Considere as matrizes a, b e c, quadradas da mesma ordem. sabe-se wue a=b=c e que a11=x+3y; b11=4x+2y e c11= 10, sendo a11,b11 e c11 os elementos da primeira linha e primeira coluna das matrizes a, b e c, respectivamente. com essas informações, qual o valor de x. y?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?