Determine the magnitude and the ordered pair that represents the vector from (18,3) to (-4,16). a. (22,-13); magnitude=25 c. (13,-22) magnitude=26 b. (-22,13); magnitude=25.6 d. (-13,22) magnitude=25.2

We have been given two points to find the vector representing the line joining the points from point (18,3) to (-4,16).
To get the vector required we arrange the points in column manner the solve it as below. 

vector AB = AO + OB
                   = OB - OA
From this, the required vector is

(-4,16) - (8,3) = (-22, 13)

And the magnitude of this vector would be, 

=√(-22)²+13²
=√653
=25.55.

Answer is, 
vector (-22,13); magnitude = 25.6
 

The answer on E2020 is B: (-22,13); magnitude=25.6

Geometric constructions require the following tools;

A protractor, a straightedge, and a pencil

The question relates to the tools required for a geometric construction. From the question options, the complete set  of tools with which a geometric construction is made comprises of the following

1) A protractor, which is used for angle measurements

2) A straightedge, which is used to draw lines which are straight or for checking the straightness of a line

3) A pencil, which is made up of a graphite stick reinforced by an enclosure of wood or other material, is used for creating visible marks of drawings or writing on paper or some other writing materials by physical abrasion

A compass is used for navigation of the geographic cardinal directions and comprises of a magnet.

Step-by-step explanation:

Hope this helps:)