Questions asked
in a list of 25 different numbers, the average of all the numbers greater than the median is 200, and the average of all the numbers less than the median is 100. If the average of the 25 numbers is an integer, which of the following could be the value of the median? - 120, 125, 140, 145, 160, 175, 180?
Achieve: Study Skills Question: 7 of 18 Time Remaining: 16:33.03 Kolb's model divides people into either reflective or active learners. True False PREVIOUS FLAG CONTINUE
Christian is 11% older than billy. Billy is 12% than John. how much is christian older than john?
Given the following sets, find the set (A U B U C) U = {1, 2, 3, ...,7} A = {1, 3, 5, 6} B = {1, 2, 3} C = {2, 3, 4, 5, 7}
Suppose that the p.d.f. of a random variable X is as follows: $f(x) = \frac{4}{3}(1 - x^3)$ for $0 < x < 1$ and 0 otherwise. $Pr(X < \frac{1}{2})$ a. 0.6667 b. 0.6458 c. 0.4604 d. 0.6204
FFT/Second Order Systems Sample Problem #3 Continued a) The free vibration response of the actuator arm was measured with the accelerometer and is plotted below. Using this plot, determine damping ratio of the actuator arm. Clearly label the location of all values obtained graphically. b) Determine the spring stiffness and the natural frequency [Hz] of the actuator arm c) Based on the calculated natural frequency, is it probable that rotational imbalance is causing resonance vibration in the actuator arm? Why or why not? Hint: Using the plot below, we want to avoid $\omega/\omega_n$ placing the system in the resonance band where $\omega$ is the vibration frequency induced by the hard drive rotation.
The following tensile strengths were measured for four specimens of the same steel alloy: Computation of average value $ar{x} = frac{sum_{i=1}^{n} x_i}{n}$ Computation of standard deviation $s = left[frac{sum_{i=1}^{n} (x_i - ar{x})^2}{n-1} ight]^{1/2}$ Sample Number Tensile Strength (MPa) 1 520 2 512 3 515 4 522 (a) Compute the average tensile strength. (b) Determine the standard deviation.
Find parametric equations for the line described below. The line through the point P(-6, 5, 3) parallel to the vector 2i - 6j - 6k x = -2t + 6, y = 6t - 5, z = -6t - 3 x = 2t - 6, y = -6t + 5, z = -6t + 3 x = 2t + 6, y = -6t - 5, z = -6t - 3 x = -2t - 6, y = -6t + 5, z = 6t + 3
You were considering a project with cash flows of &-95,000, $32,400, $14,600, $39,200, $42,800 for year 0 to 4 respectively. If the required rate of return for this kind of investment is 10% what is the profitability index
Wages are determined by the interaction of supply and demand in labor markets. The shortages of workers in many industries will impact the wages that both firms will need to offer, and the wage workers will receive. Explain how firms will be able to deal with the shortage of workers in a strong labor market
