Please help with this exercise: Consider the vectors v1, v2, v3 in R2 (sketched in the
accompanying figure). Vectors v1 and v2 are parallel.
How many solutions x, y does the system
xv1 + yv2 = v3
have? Argue geometrically.

The volume of a cone is 37x3 cubic units and its height is x units. which expression represents the radius of the cone's base, in units? 1 s o 3x o 6x obx 93x2

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

What ia the sum if the first 7 terms of the geometric series