Answer:
Explanation:
Assume that after each shaking, a silver dollar has an equal chance of "head" or "tail" up.
There will be likely 100/2 = 50 dollar coins with "heads" up. Removing them leaves 50 coins.
Again after the second shakes, 50/2 = 25 coins will likely be "heads" up. Removing them leaves 25 coins.
After the third shakes, approximately 25/2 = 12.5 coins will be "heads" up. Of course there is no 0.5 coin. Rounding up you likely get to keep 13 dollar coins.
Answer:
C. interact frequently with the audience.
Explanation:
Presentation can be defined as an act of talking or speaking formally to an audience in order to explain an idea, piece of work, project, and product with the aid of multimedia resources or samples.
Students who want to create an effective presentation should interact frequently with the audience.
This ultimately implies that, to create an effective presentation, speakers are saddled with the responsibility of interacting more often with the audience by taking questions, making a joke, getting them to repeat informations loud at intervals etc.
Additionally, students are advised to be passionate and show enthusiasm during their presentation because it would enhance their ability to speak confidently and as such leading to an engaging presentation.
Answer:
Việt Nam đứng thứ 73 trong bảng xếp hạng Chỉ số Thịnh vượng chung.
Explanation:
I would think its A. the rest of the options are for people that can stand still and focus.
