cho tam giác ABC vuông tai A có canh góc vuông AB=15cm, AC=20cm tu C kẻ duong vuong góc voi canh huyen, duong nay cat duong thang AB tai D. tính AD, CD

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

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.

In triangle opq right angled at p op=7cm, oq-pq=1 determine the values of sinq and cosq