A diameter of a circle has endpoints A(9,-4) and B(3, -2). Determine the centre
of the circle.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189