ana maria are 43 de timbre in trei clasoare. din primul pune 4 in al doiilea si 4 in al 3 lea. in primul clasor vor ramna de doua ori mai putine timbre si cu 3 mai putine decat in al 3 lea clasor. cate timbre sunt in fiecare clasor? repde va rog, mai am o ora la dispozitie :

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.

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9