Cho hbh ABCD ,O lµ giao ®iÓm 2 ®-êng chÐo AC vµ BD . Gäi M, N lÇn l-ît lµ trung ®iÓm cña OB ,OD a) CM : Tg AMCN lµ hbh b) AM c¾t BC ë E , CN c¾t AD ë F , C/m : AC, BD, E F ®ång quy

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line