Which circles have an area of 9pi m2? choose all answers that are correct. a. a circle with a radius of 3 m b. a circle with a diameter of 6 m c. a circle with a radius of 9 m d. a circle with a diameter of 9 m. multiple choice question!

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.