The radius is half the diameter. 19*2=38. The diameter is 38.
Answer:

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The slope of a line is always zero because the line does not move up or down on the y-axis.
This task simply requires the completion of the table using simple mathematical functions on the header of each column.
<h3>What are mathematical functions?</h3>
This refers to a collection of mathematical rules using mathematical operators that contain dependent and independent variables.
In this case, the rule of BODMAS comes to bear. See the full and completed table attached.
Learn more about mathematical functions at:
brainly.com/question/25638609
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