Current cannot exist without

a. voltage.

b. resistance.

c. an open circuit.

d. all of these

You are using a polynomial time 2-approximation algorithm to find a tour t for the metric traveling salesman problem. Which of the following statements is true? A. The tourt is never optimal. B.

Originally 21 acts were tentatively scheduled to perform at the arena; only 10 have been booked. What is the shortfall if the other acts do not perform, assuming an average profit margin of $175,000 for each concert?

Athena double-clicked on a task named Summarize Report. In the Task button of the Show group, she changed the "% Complete" field from 65 to 100 and saved and closed the task.

How is a computer and a iphone alike

Consider the following statements. A. An entity integrity constraint states that no primary keyvalue can be null. B. A referential integrity constraint is specified between tworelations. C. A foreign key cannot be used to refer to its ownrelation.

Recall when you built your binary message sending device. Why did we decide to send a message as a sequence of states (A and B) rather than modifying our devices to represent more states (State C, State D, State E, ...)

Public-key cryptography can be used for encryption (ElGamal for instance) and key exchange. Furthermore, it has some properties (such as nonrepudiation) which are not offered by secret key cryptography.

What kind of heat we feel from the sun

What is tail level? A. A volume control that adds more volume to the reverb sound as it decays B. A volume control that sets how close the reverb sound's amplitude is to the original sound C.

Which type of communities handle recurring tasks in organization