To find the median of a trapezoid we need the top and bottom lengths. Start by constructing line BH such that BH is perpendicular to AD and H is on the line AD. We can AD using BC and a little trig. …

Jul 9, 2016 · The middle term, which is therefore the median, is 76. If you were given a data set with an even number of terms, then the median would be defined as the mean of the two middle terms.

How do you calculate the area if the z score is .99, mean is 0 and standard deviation is 1? How do you find the z-score for an IQ test score of 142 when the mean is 100 and the standard deviation is 15? …

Is covariance a measure of variability? If the median is 1900, the mean is 2144.58, and the sample standard deviation is 884.07, then what is the sample variance? What is the variance of z=2x+3y, in …

Find the median from following data? There are 12 data-points between 10 and 19; 19 data-points between 20 and 29; 31 data-points between 30 and 39; 27 data-points between 40 and 49; 16 data …

As you know, molarity is a measure of the number of moles of solute, which in your case would be phosphoric acid, present in

"Old pH = 4.72"; "New pH = 4.70" > The strategy to follow is a) Write the chemical equation for the buffer. b) Calculate the "pH" of the buffer. c) Calculate the moles of "HCl" added. d) Calculate the …

Mar 26, 2016 · ΔG= "-9.35 kJ/mol" > We must calculate the equilibrium constant for the reaction, then calculate the free energy change.

Now we can calculate the hypotenuse #g# using Pythagorean theorem:

15 area units. Given two conics C_1 (x_1,y_1)=x_1^2+y_1^2-2=0 and C_2 (x_2,y_2)=y_2^2-8x_2=0 The tangent space to those conics is m_1 = (dy_1)/ (dx_1) = -x_1/y_1 m_2 ...