Based on these results can mei dog multiply

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

Drag each equation to the correct location on the table. for each equation, determine the number of solutions and place on the appropriate field in the table.