Find the equation of the line that contains the point (4,−2) and is perpendicular to the line y=-2x+8 .

State if the two triangles are congruent. if they are, state how you know?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis