• Q : Investigate browsing activity by shoppers....
    Mathematics :

    In study conducted to investigate browsing activity by shoppers, each shopper was initially classified as a nonbrowser, light browser, or heavy browswer.

  • Q : Intersection of two matrices....
    Mathematics :

    Is it possible to find out the intersection of two matrices if the matrices don't equal each other. Say, H = (1,2,3,4) which is a 2x2 matrix and K= (5,6,7,8) which is a 2x2 matrix. So what would HnK

  • Q : Well-stirred mixture....
    Mathematics :

    A 200 liter tank initially haves 100 liters of pure brine. Pure water is added at the rate of 2 L/min, and well-stirred mixture is drained at a rate of 1 L/min. How much brine remains when the tank

  • Q : Feet of water over the top of tank....
    Mathematics :

    A vertical conical tank which is the 10ft tall with radius of 6 feet at the top is full of water. How much work is done to empty bottom two feet of water over the top of tank? THEN, empty the top t

  • Q : Transform homogeneous equation....
    Mathematics :

    Transform homogeneous equation dy/dx=sqrt x^2+xy+y/2x+y into seperable first-order equation by using the appropriate substitution. You do not need to solve the resulting equation.

  • Q : Liters of pure brine....
    Mathematics :

    A 200 liter tank initially haves 100 liters of pure brine. Pure water is added at the rate of 2 L/min, and well-stirred mixture is drained at the rate of 1 L/min. How much brine remains when the ta

  • Q : Approximate solution to the initial value problem....
    Mathematics :

    Determine the approximate solution to the initial value problem dy/dx = 4x+1/2y;y(0)=1 at the point x = 1, using a single step of size h = 1.

  • Q : Seperable first-order equation....
    Mathematics :

    Transform the homogeneous equation dy/dx=sqrt x^2+xy+y/2x+y into seperable first-order equation by using the appropriate substitution. You do not need to solve the resulting equation.

  • Q : Roots of the simultaneous nonlinear equations....
    Mathematics :

    Find out the roots of the simultaneous nonlinear equations (x-4)^2 + (y-4)^2 = 5 x^2 + y^2 = 16 Employ a graphical approach to obtain your initial guesses.

  • Q : Rate proportional to its population....
    Mathematics :

    A population of fish in the lake grows at the rate proportional to its population. There are originally 600 fish in the lake and in the absence of any outside factors, the population will double in

  • Q : Rate proportional to its population....
    Mathematics :

    A population of fish in lake grows at the rate proportional to its population. There're originally 600 fish in the lake and in absence of any outside factors, the population will double in 4 months

  • Q : Roots of the simultaneous nonlinear equations....
    Mathematics :

    Find out the roots of the simultaneous nonlinear equations (x-4)^2 + (y-4)^2 = 5 x^2 + y^2 = 16 Use a graphical approach to obtain your initial guesses. Determine refined estimates with the two-equ

  • Q : Cubic feet of outside....
    Mathematics :

    The air in the room 50 ft by 20 ft by 8 ft tests 0.2% carbon dioxide. Starting at t=0, outside air testing 0.05% carbon dioxide is admitted to room. How many cubic feet of this outside air should b

  • Q : Question regarding the dna chain....
    Mathematics :

    A DNA chain is string of As, Ts, Gs, and Cs. How many DNA chains are there of length 12 which have the following properties? Has string of 10 or more consecutive Gs.

  • Q : Determine the premium of one-year call option....
    Mathematics :

    Suppose that the risk free rate is 3.5%. Determine the premium of one-year call option with strike price of $38.50, if the profit of the buyer of the call is $4.78 and stock spot price is $44.34 at

  • Q : Determine the maximum current....
    Mathematics :

    Find out the current i at any time t after the switch is closed. 3 Determine the maximum current that can be obtained from the simple circuit?

  • Q : Determine the relation between recursion and induction....
    Mathematics :

    Determine the relation between recursion and induction? How do you go about finding an explicit (closed-form) formula for a recursion relation?

  • Q : Bounded metric....
    Mathematics :

    Prove the following Theorem. If (X,d) is a metric space, then there is bounded metric on X which is equivalent to d. recall: When we say a metric p is bounded, we mean that there exists an M >0

  • Q : Question regarding the differential equation....
    Mathematics :

    Find the value of k so that the given differential equation is exact. (y^3 + kxy^4 ? 2x) dx + (3xy^2 + 24x^2(y^3)) dy = 0.

  • Q : Determine differential equation....
    Mathematics :

    Find out whether the given differential equation is exact. If it is exact, solve it. (y ln y ? e?xy) dx + (1/y + x ln y) dy = 0.

  • Q : Approximate the integral....
    Mathematics :

    The following data can be employed to approximate the integral: M = ?3? ÷ 2 0 cos x dx N1(h) = 2.356194 N1(h ÷ 2) = -0.4879837 N1(h ÷ 4) = -0.8815732 N1(h ÷ 8) = -0.97091

  • Q : Solution of the form....
    Mathematics :

    Show that the following equation has a solution of the form u(x,y) = e^(ax+by). Find the constants a and b: u_xx + u_yy = 5e^(x-2y)

  • Q : Plumbing from the water main....
    Mathematics :

    A copper pipe, employed for plumbing from the water main to a house, is 5 meters long and has a circular cross-section 2.8 cm in diameter. There is a 2 cm diameter hole in the center of the cross-s

  • Q : Approximate to this solution on interval....
    Mathematics :

    Carry out eulers method twice to approximate to this solution on interval [0, 0.5], first with step size h = 0.25, then with step size h = 0.1. Compare the three decimal-place values of the two app

  • Q : Determine an example of a family....
    Mathematics :

    Determine an example of a family {Un : n is an element of N} of open sets of R for which the intersection from n=1 to infinity Un is not open.

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