IdeasCuriosas - Every Question Deserves an Answer Logo

Questions in Grade College

[Answered] Evaluate the following. $\begin{array}{r} |-6|=\square \\ |9|=\square \end{array}$

[Answered] Describe generators and relations for all dihedral groups [tex]$D_{2 n}$[/tex]. (Hint: Let [tex]$x$[/tex] be reflection about a line through the center of a regular n-gon and a vertex, and let [tex]$y$[/tex] be counterclockwise rotation by [tex]$2 \pi / n$[/tex]. The group [tex]$D_{2 n}$[/tex] will be generated by [tex]$x$[/tex] and [tex]$y$[/tex], subject to three relations. To see that these relations really determine [tex]$D_{2 n}$[/tex], use them to show that any product [tex]$x^{i_1} y^{i_2} x^{i_3} y^{i_4} \cdots$[/tex] equals [tex]$x^i y^j$[/tex] for some [tex]$i, j$[/tex] with [tex]$(0 \leq i \leq 1,0 \leq j\ \textless \ n)$[/tex].

[Answered] True or False? Employees may use devices such as boxes and barrels on scaffold platforms to increase their working level height, as long as the devices are "reasonably secure." A. True B. False

[Answered] $y \geq x^2+5$ What is the $x$-intercept? What is the $y$-intercept?

[Answered] 9. The 5th and 10th terms of an arithmetic sequence are 23 and 48 respectively. a) Write down the general term of the arithmetic sequence. b) Find the common difference and first term of the sequence. c) Is the 15th term of the sequence 74?

[Answered] Simplify the following complex fraction. [tex]$\frac{\frac{z+6}{z-4}}{\frac{z^2-36}{z^2-16}}$[/tex]

[Answered] What creative decluttering strategy recommends counting bags, items, or days to make decluttering more fun? A. Grouping things together B. Setting a schedule C. Using a number system D. Tackling it all at once

[Answered] We will start by choosing a good research DESIGN. From the following choices, select the design that would work best for studying whether sleep deprivation affects academic performance. A. Correlational design B. Experimental design C. Case study design

[Answered] Read the table and question below. | | Omissions | found in the checkbook should have been entered into the checkbook.

[Answered] If [tex]f(x)=2x[/tex] and [tex]g(x)=5x+2[/tex], what is [tex](f \cdot g)(x)[/tex] when [tex]x=3[/tex]?