PX and QY are altitudes of the acute triangle PQR, and Z is the midpoint of PQ. How do you prove that triangle XYZ is isosceles?

Find the volume of the solid generated when the region bounded by y= x and y= 4√x is revolved about the x-axis the volume of the solid is: (type an exact answer cubic units)

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

What is the x-intercept and y-intercept of the equation 2x+1. 2o