Add the two equations, 0.75x+1.5y=40 and -1.5x-1.5y=-60, to find the value of x.
Add the two equations, 0.75x+1.5y=40 and -1.5x-1.5y=-60, to find the value of x.
Solve the system using Gaussian elimination or Gauss-Jordan elimination. -3x-3y-3z = 30 9x- 9y- 9z -90 -1.5x-1.5y-1.5z-15 Select one: a. (2, 2, 6)) Ob. {(x,y,z)1-3x-3y-3z = 30) Ос. { } Solve the system using Gaussian elimination or Gauss-Jordan elimination. -3x-3y-3z = 30 9x- 9y- 9z -90 -1.5x-1.5y-1.5z-15 Select one: a. (2, 2, 6)) Ob. {(x,y,z)1-3x-3y-3z = 30) Ос. { }
7. Consider the two functions: f(x, a)-40 - 3xa 9(2) 10 + 7x (a) Find the x value of the point where the two equa- (b) Find the value of the functions at the point where erwya tions intersect (in terms of the variable a) the two equations intersect (in terms of the variable a) (c) Take the partial derivate of f with respect to , and with respec t to a. d) What are the values of these derivatives...
5) find the value of X Find the value of x. 210° . a) O 60° b) O 150 c) O 300° d) O 3159 e) O 30° f) None of the above
2. A system is described by the following difference equation n]1.5y[n0.56y[n -2]+x{n-0.2x{n-] a) Find the transfer function of the system b) Let xn]un]. Compute an analytical expression for the response y[n]. Use Matlab to calculate the coefficients c) Simulate and plot the response using Matlab.(stem plot) Generate 50 points. (Matlab: x ones(1,50)); 2. A system is described by the following difference equation n]1.5y[n0.56y[n -2]+x{n-0.2x{n-] a) Find the transfer function of the system b) Let xn]un]. Compute an analytical expression for...
Find both the r-intercept and the y-intercept of the line given by this equation. 1.5x-0.7y-0.8-0 Round your answers to two decimal places x-intercept: y-intercept:
If X follows a two-parameter Pareto distribution with a = 3 and θ = 100, find the density function of Y, where Y- 1.5X
Find the x-value for the absolute maximum of the given function. x 40 9 a X) =
(x) (m) Consider the wave shown in the figure. tes 60 40 20 0 -20 -40 -60 100 300 500 a) Calculate the velocity of this wave. b) Find the wavelength of this wave. ym) c) Find the frequency and period of this wave. d) Write an expression for this wave. tt = 3ss 60 40 20 0 -20 -40 -60 1 100 300 500 -ỳ ()
x P(X=x) 10 0.1 20 0.15 30 0.2 40 50 0.15 60 0.15 The incomplete table at right is a discrete random variable x's probability distribution, where x is the number of people who will enter a retail clothing store on Saturday. Answer the following: (a) Determine the value that is missing in the table. (b) Explain the meaning of P(x < 40) as it applies to the context of this problem. (c) Determine the value of P(x > 40):...
Let X be a random variable with the following probability distribution: Value x of X 40 50 60 70 80 P(X=x) 0.05 0.25 0.10 0.30 0.30 Find the expectation E (X) and variance Var (X) of X. (If necessary, consult a list of formulas.) x 6 ? E (x) = 0 Var(x) = 0