ha Let A be a 3 x 3 diagonalizable matrix with eigenvalues: 14 = 4 with 7 corresponding eigenvector vi |--4), 12 = 2 with corresponding eigenvector 2 [1 v2 = 10, and 13 = 1 with corresponding eigenvector vz = 1 Then 0 P-1 AP= D with: 1​

Dots sells a total of 279 t-shirts ($2) and shorts ($4). in april total sales were $670. how many t-shirts and shorts did dots sell?

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i