The equation of the circle whose center is at (2, 1) and radius is 3 is
a. (x + 2)² + (y + 1)² = 9
b.(x - 2)² + (y - 1)² = 9
c.(x - 2)² + (y - 1)² = 3

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap