Questions Asked on
August 2, 2014

  1. math

    A quart is approximately sixty cubic inches. A cu. ft of water weighs approximately sixty pounds. Therefore, a quart of water weighs, approximately, A. 2 lbs. B. 3 lbs. C. 4 lbs. D. 5 lbs.

  2. Math

    A model rocket is launched with an initial velocity of 164ft/sec. It's height h, in feet, after t seconds is given by the formula h=164t-16t^2. After how many seconds will the rocket first reach a height of 400ft?

  3. math

    Ivanna is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices. Company A charges 114 and allows unlimited mileage. Company B has an initial fee of 65 and charges an additional 0.70 for every

  4. Chemistry

    If you increase the number of moles of gas in a fixed volume container kept as a constant temperature. What happens?

  5. math

    The cost of importing five dozen china dinner sets, billed at $32 per set, and paying a duty of 40%, is A. $224 B. $2688 C. $768 D. $1344

  6. math

    With a tax rate of .0200, a tax bill of $1050 corresponds to an assessed valuation of

  7. Trigonometry

    Two observers who are 2 miles apart on a horizontal plane observe a balloon in a same vertical plane with themselves. the angles of elevation are 50 degrees and 65 degrees respectively. find the height of the balloon,(a)if it is between the observers;(b)if

  8. Algebra

    If p(x) is a polynomial and is divided by (x-k) and a remainder is obtained, then that remainder is p(k). If the quadratic p(x)=x^2-3x+5 gives the same remainder when divided by x+k as it does when divided by x-3k find the value of k, k is not equal to 0.

  9. Physics

    A stone is thrown vertically upward with a speed of 18.0 m/s. (a)How fast is it moving when it reaches a height of 11.0 m? (b)How long is required to reach this height ? (c)Why are there two answers to (b)?

  10. statistics

    Salaries for various positions can vary significantly depending on whether or not the company is in the public or private sector. The U.S. department of labor posted the 2007 mean salary for human resource managers employed by the federal government, as

  11. math

    In how many ways can the letters of the word FACTORING be arranged, without changing the order of the vowels a, o, i

  12. Math

    Simplify the following expressions by using trigonometric form and De Moivre's theorem a. (√3-i)^4 b. (-4+4i√3)^5 c.(2+3i)^4 d. (4-i)^6

  13. geometry

    I have to construct my initials J and E geometrically. I drew a base line with two points. Then I drew a line through them. I thought this was right for the E but it's not. What am I doing wrong? I do know how to make a parallel and perpendicular lines.

  14. Physics

    If the thickness of the probe in the direction of B is 1.97 mm, calculate the charge-carrier density (each of charge e).

  15. college math

    On August 4, 2007, NASA's Phoenix Mars Lander was launched into space to search for life in the icy northern region of the planet Mars; it touched down on Mars on May 25, 2008. As the ship raced into space, its jet fuel tanks dropped off when they were

  16. maths

    if the angle of elevation of a tower from a distance of 100m from its foot is 60*, then the height of tower is

  17. banking

    Your bank statement has arrived and shows an ending balance of $972.25. After reconciling the checks and deposits that have cleared, you find you have check #1234 for $15.00, #1235 for $9.23, and #1236 for $22.50 and two deposits of $123.56 and $156.78 as

  18. maths

    The Park's are buying new carpet for their house.They need about 1,175 square feet of carpet.The carpet they buy is sold by the square yard. Estimate the number of square yards of carpet the Parks need for their house. Show your work.

  19. Physics

    A projectile is launched at an angle of 30 to the horizontal with a speed of 30 m/s. How does the horizontal component of its velocity 1.0 s after launch compare with its horizontal component of velocity 2.0 s after launch?

  20. math

    Find the number of arrangements of the letters of the word STRENGTH if the order of the consonants must not be changed?

  21. algebra

    A and B are two points 150 km apart on a highway.two cars start from A and B at the same time if they move in the same direction they meet in 15 hours but if they move in the opposite direction they meet in 1 hour find their speeds

  22. teacing in early childhood programs

    authoritative teachers tend to do all of the following except a.explain why some behaviors are appropriate and acceptable and others aren't b.encourage and reword certain behaviors. c. focus most of their comments to children on what they've done wrong. d.

  23. math

    If 3= 9b/a ,What is a/b equal to ?

  24. dog behaver ,traing insturst ics penn state

    test for social behavior and commutation

  25. Trigonometry

    Hi! The question is really confusing to me. I can't sketch/visualize the problem. :( From a given position an observer notes that the angle of elevation of a rock is 47 degrees. After walking 1000 feet towards the rock, up a slope of 32 degrees, he finds

  26. Technology & Society

    Norman Meyers makes which of the following health predictions? A. Due to the development of technology, people will not have to exercise or diet in the future. B. Child mortality will increase throughout the world in the future. C. Tobacco companies will

  27. Physics

    A proton, traveling with a velocity of 6.8 × 106 m/s due east, experiences a magnetic force that has a maximum magnitude of 8.6 × 10-14 N and direction of due south. What are the magnitude and direction of the magnetic field causing the force? If the

  28. American Government

    Do the backgrounds of members matter in the legislative process?

  29. physics

    Can you please explain how to solve this question? Would I need to use the formula nλ=dsin(theta)? Red light with a wavelength of 660 nm and blue light with a wavelength of 480 nm are beamed at a double slit with a separation of 2x10^-3 mm. The third

  30. Technology & Society

    Based on brain research, Kahn suggests that to encourage neural branching, educators should use all of the following teaching strategies EXCEPT: A. application of different symbols. B. analogy. C. rote memorization. D. hypothetical thinking. I think it's

  31. College Physics 2

    An unstable particle called Bullroarium has a lifetime of 6x10E-10 seconds, measured at rest. If a Bullroariom particle zips past a stationary observer at 0.67c , find the stationary observer’s measurements for A.) Bullroarium lifetime as measured by the

  32. College Physics 2

    A broken-down spaceship (star Wreck?) flies across an international soccer field (Regulation length = 100 m) at a speed of 0.55c. A.) How long does the spaceship pilot measure the field to be? B.) From the spaceship pilot’s perspective, how long does it

  33. College Physics 2

    the Apollo 10 spacecraft traveled at 11 km/s just prior o its re-entry, setting a speed record for humans. Suppose advanced technology raises the speed record by a factor of 100, to 1100 km/s. if a time travel of 1 hour elapsed on a ground-based clock, by

  34. science

    Calculate the buoyant force in air on a kilogram of gold (whose density is about 19 grams per cubic centimeter). The density of air is 1.3 ✕ 10-3 grams per cubic centimeter. Remember that the buoyant force is equal to the weight of a volume of air that

  35. physics

    why the electric and magnetic fields are perpendicular to each other? why we need ampere circuital law when we already have bio sevarts law? why we use sin(theta) in the bio sevarts law why not the other ratios?

  36. College Physics 2.. HELP

    A 6 cm high object is placed 43ncm from a converging lens of focal length 24 cm. Find the image’s position and draw a ray diagram approximately to scale.

  37. Com/155

    The comparative and superlative of dustier

  38. math

    For a given right triangle, side A = 490 ft and side b = 960 ft. What is the measure of angle B to the nearest degree?

  39. statistics

    The trends in international mathematic and science study (TIMSS) in 2007 examined eighth grade proficiency in math and science. The mean mathematics scale score for the sample of eighth grade students in the US was 508.5 with a standard error of 2.83.

  40. Math

    An architect has allocated a rectangular space of 240ft^2 for a square dining room and a 14 ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.

  41. Precalculus

    A small business owner buys a truck for $20,000 to transport supplies for her business. She anticipates that she will use the truck for 5 years and that the truck will be worth $10,000 in 5 years. She plans to claim a depreciation tax credit using the

  42. calculus

    a small business owner buys a truck for $20,000 to transport supplies for her business. She anticipates that she will use the truck for 5 years and that the truck will be worth $10,000 in 5 years. She plans to claim a depreciation tax credit using the

  43. College math

    Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=5/(x+3)

  44. College math

    Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=(5x-6)/(2x+3)

  45. College math

    Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=x^3-27

  46. College math

    Convert to an exponential equation: -In45=3.80666249 and -Log sub.B T^5=W

  47. College math

    Express the following in terms of Sum(or differnece) of logarithm's: log sub-b T^5 W^2 Z

  48. Math

    Express the following in term of sum (or difference)of logarithms: log (10A)/(7B^2)

  49. Algebra

    Express as a single logarithm and, if possible, simplify: In x^2 + 3In x-In x^8 Thanks so much

  50. math

    Hey I'd really appreciate some help with this problem please. Kathie and her friend Tia are on their motorcycles heading north to Springfield on the same straight highway. Kathie leaves from a point 115 miles south of Springfield at 10:00 A.M., and Tia

  51. math

    Jane invests 500 at t=0 at a nominal annual interest rate of 6%, compounded quarterly. What additional amount will she need to invest at t=2 in order to have a total of 1,000 at t=5?

  52. math

    Many scientists believe that the increase of carbon dioxide (CO2) in the atmosphere is a major contributor to global warming. The Environmental Protection Agency estimates that one gallon of gasoline produces on average about 19 pounds of CO2 when it is

  53. physics

    why is the following situation impossible? a normally proportioned adult walk briskly along a straight line in the +x direction, standing straight up and holding his right arm vertical and next to his body so that the arm does not swing. his right hand