A set of complex numbers is specified. Determine all the boundary points and whether the set is open, closed, open and closed, or not open and not closed. Specify all boundary points of the set (whether or not they belong to the set). V is the set of all z with $2<\operatorname{Re}(z) \leq 3$ and -1 < Imz < 1.

A tube, open at only one end, is cut into two shorter (nonequal) lengths. The piece that is open at both ends has a fundamental frequency of 425 Hz, while the piece open only at one end has a fundamental frequency of 675 Hz. What is the fundamental frequency of the original tube?

To maximize success, which method of note-taking should Juan use?

a. He should take notes in his own words as much as possible. b. He should write down every word from the PowerPoint slides used in class. c. He should highlight the text rather than writing his own notes. d. He should make sure that his notes contain the exact words used by his instructor.

What is specific energy in an open channel flow?

The houses on the west side of Lincoln Avenue are consecutive odd numbers. Sam and Colleen are next-door neighbors and the sum of their house numbers is 572 . Find their house numbers.

the atrioventricular (av) heart valves open and close ________.

For each function, find (a) the critical numbers; (b) the open intervals where the function is increasing; and (c) the open intervals where it is decreasing. $y=2.3+3.4 x-1.2 x^{2}$

Give the meanings of the following terms.

open reduction _________________________________________

Choose an appropriate metric unit and estimate given of the following measures (check your estimates).
a. The thickness of the top of a desk
b. The length of this page of paper
c. The height of a door

In the sentence below, underline the collective nouns once and the compound nouns twice.

However, when we got there, there was a sign on the museum door: “Museum closed due to floodwater.”

Standing waves are set up in organ pipes. Think about an organ pipe with a fixed length, which may be open or closed. An open pipe is open at both ends, and a closed pipe is closed at one end and open at the other. A standing wave will have an antinode at an open end and a node at a closed end. Identify (draw) the wavelengths of the first three characteristic frequencies for the pipes (that is, the first three wavelength segments that will "fit" into the pipes). Show your answers in terms of the length $L$ of the pipe, such as $L=\lambda / 3$ or $\lambda=3 L$ (not correct values).

For each function, find (a) the critical numbers; (b) the open intervals where the function is increasing; and (c) the open intervals where it is decreasing. $y=x^{1 / 3}+x^{4 / 3}$

What does an open dot on a graph mean?

Explain why, on a cold day, the metal door handle of an automobile feels colder to the touch than a plastic steering wheel, even though both are at the same temperature.