4. Identify the domain and range of the relation

{(2,4),(7,-9),(1,4),(3, -6), (8,0)}

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

What is the length of the unknown leg in the right triangle ?