nhà quản trị cấp cao có nhất thiết phải giỏi kĩ năng kỹ thuật? điều gì sẽ xảy ra nếu nhà quản trị cấp cao không biết gì về kĩ năng kĩ thuật

The measure of the angles supplement is 30 more than four times that of its complement. find the measure of the angle described

The y-value if a data point corresponding to x1

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?