Consider the set defined by the following inequalities: (x1 ≥ x2 − 1 and x2 ≥ 0) or (x1 ≤ x2 − 1 and x2 ≤ 0). 1. draw the set. is it convex? 2. show that it can be described as a single quadratic inequality of the form q( x) = x ⊤ ax + 2b ⊤ x + c ≤ 0, for a matrix a = a ⊤ ∈ r2,2, b ∈ r2 and c ∈ r which you will determine. 3. what is the convex hull of this set?

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Define multiplicative inverse. give an example of a number and its multiplicative inverse.