Consider y1 = t 2 and y2 = t|t|, namely, y2(t) = ( t^2 if t ≥ 0 −t ^ if t < 0 show that y1, y2 are linearly independent on (−∞, ∞) and yet w(y1, y2)(t) = 0 for all t.

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15