How to solve 3x+y=15 and x+3y=10 using subsetution method

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

Find the distance between the point (-3,-4), and (see the picture below)

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.