(x) = 5x5 + 10x3 + x + 1, c = −2 p(-2)=

  63. Urgent math

    Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express the quotient P(x)/D(x) in the form P(x) D(x) = Q(x) + R(x) D(x) . P(x) = 10x3 + x2 − 21x + 9, D(x) = 5x − 7 p(x)/d(x)=

  64. Urgent math

    Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express P in the form P(x) = D(x) · Q(x) + R(x). P(x) = 4x3 + 5x + 9, D(x) = 2x + 1 P(x) =(2x + 1)*()+

  65. Jkr public school

    mole fraction of solute is 0.4 what is molality of solution

  66. Chemistry

    when are you going to use the water displacement method in taking the volume of the object?

  67. economic,business studies,geography and mathematical literacy

    what kind of a career should i persue with this subjects

  68. math

    give four equal fractions of 6/11

  69. Criminal Justice

    Hello, I have been reading so much I need help. What types of crimes industrialized nations does not recognize as a crime that the United States does? Is there a list to compare to? Thank You

  70. Chemistry

    The activation energy (E*) for a reaction is 195 KJ. If the k for this reaction is 3.46 x 10-5/min at 35oC, what will the temperature be in OF when k is 1.5 x 10-3/min?

  71. pcmb

    explane the term calomal eletrode

  72. math

    Missi designed a stained glass window and made a scale drawing using centimeters as the unit of measurement. She originally planned for the length of the window to be 44 in. but decided to change it to 48 in. If the length of the window in her scale

  73. Urgent math

    R(x) = −x5 + 4x3 − 3x (a) Describe the end behavior of the polynomial function. End behavior: y → rises to the right Incorrect: Your answer is incorrect. as x → ∞ y → falls to the left Incorrect: Your answer is incorrect. as x → −∞ can

  74. Urgent math

    Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express the quotient P(x)/D(x) in the form P(x) D(x) = Q(x) + R(x) D(x) . P(x) = 10x3 + x2 − 21x + 9, D(x) = 5x − 7 P(x) D(x) = 2x2+3x Incorrect: Your

  75. phi 208

    According to Nagel, which of the following may be permitted by absolutism, at least in some circumstances? (Points : 1) Intentionally killing an innocent person Doing something that brings about an innocent person's death Dropping a nuclear bomb on an

  76. English

    English is the language of opportunity.why bother to teach indigenous.

  77. Algebra

    If a bottle and a cork cost $2.00, and the bottle is $1.00 more than the cork, what is the cost of each?

  78. Algebra

    The length of a rectangle is two meters less than twice the width. If the area of the rectangle is 222 square meters, find the dimensions

  79. french

    A question about Les mots negatifs usuels... how would i write the negative for example A-t-elle des freres et des soeurs.. i know i would use ne..ni...ni And also the same for Ont-ils beaucoup travaille I think for the first on i would put ni in replace