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Questions in Grade College

[Answered] What is the simplified form of this expression? $(8 x-7)+(-2 x-9)-(4 x-3)$

[Answered] Muscles make up about 24 percent of a person's total body weight. Select one: True False

[Answered] For [tex]f(x)=\left\lfloor\frac{95}{x}\right\rfloor[/tex], evaluate [tex]f(12)[/tex]. *This function uses greatest integer notation.

[Answered] Is the solution shown below correct? Explain. $\begin{array}{l} 9 x+2=8 x^2+6 x \\ -8 x^2+3 x+2=0 \\ x=\frac{-3 \\pm \\sqrt{(3)^2-(4)(-8)(2)}}{-16} \\ x=\frac{-3 \\pm \\sqrt{9-(64)}}{-16} \\ x=\frac{3 \\pm \\sqrt{55 i}}{16} \end{array}$

[Answered] Find the value of $c$ and $YZ$ if $Y$ is between $X$ and $Z$. $XY = 11, YZ = 4c, XZ = 83$ $c = $ $YZ = $

[Answered] Which should be used for an external-informational message? A. A tone and style that builds a relationship with the reader B. An indirect order like that used for bad news messages C. A power ending that makes the reader a subordinate D. A general statement that skips details

[Answered] Review the proof of de Moivre's theorem (not in order). Which steps must be switched to put the proof in order? Proof of de Moivre's Theorem A = [cos (\theta)+i sin (\theta)]^k \cdot[cos (\theta)+i sin (\theta)]^1 B = cos (k \theta+\theta)+i sin (k \theta+\theta) C = cos (k \theta) cos (\theta)-sin (k \theta) sin (\theta)+i[sin (k \theta) cos (\theta)+ cos (k \theta) sin (\theta)] D = [cos (k \theta)+i sin (k \theta)] \cdot[cos (\theta)+i sin (\theta)] E = cos [(k+1) \theta]+i sin [(k+1) \theta] A. steps B and C B. steps B and D C. steps C and D D. steps C and E

[Answered] Why is soil porosity important for plant growth?

[Answered] When does government regulate producers in a mixed-market economy? A. always B. as needed C. as requested D. never

[Answered] What does each line of a video field contain? A. time delay signal B. start-stop-start signal C. contrasting signal D. horizontal sync pulse signal