The input-output equation characterizing an amplifier that saturates once the input reaches certain values is where x(t) is the input and y(t) the output. (a) plot the relation between the input x(t) and the output y(t). is this a linear system? for what range of input values is the system linear, if any? (b) suppose the input is a sinusoid x(t) = 20 cos(2πt)u(t), carefully plot x(t) and y(t) for t = −2 to 4. (c) let the input be delayed by 2 units of time, i. e, the input is x1(t) = x(t − 2) find the corresponding output y1(t), and indicate how it relates to the output y(t) due to x(t) found above. is the system time-invariant?

Drag and drop the answers into the boxes to complete this informal argument explaining how to derive the formula for the volume of a cone. since the volume of a cone is part of the volume of a cylinder with the same base and height, find the volume of a cylinder first. the base of a cylinder is a circle. the area of the base of a cylinder is , where r represents the radius. the volume of a cylinder can be described as slices of the base stacked upon each other. so, the volume of the cylinder can be found by multiplying the area of the circle by the height h of the cylinder. the volume of a cone is of the volume of a cylinder. therefore, the formula for the volume of a cone is 1/3 1/2 1/3πr^2h 1/2πr^2h πr^2h πr^2

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

Which of the choices shown could be used to prove that aacp=abcp ?