Which expression is equivalent to StartRoot StartFraction 55 x Superscript 7 Baseline y Superscript 6 Baseline Over 11 x Superscript 11 Baseline y Superscript 8 Baseline EndFraction EndRoot? Assume x > 0 and y Greater-than 0.

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Asphere has a diameter of 10 in. what is the volume of the sphere?

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv