<span>K-means clustering is a data mining learning algorithm used to cluster observations into groups of related observation without any prior knowledge of those relationships.
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X=121
.......... ... . ......
Answer:
D
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( where r is the radius )
Here r = 15, thus
x² + y² = 15² , that is
x² + y² = 225 → D
D must be perpendicular to a because d is parallel to c. c is perpendicular to b. b is parallel to a.
Answer:
19
Step-by-step explanation:
when you multiply 19 by itself you get 361
